JN's AI Notes

Interactive Guide to Artificial Intelligence - Unit 1

What is Artificial Intelligence?

📚 Definition

Artificial Intelligence (AI) is the branch of computer science that enables machines to simulate human intelligence by performing tasks such as learning, reasoning, problem-solving, perception, and decision-making.

🧠 Core Components

  • Reasoning: Logical thinking and drawing conclusions
  • Learning: Acquiring and applying knowledge
  • Perception: Interpreting sensory information
  • Problem-solving: Identifying and resolving challenges
  • Linguistics: Understanding and using language

✅ Advantages

  • 24/7 efficiency and productivity
  • Enhanced decision-making with data analysis
  • Personalized user experiences
  • Innovation in robotics and autonomous systems
  • Risk reduction in dangerous tasks

⚠️ Disadvantages

  • Job displacement through automation
  • High implementation costs
  • Privacy and ethical concerns
  • Over-dependency on technology
  • Lack of emotional intelligence

Types of Intelligence

According to Howard Gardner's theory, there are 9 distinct types of intelligence:

📝

Linguistic

Using language effectively

🔢

Logical-Mathematical

Reasoning and problem-solving

🎨

Spatial

Thinking in images

🎵

Musical

Rhythm and composition

🤸

Bodily-Kinesthetic

Physical skills

👥

Interpersonal

Understanding others

🧘

Intrapersonal

Self-awareness

🌿

Naturalistic

Nature recognition

🤔

Existential

Deep questions about life

🆕 New Types of Intelligence

  • Emotional (EQ): Managing emotions and empathy
  • Creative: Generating innovative ideas
  • Collaborative: Teamwork and communication

History of Artificial Intelligence

1956 - Birth of AI

John McCarthy coins "Artificial Intelligence" at Dartmouth Conference

1966 - ELIZA

First chatbot created by Joseph Weizenbaum

1972 - WABOT-1

First full-scale humanoid robot in Japan

1974-1980 - First AI Winter

Reduced funding due to unmet expectations

1997 - Deep Blue

IBM's Deep Blue defeats chess champion Garry Kasparov

2011 - IBM Watson

Wins Jeopardy! against human champions

2015 - Amazon Alexa

Voice-activated AI becomes popular

Three Domains of AI

📊 Data (AI with Data)

Focus: Learning from information through collection, storage, and analysis

Skills: Data collection, visualization, pattern recognition

Examples: Weather forecasting, recommendation systems, exam analysis

👁️ Computer Vision (AI with Vision)

Focus: Understanding and interpreting visual information

Skills: Image recognition, object detection, facial recognition

Examples: Self-driving cars, medical imaging, security surveillance

💬 Natural Language Processing (AI with Language)

Focus: Understanding and generating human language

Skills: Speech recognition, text analysis, translation

Examples: Voice assistants (Alexa, Siri), chatbots, translators

🎯 Match the Application

Click to reveal which domain each application belongs to:

AI Project Cycle

A step-by-step process to build AI solutions systematically:

1

Problem Scoping

Define the problem clearly

2

Data Acquisition

Collect relevant data

3

Data Exploration

Analyze and visualize

4

Modeling

Apply AI algorithms

5

Evaluation

Test accuracy

6

Deployment

Implement in real world

🎯 4Ws Problem Canvas

Used in Problem Scoping stage:

  • Who: Identify stakeholders
  • What: Define the problem
  • Where: Specify location/context
  • Why: Explain importance

🔄 Modeling Approaches

Rule-Based: Fixed logic with predefined if-then conditions. Cannot adapt or learn.

Learning-Based: Data-driven models that learn patterns and improve with more data.

📈 Evaluation Metrics

  • TP (True Positive): Correctly predicted positive
  • TN (True Negative): Correctly predicted negative
  • FP (False Positive): Incorrectly predicted positive
  • FN (False Negative): Incorrectly predicted negative

AI Ethics

⚖️ Key Principles

  • Fairness: Avoid bias and treat all users equally
  • Transparency: Explainable and understandable decisions
  • Privacy: Protect personal data
  • Accountability: Humans responsible for AI decisions
  • Accessibility: Benefits available to all
  • Sustainability: Support environmental and social well-being

🤔 Ethics vs Morality

Ethics: Formal principles guided by philosophy, law, or professional codes

Morality: Personal/cultural beliefs shaped by tradition, religion, or society

⚠️ AI Bias

Definition: When AI produces systematically unfair results to certain groups

Causes:

  • Biased training data (incomplete, imbalanced)
  • Unfairly designed algorithms
  • Human assumptions and stereotypes

🚨 Ethical Scenarios

1. Bias and Discrimination: Use diverse datasets and conduct fairness audits

2. Privacy Risks: Apply anonymization and encryption

3. Transparency: Build explainable AI systems

4. Safety: Rigorous testing in critical sectors

5. Human Oversight: Expert validation of AI decisions

6. Job Displacement: Reskilling programs for workers

7. Cybersecurity: Strong security measures

8. Cultural Differences: Context-specific ethical frameworks

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