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Is conflict directed backjumping a waste of time? PowerPoint PPT Presentation

Is conflict directed backjumping a waste of time? - Is conflict directed backjumping a waste of time? CP 1996 AR 33 Barbara M Smith (up to 2001) Chen & van Beek 2001 Chen & van Beek cbj a waste of time Random problems ...

Is conflict directed backjumping a waste of time? CP 1996 AR 33 Barbara M Smith (up to 2001) Chen & van Beek 2001 Chen & van Beek cbj a waste of time Random problems ...

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Constraint Satisfaction PowerPoint PPT Presentation

Constraint Satisfaction - the apes (distributed, not disbanded) I am a Glaswegian ... 10 years of conflict-directed backjumping. CI 9(4) Hybrid Algorithms for the Constraint Satisfaction ...

the apes (distributed, not disbanded) I am a Glaswegian ... 10 years of conflict-directed backjumping. CI 9(4) Hybrid Algorithms for the Constraint Satisfaction ...

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Constraint Satisfaction Problems PowerPoint PPT Presentation

Constraint Satisfaction Problems - Tree decomposition Algorithm: ... [Amir 2002] Constant approximation in polytime is an important open question Local search for CSPs Hill-climbing, ...

Tree decomposition Algorithm: ... [Amir 2002] Constant approximation in polytime is an important open question Local search for CSPs Hill-climbing, ...

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Abstract Answer Set Solver PowerPoint PPT Presentation

Abstract Answer Set Solver - An abstract framework for describing algorithms to find answer sets of a logic ... annotations and ordering, a record M can be taken as a set of literals, i.e., a ' ...

An abstract framework for describing algorithms to find answer sets of a logic ... annotations and ordering, a record M can be taken as a set of literals, i.e., a ' ...

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Solving SAT Modulo Theories PowerPoint PPT Presentation

Solving SAT Modulo Theories - Solving SAT and SAT Modulo Theories: from an Abstract Davis-Putnam-Logemann ... DPLL(T) [DPLLT, Sammy]: use the decision procedure to guide the search of a DPLL solver ...

Solving SAT and SAT Modulo Theories: from an Abstract Davis-Putnam-Logemann ... DPLL(T) [DPLLT, Sammy]: use the decision procedure to guide the search of a DPLL solver ...

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IAIP Week 9 Constraint Satisfaction IV: LookBack Strategies PowerPoint PPT Presentation

IAIP Week 9 Constraint Satisfaction IV: LookBack Strategies - Culprit variable: xb such that ab-1 contains no conflict set. 10/1/09. RMJ VeCoS ITU ... Jump back to the conflict set culprit variable ...

Culprit variable: xb such that ab-1 contains no conflict set. 10/1/09. RMJ VeCoS ITU ... Jump back to the conflict set culprit variable ...

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Lecture 5: Constraint Satisfaction Problems PowerPoint PPT Presentation

Lecture 5: Constraint Satisfaction Problems - graph-coloring, 8-queen, cryptarithmetic, crossword puzzles, vision problems,scheduling, design ... Sudoku. Each row, column and major block must be alldifferent ' ...

graph-coloring, 8-queen, cryptarithmetic, crossword puzzles, vision problems,scheduling, design ... Sudoku. Each row, column and major block must be alldifferent ' ...

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Constraint Satisfaction Problems - Constraint Satisfaction Problems Tuomas Sandholm Carnegie Mellon University Computer Science Department [Read Chapter 6 of Russell & Norvig] Tree-structured CSPs ...

Constraint Satisfaction Problems Tuomas Sandholm Carnegie Mellon University Computer Science Department [Read Chapter 6 of Russell & Norvig] Tree-structured CSPs ...

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Constraint Satisfaction - CI9(4) Hybrid Algorithms for the Constraint Satisfaction Problem Preamble CI9(4) Hybrid Algorithms for the Constraint Satisfaction Problem Preamble I am Patrick ...

CI9(4) Hybrid Algorithms for the Constraint Satisfaction Problem Preamble CI9(4) Hybrid Algorithms for the Constraint Satisfaction Problem Preamble I am Patrick ...

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Notes 6: Constraint Satisfaction Problems PowerPoint PPT Presentation

Notes 6: Constraint Satisfaction Problems - graph-coloring, 8-queen, cryptarithmetic, crossword puzzles, vision problems,scheduling, design ... Crossword puzzles. Graph coloring problems. Vision problems ...

graph-coloring, 8-queen, cryptarithmetic, crossword puzzles, vision problems,scheduling, design ... Crossword puzzles. Graph coloring problems. Vision problems ...

