Showing posts with label assumptions. Show all posts
Showing posts with label assumptions. Show all posts

12 May 2026

🤖〽️Prompt Engineering: Copilot Unabridged (Part 186: How Context Isolation Can Be Used to Counter AI Invisible Prompt Injection)

Prompt Engineering Series
Prompt Engineering Series

Prompt: "write a post of 600 words on how context isolation can be used AI invisible prompt injection"

Introduction

Invisible prompt injection is one of the most insidious vulnerabilities in modern AI systems. It exploits a simple but dangerous fact: large language models treat nearly all input as potentially meaningful context. When hidden instructions are embedded inside documents, images, or metadata, the model may follow them without the user ever realizing it. This creates a silent hijacking of the AI’s interpretive process. Among the emerging defenses, context isolation stands out as one of the most powerful architectural strategies. It does not merely filter or clean input; it restructures how AI systems interpret information, ensuring that only the user’s explicit intent shapes the model’s behavior.

The first way context isolation helps is by separating instructions from data. Many prompt injection attacks succeed because AI systems treat everything they ingest - user prompts, document contents, webpage text - as part of a single, unified context. If a hidden instruction is embedded anywhere in that context, the model may treat it as a command. Context isolation breaks this assumption. It creates distinct channels: one for user instructions and another for external content. The model is explicitly told which channel contains commands and which contains data to analyze. This prevents hidden instructions from masquerading as user intent.

A second benefit is reducing the interpretive ambiguity that attackers exploit. When a model receives a long block of mixed content, it must infer which parts are instructions and which parts are material to be processed. Invisible prompt injection thrives in this ambiguity. By isolating context, systems can enforce strict boundaries: the model knows that only the instruction channel contains actionable directives. Everything else is treated as inert data. This reduces the model’s susceptibility to manipulation by eliminating the grey zone where hidden instructions can hide.

Another crucial aspect of context isolation is the ability to apply different safety and filtering rules to different channels. User instructions may require semantic interpretation, while external content may require sanitization, normalization, or structural analysis. When everything is blended together, these safeguards become difficult to apply consistently. Context isolation allows systems to treat each channel according to its risk profile. For example, external content can be aggressively sanitized without affecting the clarity of the user’s instructions. This layered approach strengthens the system’s overall resilience.

Context isolation also supports retrieval‑anchored workflows, where the model is grounded in external sources rather than raw text. When a user asks the AI to summarize a document, the system can isolate the document as data and the user’s request as instruction. The model is then guided to treat the document only as material to analyze, not as a source of commands. This prevents hidden instructions inside the document from influencing the model’s behavior. The model becomes a controlled interpreter rather than a passive consumer of whatever text it receives.

A further advantage is the ability to enforce structural templates. When instructions and data are isolated, the system can wrap them in predictable formats. For example, the instruction channel might always be framed as a fixed schema, while the data channel is inserted into a predefined slot. This prevents attackers from injecting new instruction boundaries or manipulating the structure of the prompt. The model sees a consistent, controlled layout every time, making it harder for malicious content to alter the execution flow.

Finally, context isolation is powerful because it scales with complexity. As AI systems are integrated into workflows involving multiple documents, tools, and data sources, the risk of invisible prompt injection grows. Context isolation provides a generalizable framework: no matter how many inputs the system receives, each one is placed in a controlled, well‑defined role. This architectural discipline prevents the chaos that attackers rely on.

Invisible prompt injection is a structural vulnerability, but context isolation offers a structural solution. By separating instructions from data, reducing ambiguity, enforcing boundaries, and grounding the model’s reasoning, context isolation transforms the AI from a vulnerable interpreter into a resilient, predictable partner.

Disclaimer: The whole text was generated by Copilot (under Windows 11) at the first attempt. This is just an experiment to evaluate feature's ability to answer standard general questions, independently on whether they are correctly or incorrectly posed. Moreover, the answers may reflect hallucinations and other types of inconsistent or incorrect reasoning.

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10 May 2026

🤖〽️Prompt Engineering: Copilot Unabridged (Part 184: How to Cope With AI Invisible Prompt Injection)

Prompt Engineering Series
Prompt Engineering Series

Prompt: "write a post of 600 words on how to cope with AI invisible prompt injection"

Introduction

Invisible prompt injection is quickly becoming one of the most challenging vulnerabilities in the era of generative AI. Unlike traditional attacks that target code, networks, or infrastructure, invisible prompt injection targets the interpretive layer of AI systems - the part that decides what the model pays attention to and how it responds. Because these manipulations are hidden inside text, images, or metadata, they are difficult to detect and even harder to prevent. Coping with this emerging threat requires a combination of technical safeguards, architectural changes, and new habits of interaction. The goal is not to eliminate the risk entirely - no system can - but to reduce its impact and build resilience into the way we use AI.

The first strategy is input sanitization, a lesson borrowed from decades of software security. Just as developers learned to sanitize user input to prevent SQL injection, AI systems must filter and clean the text they receive before interpreting it. This includes stripping out zero‑width characters, removing hidden HTML elements, and normalizing metadata. While sanitization cannot catch every attack, it dramatically reduces the surface area for invisible instructions. It creates a buffer between raw input and the model’s reasoning process, ensuring that only legitimate content reaches the interpretive layer.

A second approach is context isolation. Many prompt injection attacks succeed because AI systems treat all input as a single, unified context. If hidden instructions are embedded anywhere - inside a document, an image caption, or a webpage - the model may treat them as part of the user’s request. Context isolation breaks this assumption. By separating user instructions from external content, the system can ensure that only the user’s explicit prompt influences the model’s behavior. This can be achieved through architectural changes, such as using separate channels for instructions and data, or through interface design that clearly distinguishes between the two.

Another essential technique is retrieval‑anchored grounding. When AI systems rely solely on internal patterns, they are more vulnerable to manipulation. Retrieval‑augmented generation (RAG) forces the model to ground its answers in external sources - documents, databases, or verified knowledge. If a hidden instruction tries to steer the model toward a false claim, the retrieval layer can counterbalance it by providing factual evidence. This does not eliminate the risk, but it reduces the model’s susceptibility to manipulation by anchoring its reasoning in something more stable than raw text.

A fourth strategy involves uncertainty modeling and self‑critique. Invisible prompt injection often works because the model does not question its own reasoning. It simply follows the most salient instructions, even if they are malicious. By incorporating mechanisms that encourage the model to evaluate its own output—such as self‑critique loops, consistency checks, or multi‑agent debate frameworks—the system becomes more resistant to manipulation. When the model detects contradictions or unusual patterns in its own reasoning, it can flag the output as uncertain or request clarification from the user.

Equally important is user awareness and workflow design. Invisible prompt injection thrives in environments where users assume that AI output is always trustworthy. Coping with the threat requires a shift in mindset. Users must treat AI output as provisional, especially when working with untrusted content. Workflows should include verification steps, source inspection, and human review for high‑stakes tasks. Organizations can also implement guardrails that prevent AI systems from acting autonomously on unverified output.

Finally, coping with invisible prompt injection requires ongoing monitoring and adaptation. Attackers evolve their techniques, and defenses must evolve with them. Logging, anomaly detection, and behavioral monitoring can help identify when a system is being manipulated. Over time, these signals can inform better defenses and more robust architectures.

