Introduction to AI: Defining, Modeling, and Historical Context

Jul 9, 2024

Lecture 1: Introduction to Artificial Intelligence

Course Overview

  • Welcome to 6.03
    • Discussion on the diversity of student names
    • Introduction to the course and a brief mention of enrollment turnover

Definition of Artificial Intelligence

  • AI involves:
    • Thinking, Perception, and Action
    • Broad definition, incorporating model making

Model Making at MIT

  • Common theme across subjects: building models
    • Differential equations
    • Probability
    • Simulations
  • AI models targeted at improving understanding of thinking, perception, and action
  • Representation is crucial for models

Examples to Illustrate Models

  • Gyroscope Example
    • Importance of representation in understanding mechanical concepts
  • Farmer, Fox, Goose, and Grain Problem
    • Visualization and state diagrams to solve logical puzzles
    • 16 possible states, refined to acceptable states by constraints

Components of Artificial Intelligence

  • Algorithms: Procedures for solving problems
  • Generate and Test
    • Example: Identifying tree leaves using a field guide
    • Key properties: non-redundancy, information absorption
  • Rumpelstiltskin Principle
    • Naming concepts give power over them (e.g., 'aglet')
    • Importance of terminology in understanding AI concepts

Importance of Simplifying Concepts

  • Difference between simple and trivial
    • Simple can be powerful and effective
    • Trivial implies lack of value
  • Encouragement to avoid dismissing simple ideas as unimportant

History of Artificial Intelligence

  • Early Milestones
    • Lady Lovelace (1842): First programmer, skepticism about computers' potential intelligence
    • Alan Turing (1950): Introduced Turing Test
  • Modern Era
    • Marvin Minsky (1960): Foundation for modern AI research
    • Symbolic Integration Programs, ELIZA, SHRDLU
  • Dawn of Expert Systems (Late 70s - Early 80s)
    • Rule-based systems like Mycin for medical diagnosis
    • Practical applications in industry (e.g., Delta Airlines)
  • Bulldozer Age
    • Massive computational power substituting for some aspects of intelligence
    • Deep Blue defeating the world chess champion

Current Era: The Age of the Right Way

  • Focus on integrated loops connecting thinking, perception, and action
  • Example: MIT's visual recognition system

Interdisciplinary Support and Optimism

  • Contributions from cognitive psychology, linguistics, anthropology
  • Evolutionary accidents contributing to human intelligence
  • Importance of language in combining concepts and storytelling

Course Operations

  • Various components: Lectures, Recitations, Mega Recitations, Tutorials
  • Importance of attending class
  • Grading system based on a 5-point scale
  • Logical support for two opportunities in grading through quizzes and finals

Communication and Administrative Details

  • Tutorial scheduling and updates regarding recitations
  • Possible Python review session for those unfamiliar with the language
  • Encouragement to check the course homepage for updates