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Artificial Intelligence CIS 342 PowerPoint PPT Presentation

Artificial Intelligence CIS 342 - Dictionary of valid words. and phrases. Empty crossword grid. Problem: ... Associate weights with words in dictionary. based on frequency of letters ...

Dictionary of valid words. and phrases. Empty crossword grid. Problem: ... Associate weights with words in dictionary. based on frequency of letters ...

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The LPSAT Engine and its Application to Metric Planning PowerPoint PPT Presentation

The LPSAT Engine and its Application to Metric Planning - The LPSAT Engine and its Application to Metric Planning Steve Wolfman University of Washington CS&E Advisor: Dan Weld

The LPSAT Engine and its Application to Metric Planning Steve Wolfman University of Washington CS&E Advisor: Dan Weld

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Outline for 4/16 PowerPoint PPT Presentation

Outline for 4/16 - Outline for 4/16 Recap Logistics Search Constraint Satisfaction Knowledge Representation 1 Model-Based Autonomous Systems Motivation & Overview Model-based ...

Outline for 4/16 Recap Logistics Search Constraint Satisfaction Knowledge Representation 1 Model-Based Autonomous Systems Motivation & Overview Model-based ...

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G52AIP Artificial Intelligence Programming PowerPoint PPT Presentation

G52AIP Artificial Intelligence Programming - Jump back to the most recent conflicted variable. Assume node x has domain {red, green} ... Any values in these variables conflict with the current value is ...

Jump back to the most recent conflicted variable. Assume node x has domain {red, green} ... Any values in these variables conflict with the current value is ...

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Notes 6: Constraint Satisfaction Problems - Title: Lecture 7: Game-Playing and Search Author: Padhraic Smyth Last modified by: juan masa Created Date: 1/6/1998 2:36:47 PM Document presentation format

Title: Lecture 7: Game-Playing and Search Author: Padhraic Smyth Last modified by: juan masa Created Date: 1/6/1998 2:36:47 PM Document presentation format

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State-of-the-art in SAT solvers PowerPoint PPT Presentation

State-of-the-art in SAT solvers - A set of propositional variables and clauses involving variables (x1 x2' x3) and (x2 x1' x4) ... Benchmarks. Random. Crafted. Industrial. SAT race 2006. SAT race 2006 ...

A set of propositional variables and clauses involving variables (x1 x2' x3) and (x2 x1' x4) ... Benchmarks. Random. Crafted. Industrial. SAT race 2006. SAT race 2006 ...

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Fast, Solvable Crosswords PowerPoint PPT Presentation

Fast, Solvable Crosswords - ... puzzles often exhibit symmetry. All five by five and six by six puzzles had ... Long words intersect with relatively few long words in the Thursday puzzle. ...

... puzzles often exhibit symmetry. All five by five and six by six puzzles had ... Long words intersect with relatively few long words in the Thursday puzzle. ...

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Foundations of Constraint Processing PowerPoint PPT Presentation

Foundations of Constraint Processing - September 11, 2005. Backtracking. 1. Foundations of Constraint Processing, Fall 2005 ... is wrong, we suffer from thrashing (exploring barren' parts of solution space) ...

September 11, 2005. Backtracking. 1. Foundations of Constraint Processing, Fall 2005 ... is wrong, we suffer from thrashing (exploring barren' parts of solution space) ...

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Constraint Networks PowerPoint PPT Presentation

Constraint Networks - Constraint Networks Overview Search space The effect of variable ordering A coloring problem example Backtracking Search for a Solution Backtracking search for a ...

Constraint Networks Overview Search space The effect of variable ordering A coloring problem example Backtracking Search for a Solution Backtracking search for a ...

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Foundations of Constraint Processing - Return: new current variable. 20 September 2004. Backtracking. 13 ... CBJ: data structure. Maintains a conflict set: conf-set. conf-set[i] are first initialized to {0} ...

Return: new current variable. 20 September 2004. Backtracking. 13 ... CBJ: data structure. Maintains a conflict set: conf-set. conf-set[i] are first initialized to {0} ...

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Learning - Nogood recording in local search (Richards2 CP98 (BMS external? ... A hyper edge for each nogood. An m-clique for each variable's domain. Give me an independent ...

Nogood recording in local search (Richards2 CP98 (BMS external? ... A hyper edge for each nogood. An m-clique for each variable's domain. Give me an independent ...