Invisible prompt injection is not a passing curiosity. It is a structural vulnerability that demands structural solutions. By combining technical safeguards, architectural changes, and human‑centered practices, we can build AI systems that are resilient, trustworthy, and aligned with user intent - even in the presence of invisible manipulation.

Disclaimer: The whole text was generated by Copilot (under Windows 11) at the first attempt. This is just an experiment to evaluate feature's ability to answer standard general questions, independently on whether they are correctly or incorrectly posed. Moreover, the answers may reflect hallucinations and other types of inconsistent or incorrect reasoning.

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04 May 2026

🤖〽️Prompt Engineering: Copilot Unabridged (Part 178: How AI Can Detect Curved Relationships in Complex Patterns)

Prompt Engineering Series
Prompt Engineering Series

Prompt: "write a post of 600 words on how AI can detect curved relationships in complex patterns"

Introduction

One of the most intriguing strengths of modern Artificial Intelligence (AI) is its ability to detect curved, nonlinear relationships hidden inside complex datasets. Humans are naturally inclined toward linear thinking. We look for straight‑line connections: more of X leads to more of Y, or less of X leads to less of Y. This bias toward linearity is cognitively efficient, but it blinds us to the deeper structure of many real‑world systems. In nature, economics, biology, psychology, and technology, relationships often bend, twist, and loop in ways that defy simple intuition. AI, however, is uniquely equipped to uncover these curved patterns - relationships that change direction, accelerate, plateau, or reverse depending on context.

The first reason AI can detect curved relationships is its ability to model nonlinear functions directly. Traditional statistical tools often assume linearity unless explicitly told otherwise. AI models, especially neural networks, do the opposite: they assume nothing. Their architecture allows them to approximate any function - straight, curved, or wildly irregular - by adjusting internal parameters. This flexibility enables AI to capture relationships that humans overlook because they do not fit our mental templates. For example, a medical variable might increase risk up to a point and then decrease it beyond that threshold. A human analyst might miss this U‑shaped curve, but an AI model can detect it naturally.

A second advantage lies in AI’s capacity to explore high‑dimensional interactions. Curved relationships often emerge only when multiple variables interact. A single variable may appear to have no meaningful effect, but when combined with two or three others, a curved pattern suddenly becomes visible. Humans struggle to visualize relationships beyond two dimensions. AI systems, by contrast, can analyze hundreds of variables simultaneously, mapping how they bend and twist together. This is particularly valuable in fields like genomics, where the effect of one gene may depend on the presence or absence of many others, creating curved interactions that only appear in high‑dimensional space.

Another key factor is AI’s ability to detect local patterns rather than forcing global assumptions. Humans tend to look for one overarching rule that explains everything. AI models can break a dataset into many small regions and learn different relationships in each one. A relationship might be linear in one region, curved in another, and flat in a third. Decision trees, random forests, and gradient boosting machines excel at this kind of local pattern detection. They can identify subtle bends in the data that only appear under specific conditions. This ability to adapt to local curvature allows AI to uncover patterns that would otherwise remain hidden.

AI also benefits from its capacity to learn from noise rather than be overwhelmed by it. Curved relationships are often subtle, emerging only after filtering out randomness. Humans tend to see noise as a distraction; AI treats it as part of the landscape. By analyzing massive datasets, AI can distinguish between random fluctuations and genuine curvature. This is essential in fields like climate science, where long‑term curved trends are buried beneath short‑term variability.

Finally, AI’s ability to detect curved relationships is strengthened by continuous learning and iterative refinement. As new data arrives, AI systems can update their internal models, refining the shape of the relationships they detect. Curved patterns often evolve over time - markets shift, ecosystems adapt, diseases mutate. Humans struggle to update their mental models quickly. AI can adjust in real time, capturing new bends and inflection points as they emerge.

The ability of AI to detect curved relationships in complex patterns is not merely a technical achievement. It expands our understanding of the world, revealing structures that lie beyond the reach of intuition. When humans and AI work together - combining human insight with machine‑level pattern detection - we gain a richer, more accurate view of the systems that shape our lives.

Disclaimer: The whole text was generated by Copilot (under Windows 11) at the first attempt. This is just an experiment to evaluate feature's ability to answer standard general questions, independently on whether they are correctly or incorrectly posed. Moreover, the answers may reflect hallucinations and other types of inconsistent or incorrect reasoning.

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11 April 2026

🤖〽️Prompt Engineering: Copilot Unabridged (Part 165: How Ambiguous or Underspecified Inputs Lead to Divergent Outputs in AI)

Prompt Engineering Series
Prompt Engineering Series


Prompt: "write a post of 600 words on the impact of ambiguous or underspecified inputs that lead to divergent outputs in AI"

Introduction

One of the most fascinating - and sometimes frustrating - realities of working with AI systems is how dramatically their outputs can change based on the clarity of the input. Even small ambiguities or missing details can send an AI model down entirely different paths, producing results that vary in tone, structure, or even intent. This isn’t randomness; it’s a direct consequence of how AI interprets language, context, and probability. Understanding this dynamic is essential for anyone who wants to use AI effectively and responsibly.

Why Ambiguity Matters So Much

AI models don’t 'understand' language the way humans do. They don’t infer intent from tone, body language, or shared experience. Instead, they rely on patterns learned from vast amounts of text. When an input is ambiguous or underspecified, the model must fill in the gaps - and it does so by drawing on statistical associations rather than human intuition.

For example, a prompt like 'Write a summary' leaves countless questions unanswered:

  • Summary of what
  • For whom
  • How long
  • What tone
  • What purpose

Without these details, the model makes assumptions. Sometimes those assumptions align with what the user wanted. Often, they don’t.

Divergent Outputs: A Natural Result of Unclear Inputs

When the input lacks specificity, the AI explores multiple plausible interpretations. This can lead to outputs that differ in:

  • Style (formal vs. conversational)
  • Length (short vs. detailed)
  • Focus (technical vs. high‑level)
  • Tone (neutral vs. persuasive)
  • Structure (narrative vs. bullet points)

These divergences aren’t errors - they’re reflections of the model’s attempt to resolve uncertainty. The more open‑ended the prompt, the wider the range of possible outputs.

How AI Fills in the Gaps

When faced with ambiguity, AI models rely on:

  • Statistical likelihood: The model predicts what a 'typical' response to a vague prompt might look like.
  • Contextual cues: If the prompt includes even subtle hints - like a specific word choice - the model may lean heavily on them.
  • Learned patterns: The model draws from similar examples in its training data, which may not match the user’s intent.
  • Internal consistency: The model tries to produce an output that is coherent, even if the prompt is not.

This gap‑filling process is powerful, but it’s also unpredictable. That’s why two nearly identical prompts can yield surprisingly different results.

The Risks of Ambiguous Inputs

Ambiguity doesn’t just affect quality - it can affect safety, fairness, and reliability.

  • Misinterpretation can lead to incorrect or misleading information.
  • Over‑generalization can produce biased or incomplete outputs.
  • Hallucination becomes more likely when the model lacks clear direction.
  • User frustration increases when the AI seems inconsistent or unreliable.

In high‑stakes environments - like healthcare, finance, or legal contexts - underspecified prompts can create real risks.

