'8 queens problem' diaporamas de présentation

Goals of Course

These notes are intended for use by students in CS1501 at the University of Pittsburgh and no one else These notes are provided free of charge and may not be sold in any shape or form

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Goals of Course

These notes are intended for use by students in CS1501 at the University of Pittsburgh and no one else These notes are provided free of charge and may not be sold in any shape or form

2.74k views • 274 slides

CS 4700: Foundations of Artificial Intelligence

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Topic 13 Recursive Backtracking

Topic 13 Recursive Backtracking.

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Topic 10 Recursive Backtracking

Topic 10 Recursive Backtracking.

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Problem Solving and Search in AI Part I

Problem Solving and Search in AI Part I. Search and Intelligence. Search is one of the most powerful approaches to problem solving in AI Search is a universal problem solving mechanism Systematically explores the alternatives Finds the sequence of steps towards a solution

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adapted from Recursive Backtracking by Mike Scott, UT Austin

Backtracking. Start. Success!. Success!. Failure. Problem space consists of states (nodes) and actions (paths that lead to new states). When in a node can can only see paths to connected nodes

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adapted from Recursive Backtracking by Mike Scott, UT Austin

Backtracking. Start. Success!. Success!. Failure. Problem space consists of states (nodes) and actions (paths that lead to new states). When in a node can can only see paths to connected nodes

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Solving Problems by Searching

Solving Problems by Searching. CPS 4801-01. Outline. Problem-solving agents Example problems Basic search algorithms. Problem-Solving Agents. Intelligent agents are supposed to maximize their performance measure. If the agent can adopt a goal and aim at satisfying it.

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PROLOG

PROLOG. 8 QUEENS PROBLEM. 8 QUEENS. Place 8 queens on an 8 X 8 chessboard so that: Queens do not attack each other. 8 QUEENS. Solution will be programmed as a unary predicate solution(Position)

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CSE 143 Lecture 17

CSE 143 Lecture 17. Recursive Backtracking slides created by Marty Stepp http://www.cs.washington.edu/143/. Exercise.

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Exercise: Dice roll sum

Exercise: Dice roll sum. Write a method diceSum similar to diceRoll , but it also accepts a desired sum and prints only arrangements that add up to exactly that sum. diceSum(2, 7); diceSum(3, 7);. [1, 6] [2, 5] [3, 4] [4, 3] [5, 2] [6, 1]. [1, 1, 5] [1, 2, 4] [1, 3, 3] [1, 4, 2]

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PROLOG

PROLOG. OPERATORS. PROLOG OPERATORS. There are existing Prolog operators: +, -, *, .. We have the concept of precedence in Prolog, as well as the concept of associativity We can design our own operator. PROLOG OPERATORS.

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A Las Vegas Algorithm for the 8 Queens problem

A Las Vegas Algorithm for the 8 Queens problem. Lecture 35 CS 312. The Final. http://faculty.cs.byu.edu/~jones/312/sample_final.pdf (or .doc) In the testing center Use their calculators. Multiple choice. Show work for partial credit Review on Wednesday. Objectives. Finish project 4

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The "8 Queens" problem

The "8 Queens" problem. Consider the problem of trying to place 8 queens on a chess board such that no queen can attack another queen. What are the "choices"? How do we "make" or "un-make" a choice? How do we know when to stop?. Naive algorithm. for (each square on board):

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