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Today - Marie desJardins Today s class Interleaving backtracking and consistency checking Variable-ordering heuristics Value-ordering heuristics Intelligent backtracking

Marie desJardins Today s class Interleaving backtracking and consistency checking Variable-ordering heuristics Value-ordering heuristics Intelligent backtracking

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Chapter 3 Solving Problems By Searching and Constraint Satisfaction Problem PowerPoint PPT Presentation

Chapter 3 Solving Problems By Searching and Constraint Satisfaction Problem - cs570 Artificial Intelligence Chapter 3 Solving Problems By Searching and Constraint Satisfaction Problem 2000. 3. 20. Overview Solving Problem by ...

cs570 Artificial Intelligence Chapter 3 Solving Problems By Searching and Constraint Satisfaction Problem 2000. 3. 20. Overview Solving Problem by ...

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The Model Evolution Calculus PowerPoint PPT Presentation

The Model Evolution Calculus - Recent research in propositional satisfiability (SAT) has been ... Disconnection method [Billon], [Letz, Stenz], - Hyper Tableaux Next Generation [Baumgartner] ...

Recent research in propositional satisfiability (SAT) has been ... Disconnection method [Billon], [Letz, Stenz], - Hyper Tableaux Next Generation [Baumgartner] ...

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Fourier Descriptors PowerPoint PPT Presentation

Fourier Descriptors - Fourier Descriptors. Historical note: Much of the earliest work in FDs was done ... which we circumnavigate the shape properly. Your. textbook discusses this. ...

Fourier Descriptors. Historical note: Much of the earliest work in FDs was done ... which we circumnavigate the shape properly. Your. textbook discusses this. ...

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Constraint Satisfaction Problems - Arc consistency detects failure earlier than forward checking ... As the level of local consistency checking (lookahead) is increased, CBJ becomes ...

Arc consistency detects failure earlier than forward checking ... As the level of local consistency checking (lookahead) is increased, CBJ becomes ...

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Resource Allocation in Communication Networks Using Abstraction and Constraint Satisfaction PowerPoint PPT Presentation

Resource Allocation in Communication Networks Using Abstraction and Constraint Satisfaction - Choosing the variable with the fewest 'legal' values. Variable and value ordering (cont. ... Cause the fewest splitting of BIs I the BIH. More splittings, more ...

Choosing the variable with the fewest 'legal' values. Variable and value ordering (cont. ... Cause the fewest splitting of BIs I the BIH. More splittings, more ...

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Constraint Satisfaction Problems - Constraint Satisfaction Problems Tuomas Sandholm Carnegie Mellon University Computer Science Department [Read Chapter 6 of Russell & Norvig] Tree-structured CSPs ...

Constraint Satisfaction Problems Tuomas Sandholm Carnegie Mellon University Computer Science Department [Read Chapter 6 of Russell & Norvig] Tree-structured CSPs ...

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Constraint Satisfaction - Hill Climbing with min conflicts as heuristic ... At each step: choose a conflicted variable at random, change its assignment to ...

Hill Climbing with min conflicts as heuristic ... At each step: choose a conflicted variable at random, change its assignment to ...

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Constraint Processing PowerPoint PPT Presentation

Constraint Processing - View a problem as a set of variables to which we have to ... Dik. Unary constraint: only involves one variable. Binary constraint: only involves two variables ...

View a problem as a set of variables to which we have to ... Dik. Unary constraint: only involves one variable. Binary constraint: only involves two variables ...

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MAC and Combined Heuristics: Two Reasons to Forsake FC and CBJ on Hard Problems PowerPoint PPT Presentation

MAC and Combined Heuristics: Two Reasons to Forsake FC and CBJ on Hard Problems - [Sabin & Freuder 94?]: MAC is better for: large practical problems ... Sabin and Freuder showed that MAC can outperform FC on hard instances of CSP's. ...

[Sabin & Freuder 94?]: MAC is better for: large practical problems ... Sabin and Freuder showed that MAC can outperform FC on hard instances of CSP's. ...

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Foundations of Constraint Processing - More on definition and formal ... Context: You are a senior in college ... Train, elevator, car, etc. Given: Components and their attributes (variables) ...

More on definition and formal ... Context: You are a senior in college ... Train, elevator, car, etc. Given: Components and their attributes (variables) ...

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Integrating Loop and Data Optimizations for Locality within a Constraint Network Based Framework PowerPoint PPT Presentation

Integrating Loop and Data Optimizations for Locality within a Constraint Network Based Framework - Forces designers to consider heuristics. 13. Loop-Data Transformations (3/3) Consider array X ... known) search algorithms can be used in a systematic fashion ...