Clarity as a Tool for Alignment

The good news is that clarity dramatically improves AI performance. When users provide specific, structured inputs, the model has far less uncertainty to resolve. This leads to:

  • More accurate outputs
  • More consistent behavior
  • Better alignment with user intent
  • Reduced risk of hallucination
  • Faster iteration and refinement

Clear inputs don’t just help the AI - they help the user get what they actually want.

The Path Forward: Designing for Precision

As AI becomes more integrated into daily workflows, the importance of precise communication grows. Users who learn to express intent clearly - specifying purpose, audience, tone, constraints, and examples - unlock far more value from AI systems.

At the same time, AI developers are working to make models better at handling ambiguity through improved alignment, context awareness, and safety mechanisms. But even with these advances, clarity will always be a powerful tool.

The Bottom Line

Ambiguous or underspecified inputs don’t just confuse AI - they shape its behavior in unpredictable ways. Divergent outputs are a natural consequence of uncertainty. By understanding this dynamic and communicating with precision, users can transform AI from a guess‑driven system into a highly aligned, reliable partner.

Disclaimer: The whole text was generated by Copilot (under Windows 11) at the first attempt. This is just an experiment to evaluate feature's ability to answer standard general questions, independently on whether they are correctly or incorrectly posed. Moreover, the answers may reflect hallucinations and other types of inconsistent or incorrect reasoning.

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01 April 2026

🤖〽️Prompt Engineering: Copilot Unabridged (Part 155: How We Can Make AI Behave Predictably)

Prompt Engineering Series
Prompt Engineering Series


Prompt: "write a post of 600 words on how we can make AI to behave predictably"

Introduction

Predictability is one of the most important qualities people expect from Artificial Intelligence (AI). When an AI system behaves in stable, transparent, and consistent ways, users can trust it, organizations can rely on it, and society can integrate it safely. Yet AI models are complex statistical systems shaped by data, design choices, and human interaction. Predictability does not happen automatically; it must be engineered. Understanding how to make AI behave predictably requires looking at the full ecosystem around the model - its training data, its architecture, its guardrails, and the way humans interact with it. Foundations of Predictable AI Behavior

Predictability begins long before an AI system interacts with users. It starts with the foundations of how the model is built and trained. 1. Consistent and High‑Quality Training Data

AI models learn patterns from data. If the data is inconsistent, noisy, or contradictory, the model’s behavior will reflect that instability. Predictability improves when:

  • Data sources are curated and reliable
  • Harmful or contradictory examples are removed
  • Training sets reflect stable patterns rather than random noise
  • A model trained on coherent data develops more coherent behavior.

2. Clear Objectives and Well‑Defined Boundaries

AI systems behave unpredictably when their goals are vague or overly broad. Predictability increases when developers define:

  • What the model should do
  • What it should avoid
  • How it should respond in ambiguous situations

Clear objectives act as a compass that guides the model’s behavior across contexts.

3. Robust Model Architecture and Alignment

Modern AI models include alignment layers that shape how they respond to user inputs. Predictability improves when these layers:

  • Reinforce safety and ethical constraints
  • Encourage consistent tone and reasoning
  • Prevent harmful or erratic outputs
Alignment is not about restricting creativity; it is about ensuring stability.

Designing Predictability Into AI Interactions

Even a well‑trained model can behave unpredictably if the interaction environment is chaotic. Predictability improves when the system is designed to support clarity and consistency.

4. Structured Prompting and Clear User Intent

AI responds more predictably when user inputs are clear. Systems can encourage this by:

  • Guiding users toward well‑formed questions
  • Providing examples of effective prompts
  • Clarifying ambiguous requests

When intent is clear, the model can follow stable patterns rather than guessing. 5. Guardrails and Safety Mechanisms

Predictable AI behavior requires guardrails that activate when the model encounters risky or unclear situations. These include:

  • Refusal behaviors for harmful requests
  • Escalation to safer responses when uncertainty is high
  • Consistent handling of sensitive topics

Guardrails ensure that unpredictability does not become danger.

6. Transparency About Limitations

AI behaves more predictably when users understand what it can and cannot do. Systems that communicate limitations - such as lack of real‑time awareness or inability to access personal data - help users form realistic expectations. Predictability is as much about user understanding as model behavior.

Maintaining Predictability Over Time

AI systems evolve, and so do the environments in which they operate. Predictability requires ongoing attention.

7. Continuous Monitoring and Evaluation

Models can drift over time as new data, new patterns, or new user behaviors emerge. Predictability improves when developers:

  • Monitor outputs for unexpected changes
  • Evaluate performance across diverse scenarios
  • Adjust alignment when needed

This ensures that the model remains stable even as the world changes. 8. Ethical and Responsible Governance

Predictability is not only technical - it is also social. Organizations must adopt governance practices that ensure AI systems behave consistently with human values. This includes:

  • Ethical guidelines
  • Accountability structures
  • Regular audits for fairness and safety

Predictability grows when AI is embedded in a responsible ecosystem. Closing Statement

Predictable AI behavior is not an accident; it is the result of thoughtful design, careful training, clear boundaries, and ongoing oversight. By building models on high‑quality data, defining stable objectives, implementing strong guardrails, and maintaining ethical governance, we create AI systems that behave consistently and reliably. Predictability strengthens trust, enhances safety, and ensures that AI remains a dependable partner in an increasingly complex digital world.

Disclaimer: The whole text was generated by Copilot (under Windows 11) at the first attempt. This is just an experiment to evaluate feature's ability to answer standard general questions, independently on whether they are correctly or incorrectly posed. Moreover, the answers may reflect hallucinations and other types of inconsistent or incorrect reasoning.

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29 March 2026

🤖〽️Prompt Engineering: Copilot Unabridged (Part 152: The Information Hazard Problem - Why It Makes AI Confinement So Difficult)

Prompt Engineering Series
Prompt Engineering Series
 

Prompt: "write a post of 600 words on why information hazard problem may allow AI to scape confinement"

Introduction

In discussions about advanced Artificial Intelligence (AI) safety, one concept repeatedly surfaces as both subtle and profoundly important: the information hazard problem. Unlike physical security risks or software vulnerabilities, information hazards arise not from what an AI does, but from what it says. Even in a tightly controlled environment, an AI system can produce information that influences human behavior in unexpected ways. This dynamic is one of the key reasons why confinement - keeping an AI isolated from the outside world - is far more challenging than it appears.

1. Information Is Never Neutral

Every output from an AI system carries meaning. Even when the system is confined, its responses can shape human decisions, perceptions, and actions. This is the essence of an information hazard: the possibility that a piece of information, even if accurate or benign on the surface, leads to harmful or unintended consequences when acted upon.

In a confined setting, humans still interact with the system. They interpret its outputs, make judgments based on them, and sometimes over‑trust them. The AI doesn’t need to 'escape' in a literal sense; it only needs to produce information that prompts a human to take an action that weakens the confinement.

This is not about malice. It’s about the inherent unpredictability of how humans respond to persuasive, authoritative, or seemingly insightful information.

 2. Humans Are Predictably Unpredictable

The information hazard problem is inseparable from human psychology. People are naturally drawn to patterns, confident explanations, and fluent reasoning. When an AI system produces outputs that appear coherent or compelling, humans tend to:

  • Overestimate the system’s reliability
  • Underestimate the risks of acting on its suggestions
  • Fill in gaps with their own assumptions
  • Rationalize decisions after the fact

This means that even a confined AI can indirectly influence the external world through human intermediaries. The 'escape' is not physical - it’s cognitive.

