'Goal state' diaporamas de présentation

Problem Solving

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Game Playing

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Dr. Ziad Salem, HDD, PhD, BsC. Spezs1@hotmail Computer Engineering Department Electrical and Electronic Engineering Facu

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Inverse Kinematics (part 1)

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Uninformed Search

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Uninformed Search

Uninformed Search. Reading: Chapter 3 by today, Chapter 4.1-4.3 by Wednesday, 9/12 Homework #2 will be given out on Wednesday DID YOU TURN IN YOUR SURVEY? USE COURSEWORKS AND TAKE THE TEST. Pending Questions. Class web page: http://www.cs.columbia.edu/~kathy/cs4701

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Uninformed Search

Uninformed Search. Chapter 3. Some material adopted from notes by Charles R. Dyer, University of Wisconsin-Madison. Big Idea. Newell A & Simon H A. Human problem solving . Englewood Cliffs, NJ: Prentice-Hall. 1972. .

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Lecture 6: Adversarial Search & Games

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Informed Search Algorithms

Informed Search Algorithms. Chapter 4 Feb 2 2007. Belief States (Chap 3). Graph Search (Chap 3). Graph Search: Analysis. Time and Space complexity: proportional to state space (< O(b d )) Optimality: may not be optimal if algorithm throws away a cheaper path to a node that is already closed

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RFID ? ??? ????? ???

RFID ? ??? ????? ???. 2005 ? 4 ? 15 ? ??? ????? ?????? obkwon@khu.ac.kr. Level of services. Business viability. Technical viability. Ubiquitous services & Biz model. Ubiquitous services & Biz model. Service Architecture. RFID-Based Ubiquitous Services. Some cases NAMA-RFID

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Informed search algorithms

Informed search algorithms. Chapter 4. Outline. Best-first search Greedy best-first search A * search Heuristics Memory Bounded A* Search. Best-first search. Idea: use an evaluation function f(n) for each node f(n) provides an estimate for the total cost.

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Problem Solving

Problem Solving Views of Problem solving Well-defined problems Much studied in AI Requires search Domain general heuristics for solving problems What about ill-defined problems? No real mechanisms for dealing with these

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Problem Solving

Problem Solving. Views of Problem solving. Well-defined problems Much studied in AI Requires search Domain general heuristics for solving problems What about ill-defined problems? No real mechanisms for dealing with these

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Informed Search Methods

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Basic search techniques

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Formal Description of a Problem

Formal Description of a Problem In AI, we will formally define a problem as a space of all possible configurations where each configuration is called a state thus, we use the term state space an initial state one or more goal states

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Informed Search

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Problem Solving Through Search

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Problem solving by Searching

Problem solving by Searching. Problem Formulation. 1. 1. 2. 2. 3. 3. 4. 4. 5. 8. 6. 7. 7. 6. 8. 5. 8-Puzzle problem. Solve the following 8-Puzzle problem by moving tiles left, down, up and right. Initial State. goal State. 1. 1. 1. 2. 2. 3. 3. 3. 2. 4. 4. 8. 5. 8.

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