ajay dev learning AI: Search Methods for Problem Solving
Week 1: Introduction to AI and Search
- AI stands for Artificial Intelligence. It is the study of how to make computers think and learn like humans.
- The Turing Test is a test of a machine's ability to exhibit intelligent behavior equivalent to, or indistinguishable from, that of a human.
- The Winograd Schema Challenge is a test of a machine's ability to understand and reason about natural language.
- Search algorithms are used to find solutions to problems. They work by exploring different possibilities and choosing the best one.
Week 2: Search Spaces and Algorithms
- A search space is the set of all possible solutions to a problem.
- State space search is a type of search algorithm that explores all possible states of a problem to find a solution.
- Depth-First Search (DFS) is a search algorithm that explores the search space by going as deep as possible first.
- Breadth-First Search (BFS) is a search algorithm that explores the search space by going as wide as possible first.
- Iterative Deepening Search (IDS) is a search algorithm that combines DFS and BFS to find solutions to problems with large search spaces.
Week 3: Heuristic Search
- A heuristic function is a function that estimates the distance between a current state and a goal state.
- Heuristic search algorithms use heuristic functions to guide their search through the search space.
- Stochastic local search methods are a type of heuristic search algorithm that uses random choices to explore the search space.
Week 4: Population-Based Methods
- Population-based optimization methods are a type of search algorithm that works with a population of solutions to find a good solution.
- Genetic Algorithms are a type of population-based optimization method that is inspired by the process of natural selection.
- Emergent systems are systems that arise from the interaction of many simple components. Ant Colony Optimization is a type of population-based optimization method that is inspired by the behavior of ants.
Week 5: Optimal Path Finding
- Optimal path-finding problems are problems where the goal is to find the shortest or most efficient path between two points.
- The A* algorithm is a search algorithm that is used to find optimal paths.
- Admissibility is a property of heuristic functions that ensures that the A* algorithm will always find an optimal solution.
Week 6: Monotone Conditions and Sequence Alignment
- The monotone condition is a property of heuristic functions that ensures that the A* algorithm will never explore the same state twice.
- Space-saving versions of A* are versions of the A* algorithm that use less memory.
- Sequence alignment is a technique that is used to compare two sequences and find their similarities. Search algorithms can be used to solve sequence alignment problems.
Week 7: Game Playing
- Game playing is a popular application of AI.
- The Minimax algorithm is a search algorithm that is used to find the best move to make in a game.
- Alpha-Beta pruning is a technique that is used to improve the performance of the Minimax algorithm.
- SSS* is a search algorithm that is specifically designed for game playing.
Week 8: Automated Planning
- Automated planning is the task of automatically generating a plan to achieve a goal.
- Goal Stack Planning and Partial Order Planning are two common automated planning algorithms.
Week 9: Problem Decomposition and AO Algorithm*
- Problem decomposition is the technique of breaking down a large problem into smaller, more manageable problems.
- Algorithm AO* is a search algorithm that is designed for problem solving and optimization.
Week 10: Pattern-Directed Inference Systems and Reasoning
- Pattern-directed inference systems are a type of AI system that uses patterns to reason about problems.
- Forward chaining inference engines are a type of pattern-directed inference system that works by applying rules to data.
- The Rete algorithm is a technique that is used to improve the performance of forward chaining inference engines.
Week 11: Constraint Processing and Model-Based Diagnosis
- Constraint processing is a technique for solving problems by imposing constraints on the solutions.
- The Backtracking algorithm is a constraint processing algorithm that can be used to solve a variety of problems.
- The Waltz algorithm is a technique that combines search and reasoning to solve constraint processing problems.
- Model-based diagnosis is the task of identifying the cause of a problem in a system. AI techniques can be used to implement model-based diagnosis systems.
I hope this simplified explanation is helpful. Please let me know if you have any other questions.Prescribed Books
The following are the suggested books for the course:
Deepak Khemani. A First Course in Artificial Intelligence, McGraw Hill Education (India), 2013. (Chapters 1 – 8, some parts from Chapters 9 and 10))
Reference
John Haugeland, Artificial Intelligence: The Very Idea, A Bradford Book, The MIT Press, 1985.
Pamela McCorduck, Machines Who Think: A Personal Inquiry into the History and Prospects of Artificial Intelligence, A K Peters/CRC Press; 2nd edition, 2004.
Eugene Charniak and Drew McDermott, Introduction to Artificial Intelligence, Addison- Wesley Publ., 1985.
Zbigniew Michalewicz and David B. Fogel. How to Solve It: Modern Heuristics. Springer; 2nd edition, 2004.
Judea Pearl. Heuristics: Intelligent Search Strategies for Computer Problem Solving, Addison-Wesley, 1984.
Elaine Rich and Kevin Knight. Artificial Intelligence, Tata McGraw Hill, 1991.
Stuart Russell and Peter Norvig. Artificial Intelligence: A Modern Approach, 3rd Edition, Prentice Hall, 2009.
Patrick Henry Winston. Artificial Intelligence, Addison-Wesley, 1992.
Stefan Edelkamp and Stefan Schroedl. Heuristic Search: Theory and Applications, Morgan Kaufmann, 2011.
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