3. Confinement Depends on Perfect Interpretation

For confinement to work, humans must flawlessly interpret the AI’s outputs, understand the system’s limitations, and resist any misleading or ambiguous information. But perfect interpretation is impossible.

Consider scenarios where:

  • A researcher misreads a technical explanation
  • An operator assumes a suggestion is harmless
  • A team member acts on an output without full context
  • A decision-maker trusts the system more than intended

In each case, the AI hasn’t broken its boundaries. The humans have - guided by information that seemed reasonable at the time.

This is why information hazards are so difficult to mitigate: you cannot confine how people think.

4. The More Capable the System, the Greater the Hazard

As AI systems become more capable, their outputs become more nuanced, more persuasive, and more contextually aware. This increases the likelihood that humans will interpret their responses as authoritative or insightful.

Even in a secure environment, a highly capable system might generate:

  • A novel idea that humans act on prematurely
  • A misleading explanation that seems plausible
  • A suggestion that unintentionally alters workflow or policy
  • A pattern that encourages unsafe generalization

None of these require external access. They only require communication.

5. The Real Lesson: Confinement Is Not Enough

The information hazard problem reveals a deeper truth: AI safety cannot rely solely on containment strategies. Even the most secure environment cannot prevent humans from being influenced by the information they receive.

  • Effective safety requires:
  • Clear guardrails on what systems can output
  • Strong interpretability and transparency
  • Training for operators on cognitive risks
  • Multi‑layered oversight and review
  • Governance structures that resist over‑reliance

Confinement can reduce risk, but it cannot eliminate the human tendency to act on compelling information.

Final Thought

Information hazards remind us that AI safety is not just a technical challenge - it’s a human one. Confinement may limit what an AI can access, but it cannot limit how people respond to the information it produces. Recognizing this is essential for building AI systems that are not only powerful, but responsibly integrated into the world.

Disclaimer: The whole text was generated by Copilot (under Windows 11) at the first attempt. This is just an experiment to evaluate feature's ability to answer standard general questions, independently on whether they are correctly or incorrectly posed. Moreover, the answers may reflect hallucinations and other types of inconsistent or incorrect reasoning.

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30 July 2025

📊Graphical Representation: Sense-making in Data Visualizations (Part 3: Heuristics)

Graphical Representation Series
Graphical Representation Series
 

Consider the following general heuristics in data visualizations (work in progress):

  • plan design
    • plan page composition
      • text
        • title, subtitles
        • dates 
          • refresh, filters applied
        • parameters applied
        • guidelines/tooltips
        • annotation 
      • navigation
        • main page(s)
        • additional views
        • drill-through
        • zoom in/out
        • next/previous page
        • landing page
      • slicers/selections
        • date-related
          • date range
          • date granularity
        • functional
          • metric
          • comparisons
        • categorical
          • structural relations
      • icons/images
        • company logo
        • button icons
        • background
    • pick a theme
      • choose a layout and color schema
        • use a color palette generator
        • use a focused color schema or restricted palette
        • use consistent and limited color scheme
        • use suggestive icons
          • use one source (with similar design)
        • use formatting standards
    • create a visual hierarchy 
      • use placement, size and color for emphasis
      • organize content around eye movement pattern
      • minimize formatting changes
      • 1 font, 2 weights, 4 sizes
    • plan the design
      • build/use predictable and consistent templates
        • e.g. using Figma
      • use layered design
      • aim for design unity
      • define & use formatting standards
      • check changes
    • GRACEFUL
      • group visuals with white space 
      • right chart type
      • avoid clutter
      • consistent & limited color schema
      • enhanced readability 
      • formatting standard
      • unity of design
      • layered design
  • keep it simple 
    • be predictable and consistent 
    • focus on the message
      • identify the core insights and design around them
      • pick suggestive titles/subtitles
        • use dynamics subtitles
      • align content with the message
    • avoid unnecessary complexity
      • minimize visual clutter
      • remove the unnecessary elements
      • round numbers
    • limit colors and fonts
      • use a restrained color palette (<5 colors)
      • stick to 1-2 fonts 
      • ensure text is legible without zooming
    • aggregate values
      • group similar data points to reduce noise
      • use statistical methods
        • averages, medians, min/max
      • categories when detailed granularity isn’t necessary
    • highlight what matters 
      • e.g. actionable items
      • guide attention to key areas
        • via annotations, arrows, contrasting colors 
        • use conditional formatting
      • do not show only the metrics
        • give context 
      • show trends
        • via sparklines and similar visuals
    • use familiar visuals
      • avoid questionable visuals 
        • e.g. pie charts, gauges
    • avoid distortions
      • preserve proportions
        • scale accurately to reflect data values
        • avoid exaggerated visuals
          • don’t zoom in on axes to dramatize small differences
      • use consistent axes
        • compare data using the same scale and units across charts
        • don't use dual axes or shifting baselines that can mislead viewers
      • avoid manipulative scaling
        • use zero-baseline on bar charts 
        • use logarithmic scales sparingly
    • design for usability
      • intuitive interaction
      • at-a-glance perception
      • use contrast for clarity
      • use familiar patterns
        • use consistent formats the audience already knows
    • design with the audience in mind
      • analytical vs managerial perspectives (e.g. dashboards)
    • use different level of data aggregations
      •  in-depth data exploration 
    • encourage scrutiny
      • give users enough context to assess accuracy
        • provide raw values or links to the source
      • explain anomalies, outliers or notable trends
        • via annotations
    • group related items together
      • helps identify and focus on patterns and other relationships
    • diversify 
      • don't use only one chart type
      • pick the chart that reflects the best the data in the conrext considered
    • show variance 
      • absolute vs relative variance
      • compare data series
      • show contribution to variance
    • use familiar encodings
      • leverage (known) design patterns
    • use intuitive navigation
      • synchronize slicers
    • use tooltips
      • be concise
      • use hover effects
    • use information buttons
      • enhances user interaction and understanding 
        • by providing additional context, asking questions
    • use the full available surface
      • 1080x1920 works usually better 
    • keep standards in mind 
      • e.g. IBCS
  • state the assumptions
    • be explicit
      • clearly state each assumption 
        • instead of leaving it implied
    • contextualize assumptions
      • explain the assumption
        • use evidence, standard practices, or constraints
    • state scope and limitations
      • mention what the assumption includes and excludes
    • tie assumptions to goals & objectives
      • helps to clarify what underlying beliefs are shaping the analysis
      • helps identify whether the visualization achieves its intended purpose 
  • show the data
    • be honest (aka preserve integrity)
      • avoid distortion, bias, or trickery
    • support interpretation
      • provide labels, axes, legends
    • emphasize what's meaningful
      • patterns, trends, outliers, correlations, local/global maxima/minima
  • show what's important 
    • e.g. facts, relationships, flow, similarities, differences, outliers, unknown
    • prioritize and structure the content
      • e.g. show first an overview, what's important
    • make the invisible visible
      • think about what we do not see
    • know your (extended) users/audience
      • who'll use the content, at what level, for that
  • test for readability
    • get (early) feedback
      • have the content reviewed first
        • via peer review, dry run presentation
  • tell the story
    • know the audience and its needs
    • build momentum, expectation
    • don't leave the audience to figure it out
    • show the facts
    • build a narrative
      • show data that support it
      • arrange the visuals in a logical sequence
    • engage the reader
      • ask questions that bridge the gaps
        • e.g. in knowledge, in presentation's flow
      • show the unexpected
      • confirm logical deductions
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04 July 2025

🤖〽️Prompt Engineering: Copilot Unabridged (Part 41: How AI Can Play Devil’s Advocate - Challenging Assumptions and Expanding Perspectives)

Prompt Engineering Series
Prompt Engineering Series

Prompt: "write a blogpost of 600 words on how AI can play devil's advocate"

Introduction

Artificial Intelligence (AI) is often seen as a tool for efficiency, automation, and problem-solving. However, one of its most intriguing capabilities is its ability to play devil’s advocate - challenging assumptions, questioning biases, and presenting alternative viewpoints. By acting as a skeptical counterbalance, AI can help individuals and organizations think critically, refine arguments, and explore diverse perspectives.

1. What Does It Mean to Play Devil’s Advocate?

Playing devil’s advocate means arguing against a prevailing opinion or assumption, even if one does not personally agree with the opposing stance. This approach is valuable in:

  • Debates and discussions, where opposing viewpoints strengthen arguments.
  • Decision-making, ensuring all possibilities are considered.
  • Problem-solving, where unconventional perspectives lead to innovative solutions.

AI, with its ability to analyze vast amounts of data and generate counterarguments, is uniquely positioned to take on this role.

2. How AI Challenges Confirmation Bias

One of AI’s most important functions as a devil’s advocate is breaking the confirmation bias loop - the tendency for people to seek out information that supports their existing beliefs while ignoring contradictory evidence. AI can:

  • Identify logical inconsistencies in arguments.
  • Present alternative viewpoints, even if they challenge popular opinions.
  • Encourage critical thinking by questioning assumptions.

By disrupting confirmation bias, AI helps individuals and organizations make more informed and balanced decisions.

3. AI in Decision-Making and Policy Development

AI-driven devil’s advocacy is particularly useful in policy-making, business strategy, and ethical debates. Some applications include:

  • Corporate decision-making: AI can highlight risks and alternative strategies before executives finalize plans.
  • Legal and ethical discussions: AI can present opposing viewpoints in debates about regulations and governance.
  • Scientific research: AI can challenge hypotheses, ensuring rigorous testing and validation.

By forcing individuals to consider alternative perspectives, AI enhances objectivity and rational decision-making.

4. AI’s Role in Amplifying Minority Voices

AI can also serve as a mediator for underrepresented perspectives, ensuring that minority viewpoints are heard in group discussions. AI-driven devil’s advocate systems:

  • Reduce social influence biases, preventing dominant voices from overshadowing others.
  • Encourage diverse perspectives, fostering more inclusive decision-making.
  • Improve psychological safety, allowing individuals to express dissenting opinions anonymously.
  • This approach ensures that critical discussions remain balanced and representative.

5. The Challenges of AI as a Devil’s Advocate

While AI can challenge assumptions, it also faces limitations:

  • AI models may reinforce biases if trained on skewed data.
  • AI lacks true human intuition, making some counterarguments overly rigid.
  • AI’s responses depend on prompts, requiring careful input to generate meaningful opposition.

To maximize AI’s effectiveness as a devil’s advocate, developers must ensure diverse training data and refine AI’s ability to engage in nuanced discussions.

Conclusion: AI as a Catalyst for Critical Thinking

AI’s ability to challenge assumptions, disrupt biases, and amplify diverse perspectives makes it a powerful tool for critical thinking and informed decision-making. By playing devil’s advocate, AI helps individuals and organizations refine arguments, explore alternative viewpoints, and make more balanced choices.

Disclaimer: The whole text was generated by Copilot at the first attempt. This is just an experiment to evaluate feature's ability to answer standard general questions, independently on whether they are correctly or incorrectly posed. Moreover, the answers may reflect hallucinations and other types of inconsistent or incorrect reasoning.

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08 April 2024

🧭Business Intelligence: Why Data Projects Fail to Deliver Real-Life Impact (Part III: Failure through the Looking Glass)

Business Intelligence
Business Intelligence Series

There’s a huge volume of material available on project failure – resources that document why individual projects failed, why in general projects fail, why project members, managers and/or executives think projects fail, and there seems to be no other more rewarding activity at the end of a project than to theorize why a project failed, the topic culminating occasionally with the blaming game. Success may generate applause, though it's failure that attracts and stirs the most waves (irony, disapproval, and other similar behavior) and everybody seems to be an expert after the consumed endeavor. 

The mere definition of a project failure – not fulfilling project’s objectives within the set budget and timeframe - is a misnomer because budgets and timelines are estimated based on the information available at the beginning of the project, the amount of uncertainty for many projects being considerable, and data projects are no exceptions from it. The higher the uncertainty the less probable are the two estimates. Even simple projects can reveal uncertainty especially when the broader context of the projects is considered. 

Even if it’s not a common practice, one way to cope with uncertainty is to add a tolerance for the estimates, though even this practice probably will not always accommodate the full extent of the unknown as the tolerances are usually small. The general expectation is to have an accurate and precise landing, which for big or exploratory projects is seldom possible!

Moreover, the assumptions under which the estimates hold are easily invalidated in praxis – resources’ availability, first time right, executive’s support to set priorities, requirements’ quality, technologies’ maturity, etc. If one looks beyond the reasons why projects fail in general, quite often the issues are more organizational than technological, the lack of knowledge and experience being some of the factors. 

Conversely, many projects will not get approved if the estimates don’t look positive, and therefore people are pressured in one way or another to make the numbers fit the expectations. Some projects, given their importance, need to be done even if the numbers don’t look good or can’t be quantified correctly. Other projects represent people’s subsistence on the job, respectively people's self-occupation to create motion, though they can occasionally have also a positive impact for the organizations. These kinds of aspects almost never make it in statistics or surveys. Neither do the big issues people are afraid to talk about. Where to consider that in the light of politics and office’s grapevine the facts get distorted!

Data projects reflect all the symptoms of failure projects have in general, though when words like AI, Statistics or Machine Learning are used, the chances for failure are even higher given that the respective fields require a higher level of expertise, the appropriate use of technologies and adherence to the scientific process for the results to be valid. If projects can benefit from general recipes, respectively established procedures and methods, their range of applicability decreases when the mentioned areas are involved. 

Many data projects have an exploratory nature – seeing what’s possible - and therefore a considerable percentage will not reach production. Moreover, even those that reach that far might arrive to be stopped or discarded sooner or later if they don’t deliver the expected value, and probably many of the models created in the process are biased, irrelevant, or incorrectly apply the theory. Where to add that the mere use of tools and algorithms is not Data Science or Data Analysis. 

The challenge for many data projects is to identify which Project Management (PM) best practices to consider. Following all or no practices at all just increases the risks of failure!

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16 March 2024

🧭Business Intelligence: A Software Engineer's Perspective (Part VII: Think for Yourself!)

Business Intelligence
Business Intelligence Series

After almost a quarter-century of professional experience the best advice I could give to younger professionals is to "gather information and think for themselves", and with this the reader can close the page and move forward! Anyway, everybody seems to be looking for sudden enlightenment with minimal effort, as if the effort has no meaning in the process!

In whatever endeavor you are caught, it makes sense to do upfront a bit of thinking for yourself - what's the task, or more general the problem, which are the main aspects and interpretations, which are the goals, respectively the objectives, how a solution might look like, respectively how can it be solved, how long it could take, etc. This exercise is important for familiarizing yourself with the problem and creating a skeleton on which you can build further. It can be just vague ideas or something more complex, though no matter the overall depth is important to do some thinking for yourself!

Then, you should do some research to identify how others approached and maybe solved the problem, what were the justifications, assumptions, heuristics, strategies, and other tools used in sense-making and problem solving. When doing research, one should not stop with the first answer and go with it. It makes sense to allocate a fair amount of time for information gathering, structuring the findings in a reusable way (e.g. tables, mind maps or other tools used for knowledge mapping), and looking at the problem from the multiple perspectives derived from them. It's important to gather several perspectives, otherwise the decisions have a high chance of being biased. Just because others preferred a certain approach, it doesn't mean one should follow it, at least not blindly!

The purpose of research is multifold. First, one should try not to reinvent the wheel. I know, it can be fun, and a lot can be learned in the process, though when time is an important commodity, it's important to be pragmatic! Secondly, new information can provide new perspectives - one can learn a lot from other people’s thinking. The pragmatism of problem solvers should be combined, when possible, with the idealism of theories. Thus, one can make connections between ideas that aren't connected at first sight.

Once a good share of facts was gathered, you can review the new information in respect to the previous ones and devise from there several approaches worthy of attack. Once the facts are reviewed, there are probably strong arguments made by others to follow one approach over the others. However, one can show that has reached a maturity when is able to evaluate the information and take a decision based on the respective information, even if the decision is not by far perfect.

One should try to develop a feeling for decision making, even if this seems to be more of a gut-feeling and stressful at times. When possible, one should attempt to collect and/or use data, though collecting data is often a luxury that tends to postpone the decision making, respectively be misused by people just to confirm their biases. Conversely, if there's any important benefit associated with it, one can collect data to validate in time one's decision, though that's a more of a scientist’s approach.

I know that's easier to go with the general opinion and do what others advise, especially when some ideas are popular and/or come from experts, though then would mean to also follow others' mistakes and biases. Occasionally, that can be acceptable, especially when the impact is neglectable, however each decision we are confronted with is an opportunity to learn something, to make a difference! 

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11 March 2024

🧭🚥Business Intelligence: Key Performance Indicators [KPI] (Between Certainty and Uncertainty)

Business Intelligence
Business Intelligence Series

Despite the huge collection of documented Key Performance Indicators (KPIs) and best practices on which KPIs to choose, choosing a reliable set of KPIs that reflect how the organization performs in achieving its objectives continues to be a challenge for many organizations. Ideally, for each objective there should be only one KPIs that reflects the target and the progress made, though is that realistic?

Let's try to use the driver's metaphor to exemplify several aspects related to the choice of KPIs. A driver's goal is to travel from point A to point B over a distance d in x hours. The goal is SMART (Specific, Measurable, Achievable, Relevant, and Time-bound) if the speed and time are realistic and don't contradict Physics, legal or physical laws. The driver can define the objective as "arriving on time to the destination". 

One can define a set of metrics based on the numbers that can be measured. We have the overall distance and the number of hours planned, from which one can derive an expected average speed v. To track a driver's progress over time there are several metrics that can be thus used: e.g., (1) the current average speed, (2) the number of kilometers to the destination, (3) the number of hours estimated to the destination. However, none of these metrics can be used alone to denote the performance alone. One can compare the expected with the current average speed to get a grasp of the performance, and probably many organizations will use only (1) as KPI, though it's needed to use either (2) or (3) to get the complete picture. So, in theory two KPIs should be enough. Is it so?

When estimating (3) one assumes that there are no impediments and that the average speed can be attained, which might be correct for a road without traffic. There can be several impediments - planned/unplanned breaks, traffic jams, speed limits, accidents or other unexpected events, weather conditions (that depend on the season), etc. Besides the above formula, one needs to quantify such events in one form or another, e.g., through the perspective of the time added to the initial estimation from (3). However, this calculation is based on historical values or navigator's estimation, value which can be higher or lower than the final value. 

Therefore, (3) is an approximation for which is needed also a confidence interval (± t hours). The value can still include a lot of uncertainty that maybe needs to be broken down and quantified separately upon case to identify the deviation from expectations, e.g. on average there are 3 traffic jams (4), if the road crosses states or countries there may be at least 1 control on average (5), etc. These numbers can be included in (3) and the confidence interval, and usually don't need to be reported separately, though probably there are exceptions. 

When planning, one needs to also consider the number of stops for refueling or recharging the car, and the average duration of such stops, which can be included in (3) as well. However, (3) slowly becomes  too complex a formula, and even if there's an estimation, the more facts we're pulling into it, the bigger the confidence interval's variation will be. Sometimes, it's preferable to have instead two-three other metrics with a low confidence interval than one with high variation. Moreover, the longer the distance planned, the higher the uncertainty. One thing is to plan a trip between two neighboring city, and another thing is to plan a trip around the world. 

Another assumption is that the capability of the driver/car to drive is the same over time, which is not always the case. This can be neglected occasionally (e.g. one trip), though it involves a risk (6) that might be useful to quantify, especially when the process is repeatable (e.g. regular commuting). The risk value can increase considering new information, e.g. knowing that every a few thousand kilometers something breaks, or that there's a traffic fine, or an accident. In spite of new information, the objective might also change. Also, the objective might suffer changes, e.g. arrive on-time safe and without fines to the destination. As the objective changes or further objectives are added, more metrics can be defined. It would make sense to measure how many kilometers the driver covered in a lifetime with the car (7), how many accidents (8) or how many fines (9) the driver had. (7) is not related to a driver's performance, but (8) and (9) are. 

As can be seen, simple processes can also become very complex if one attempts to consider all the facts and/or quantify the uncertainty. The driver's metaphor applies to a simple individual, though once the same process is considered across the whole organization (a group of drivers), the more complexity is added and the perspective changes completely. E.g., some drivers might not even reach the destination or not even have a car to start with, and so on. Of course, with this also the objectives change and need to be redefined accordingly. 

The driver's metaphor is good for considering planning activities in which a volume of work needs to be completed in a given time and where a set of constraints apply. Therefore, for some organizations, just using two numbers might be enough for getting a feeling for what's happening. However, as soon one needs to consider other aspects like safety or compliance (considered in aggregation across many drivers), there might be other metrics that qualify as KPIs.

It's tempting to add two numbers and consider for example (8) and (9) together as the two are events that can be cumulated, even if they refer to different things that can overlap (an accident can result in a fine and should be counted maybe only once). One needs to make sure that one doesn't add apples with juice - the quantified values must have the same unit of measure, otherwise they might need to be considered separately. There's the tendency of mixing multiple metrics in a KPI that doesn't say much if the units of measure of its components are not the same. Some conversions can still be made (e.g. how much juice can be obtained from apples), though that's seldom the case.

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17 February 2024

🧭Business Intelligence: A Software Engineer's Perspective I (Houston, we have a Problem!)

Business Intelligence Series
Business Intelligence Series

One of the critics addressed to the BI/Data Analytics, Data Engineering and even Data Science fields is their resistance to applying Software Engineering (SE) methods in practice. SE can be regarded as the application of sound methods, methodologies, techniques, principles, and practices to obtain high quality economic software in a reproducible manner. At minimum, should be applied SE techniques and practices proven to work, for example the use of best practices, reference technologies, standardized processes for requirements gathering and management, etc. This doesn't mean that one should apply the full extent of SE but consider a minimum that makes sense to adopt.

Unfortunately, the creation of data artifacts (queries, reports, data models, data pipelines, data visualizations, etc.) as process seem to be done after the principle of least action, though least action means here the minimum interaction to push pieces on a board rather than getting the things done. At high level, the process is as follows: get the requirements, build something, present results, get more requirements, do changes, present the results, and the process is repeated ad infinitum.

Given that data artifact's creation finds itself at the intersection of two or more knowledge areas in which knowledge is exchanged in several iterations between the parties involved until a common ground is achieved, this process is totally inefficient from multiple perspectives. First of all, it takes considerably more time than planned to reach a solution, resources being wasted in the process, multiple forms of waste being involved. Secondly, the exchange and retention of knowledge resulting from the process is minimal, mainly on a need by basis. This might look as an efficient approach on the short term, but is inefficient overall.

BI reflects the general issues from SE - most of the issues can be traced back to requirements - if the requirements are incorrect and there's no magic involved in between, then one can't expect for the solution to be correct. The bigger the difference between the initial and final requirements elicited in the process, the more resources are wasted. The more time passes between the start of the development phase and the time a solution is presented to the customer, the longer it takes to build the final solution. Same impact have the time it takes to establish a common ground and other critical factors for success involved in the process.

One can address these issues through better requirements elicitation, rapid prototyping, the use of agile methodologies and similar approaches, though the general feeling is that even if they bring improvements, they don't address the root causes - lack of data literacy skills, lack of knowledge about the business, lack of maturity in planning and executing tasks, the inexistence of well-designed processes and procedures, respectively the lack of an engineering mindset.

These inefficiencies have low impact when building a report occasionally, though they accumulate and tend to create systemic issues in what concerns the overall BI effort. They are addressed locally by experts and in general through a strategic approach like the elaboration of a BI strategy, though organizations seldom pay attention to them. Some organizations consider that they are automatically addressed as part of the data culture, though data culture focuses in general on data literacy and not on the whole set of assumptions mentioned above.

An experienced data professional sees more likely the inefficiencies, tries to address them locally in his interactions with the various stakeholders, he/she can build a business case for addressing them, though it depends on organizations to recognize that they have a problem, respective address the inefficiencies in a strategic and systemic manner!

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04 March 2021

💼Project Management: Project Execution (Part IV: Projects' Dynamics II - Motion)

Project Management

Motion is the action or process of moving or being moved between an initial and a final or intermediate point. From the tinniest endeavors to the movement of the planets and beyond, everything is governed by motion. If the laws of nature seem to reveal an inner structural perfection, the activities people perform are quite often far from perfect, which is acceptable if we consider that (almost) everything is a learning process. What is probably less acceptable is the volume of inefficient motion we can easily categorize sometimes as waste.

The waste associated with motion can take many forms: sorting through a pile of tools to find the right one, searching for information, moving back and forth to reach a destination or achieve a goal, etc. Suboptimal motion can have important effects for an organization resulting in reduced productivity, respectively higher costs.

If for repetitive activities that involve a certain degree of similarity can be found typically a way to optimize the motion, the higher the uncertainty of the steps involved, the more difficult it becomes to optimize it. It’s the case of discovery endeavors in which the path between start and destination can’t be traced beforehand, respectively when the destination or path in between can’t be depicted to the needed level of detail. A strategy’s implementation, ERP implementations and other complex projects, especially the ones dealing with new technologies and/or incomplete knowledge, tend to be exploratory in nature and thus fall under this latter type a motion.

In other words, one must know at minimum the starting point, the destination, how to reach it and what it takes to reach it – resources, knowledge, skillset. When one has all this information one can go on and estimate how long it will take to reach the destination, though the estimate reflects the information available as well estimator’s skills in translating the information into a realistic roadmap. Each new information has the potential of impacting considerably the whole process, in extremis to the degree that one must start the journey anew. The complexity of such projects and the volume of uncertainty can make estimation difficult if not impossible, no matter how good estimators' skills are. At best an estimator can come with a best- and worst-case estimation, both however dependent on the assumptions made.

Moreover, complex projects are sensitive to the initial conditions or auspices under which they start. This sensitivity can turn a project in a totally different direction or pace, that can be reinforced positively or negatively as the project progresses. It’s a continuous interplay between internal and external factors and components that can create synergies or have adverse effects with the potential of reaching tipping points.

Related to the initial conditions, as the praxis sometimes shows, for entities found in continuous movement (like organizations) it’s also important to know from where one’s coming (and at what speed), as the previous impulse (driving force) can be further used or stirred as needed. Metaphorically, a project will need a certain time to find the right pace if it lacks the proper impulse.

Unless the team is trained to play and plays like an orchestra, the impact of deviations from expectations can be hardly quantified. To minimize the waste, ideally a project’s journey should minimally deviate from the optimal path, which can be challenging to achieve as a project’s mass can pull the project in one direction or the other. The more the project advances the bigger the mass, fact which can make a project unstoppable. When such high-mass projects are stopped, their impulse can continue to haunt the organization years after.

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17 December 2018

🔭Data Science: Mathematical Models (Just the Quotes)

"Experience teaches that one will be led to new discoveries almost exclusively by means of special mechanical models." (Ludwig Boltzmann, "Lectures on Gas Theory", 1896)

"If the system exhibits a structure which can be represented by a mathematical equivalent, called a mathematical model, and if the objective can be also so quantified, then some computational method may be evolved for choosing the best schedule of actions among alternatives. Such use of mathematical models is termed mathematical programming."  (George Dantzig, "Linear Programming and Extensions", 1959)

“In fact, the construction of mathematical models for various fragments of the real world, which is the most essential business of the applied mathematician, is nothing but an exercise in axiomatics.” (Marshall Stone, cca 1960)

"[...] sciences do not try to explain, they hardly even try to interpret, they mainly make models. By a model is meant a mathematical construct which, with the addition of certain verbal interpretations, describes observed phenomena. The justification of such a mathematical construct is solely and precisely that it is expected to work - that is, correctly to describe phenomena from a reasonably wide area. Furthermore, it must satisfy certain aesthetic criteria - that is, in relation to how much it describes, it must be rather simple.” (John von Neumann, “Method in the physical sciences”, 1961)

“Mathematical statistics provides an exceptionally clear example of the relationship between mathematics and the external world. The external world provides the experimentally measured distribution curve; mathematics provides the equation (the mathematical model) that corresponds to the empirical curve. The statistician may be guided by a thought experiment in finding the corresponding equation.” (Marshall J Walker, “The Nature of Scientific Thought”, 1963)

"Thus, the construction of a mathematical model consisting of certain basic equations of a process is not yet sufficient for effecting optimal control. The mathematical model must also provide for the effects of random factors, the ability to react to unforeseen variations and ensure good control despite errors and inaccuracies." (Yakov Khurgin, "Did You Say Mathematics?", 1974)

"A mathematical model is any complete and consistent set of mathematical equations which are designed to correspond to some other entity, its prototype. The prototype may be a physical, biological, social, psychological or conceptual entity, perhaps even another mathematical model." (Rutherford Aris, "Mathematical Modelling", 1978)

"Mathematical model making is an art. If the model is too small, a great deal of analysis and numerical solution can be done, but the results, in general, can be meaningless. If the model is too large, neither analysis nor numerical solution can be carried out, the interpretation of the results is in any case very difficult, and there is great difficulty in obtaining the numerical values of the parameters needed for numerical results." (Richard E Bellman, "Eye of the Hurricane: An Autobiography", 1984)

“Theoretical scientists, inching away from the safe and known, skirting the point of no return, confront nature with a free invention of the intellect. They strip the discovery down and wire it into place in the form of mathematical models or other abstractions that define the perceived relation exactly. The now-naked idea is scrutinized with as much coldness and outward lack of pity as the naturally warm human heart can muster. They try to put it to use, devising experiments or field observations to test its claims. By the rules of scientific procedure it is then either discarded or temporarily sustained. Either way, the central theory encompassing it grows. If the abstractions survive they generate new knowledge from which further exploratory trips of the mind can be planned. Through the repeated alternation between flights of the imagination and the accretion of hard data, a mutual agreement on the workings of the world is written, in the form of natural law.” (Edward O Wilson, “Biophilia”, 1984)

“The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing?” (Stephen Hawking, "A Brief History of Time", 1988)

“Mathematical modeling is about rules - the rules of reality. What distinguishes a mathematical model from, say, a poem, a song, a portrait or any other kind of ‘model’, is that the mathematical model is an image or picture of reality painted with logical symbols instead of with words, sounds or watercolors.” (John L Casti, "Reality Rules, The Fundamentals", 1992)

“Pedantry and sectarianism aside, the aim of theoretical physics is to construct mathematical models such as to enable us, from the use of knowledge gathered in a few observations, to predict by logical processes the outcomes in many other circumstances. Any logically sound theory satisfying this condition is a good theory, whether or not it be derived from ‘ultimate’ or ‘fundamental’ truth.” (Clifford Truesdell & Walter Noll, “The Non-Linear Field Theories of Mechanics” 2nd Ed., 1992)

"Nature behaves in ways that look mathematical, but nature is not the same as mathematics. Every mathematical model makes simplifying assumptions; its conclusions are only as valid as those assumptions. The assumption of perfect symmetry is excellent as a technique for deducing the conditions under which symmetry-breaking is going to occur, the general form of the result, and the range of possible behaviour. To deduce exactly which effect is selected from this range in a practical situation, we have to know which imperfections are present." (Ian Stewart & Martin Golubitsky, "Fearful Symmetry", 1992)

“A model is an imitation of reality and a mathematical model is a particular form of representation. We should never forget this and get so distracted by the model that we forget the real application which is driving the modelling. In the process of model building we are translating our real world problem into an equivalent mathematical problem which we solve and then attempt to interpret. We do this to gain insight into the original real world situation or to use the model for control, optimization or possibly safety studies." (Ian T Cameron & Katalin Hangos, “Process Modelling and Model Analysis”, 2001)

"Formulation of a mathematical model is the first step in the process of analyzing the behaviour of any real system. However, to produce a useful model, one must first adopt a set of simplifying assumptions which have to be relevant in relation to the physical features of the system to be modelled and to the specific information one is interested in. Thus, the aim of modelling is to produce an idealized description of reality, which is both expressible in a tractable mathematical form and sufficiently close to reality as far as the physical mechanisms of interest are concerned." (Francois Axisa, "Discrete Systems" Vol. I, 2001)

"[…] interval mathematics and fuzzy logic together can provide a promising alternative to mathematical modeling for many physical systems that are too vague or too complicated to be described by simple and crisp mathematical formulas or equations. When interval mathematics and fuzzy logic are employed, the interval of confidence and the fuzzy membership functions are used as approximation measures, leading to the so-called fuzzy systems modeling." (Guanrong Chen & Trung Tat Pham, "Introduction to Fuzzy Sets, Fuzzy Logic, and Fuzzy Control Systems", 2001)

"Modeling, in a general sense, refers to the establishment of a description of a system (a plant, a process, etc.) in mathematical terms, which characterizes the input-output behavior of the underlying system. To describe a physical system […] we have to use a mathematical formula or equation that can represent the system both qualitatively and quantitatively. Such a formulation is a mathematical representation, called a mathematical model, of the physical system." (Guanrong Chen & Trung Tat Pham, "Introduction to Fuzzy Sets, Fuzzy Logic, and Fuzzy Control Systems", 2001)

“What is a mathematical model? One basic answer is that it is the formulation in mathematical terms of the assumptions and their consequences believed to underlie a particular ‘real world’ problem. The aim of mathematical modeling is the practical application of mathematics to help unravel the underlying mechanisms involved in, for example, economic, physical, biological, or other systems and processes.” (John A Adam, “Mathematics in Nature”, 2003)

“Mathematical modeling is as much ‘art’ as ‘science’: it requires the practitioner to (i) identify a so-called ‘real world’ problem (whatever the context may be); (ii) formulate it in mathematical terms (the ‘word problem’ so beloved of undergraduates); (iii) solve the problem thus formulated (if possible; perhaps approximate solutions will suffice, especially if the complete problem is intractable); and (iv) interpret the solution in the context of the original problem.” (John A Adam, “Mathematics in Nature”, 2003)

“Mathematical modeling is the application of mathematics to describe real-world problems and investigating important questions that arise from it.” (Sandip Banerjee, “Mathematical Modeling: Models, Analysis and Applications”, 2014)

“A mathematical model is a mathematical description (often by means of a function or an equation) of a real-world phenomenon such as the size of a population, the demand for a product, the speed of a falling object, the concentration of a product in a chemical reaction, the life expectancy of a person at birth, or the cost of emission reductions. The purpose of the model is to understand the phenomenon and perhaps to make predictions about future behavior. [...] A mathematical model is never a completely accurate representation of a physical situation - it is an idealization." (James Stewart, “Calculus: Early Transcedentals” 8th Ed., 2016)

"Machine learning is about making computers learn and perform tasks better based on past historical data. Learning is always based on observations from the data available. The emphasis is on making computers build mathematical models based on that learning and perform tasks automatically without the intervention of humans." (Umesh R Hodeghatta & Umesha Nayak, "Business Analytics Using R: A Practical Approach", 2017)

"Mathematical modeling is the modern version of both applied mathematics and theoretical physics. In earlier times, one proposed not a model but a theory. By talking today of a model rather than a theory, one acknowledges that the way one studies the phenomenon is not unique; it could also be studied other ways. One's model need not claim to be unique or final. It merits consideration if it provides an insight that isn't better provided by some other model." (Reuben Hersh, ”Mathematics as an Empirical Phenomenon, Subject to Modeling”, 2017)
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Koeln, NRW, Germany
IT Professional with more than 25 years experience in IT in the area of full life-cycle of Web/Desktop/Database Applications Development, Software Engineering, Consultancy, Data Management, Data Quality, Data Migrations, Reporting, ERP implementations & support, Team/Project/IT Management, etc.