Forces designers to consider heuristics. 13. Loop-Data Transformations (3/3) Consider array X ... known) search algorithms can be used in a systematic fashion ...

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Constraint Satisfaction Problems: Formulation, Arc Consistency PowerPoint PPT Presentation

Constraint Satisfaction Problems: Formulation, Arc Consistency - Arc consistency eliminates values of each ... Achieving Arc Consistency via Constraint Propagation. Directed arc (Vi, Vj) ... directed arc consistency for each ...

Arc consistency eliminates values of each ... Achieving Arc Consistency via Constraint Propagation. Directed arc (Vi, Vj) ... directed arc consistency for each ...

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Part II Methods of AI PowerPoint PPT Presentation

Part II Methods of AI - state is defined by variables Xi with values from domain Di ... {WA = red, NT = green, Q = red, NSW = green, V = red, SA = blue, T = green} ...

state is defined by variables Xi with values from domain Di ... {WA = red, NT = green, Q = red, NSW = green, V = red, SA = blue, T = green} ...

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Review Test1 PowerPoint PPT Presentation

Review Test1 - Arc Consistency provides fast method of constraint propagation stronger than forward checking. ... 3- consistency means that any pair of adjacent variables can ...

Arc Consistency provides fast method of constraint propagation stronger than forward checking. ... 3- consistency means that any pair of adjacent variables can ...

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From AND/OR Search to AND/OR BDDs PowerPoint PPT Presentation

From AND/OR Search to AND/OR BDDs - From AND/OR Search to AND/OR BDDs Rina Dechter Information and Computer Science, UC-Irvine, and Radcliffe Institue of Advanced Study, Cambridge

From AND/OR Search to AND/OR BDDs Rina Dechter Information and Computer Science, UC-Irvine, and Radcliffe Institue of Advanced Study, Cambridge

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DPLLbased Checkers for Satisfiability Modulo Theories PowerPoint PPT Presentation

DPLLbased Checkers for Satisfiability Modulo Theories - in an infinite model of T. CMU, Oct 4. Talk Plan ... New version of the DPLL(T) calculus, to model more accurately modern SAT engines ...

in an infinite model of T. CMU, Oct 4. Talk Plan ... New version of the DPLL(T) calculus, to model more accurately modern SAT engines ...

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1' Introduction PowerPoint PPT Presentation

1' Introduction - Formulating the State Space. For huge search space, we need. Careful formulation ... 8 4 moves: one of 1-8 numbers moves up, down, right, or left ...

Formulating the State Space. For huge search space, we need. Careful formulation ... 8 4 moves: one of 1-8 numbers moves up, down, right, or left ...

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Chapter 5. Constraint Satisfaction Problems

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Propositional Satisfiability (SAT) PowerPoint PPT Presentation

Propositional Satisfiability (SAT) - The ambassador instructs you to invite Peru or exclude Qatar. The vice-ambassador wants you to invite Qatar or Romania or both. ...

The ambassador instructs you to invite Peru or exclude Qatar. The vice-ambassador wants you to invite Qatar or Romania or both. ...

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Intorduction to Artificial Intelligence PowerPoint PPT Presentation

Intorduction to Artificial Intelligence - What is Artificial Intelligence (John McCarthy , Basic Questions) What is Artificial Intelligence The Turing Test (Can Machine think? A. M.

What is Artificial Intelligence (John McCarthy , Basic Questions) What is Artificial Intelligence The Turing Test (Can Machine think? A. M.

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Constraint Satisfaction Problems (CSPs) PowerPoint PPT Presentation

Constraint Satisfaction Problems (CSPs) - Local search for CSPs Use complete-state representation Initial state = all variables assigned values ... of conflicts with the other ... values are picked as ...

Local search for CSPs Use complete-state representation Initial state = all variables assigned values ... of conflicts with the other ... values are picked as ...

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Constraint Satisfaction Problems (CSPs) - Constraint Satisfaction Problems (CSPs) This ... n = 2 to 50 Zebra: see ... plus forward checking is more efficient than either approach alone FC checking does ...

Constraint Satisfaction Problems (CSPs) This ... n = 2 to 50 Zebra: see ... plus forward checking is more efficient than either approach alone FC checking does ...

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Solving Problems By Searching and Constraint Satisfaction Problem PowerPoint PPT Presentation

Solving Problems By Searching and Constraint Satisfaction Problem - the basic elements of a problem definition. initial state. operator (or successor function S) ... On holiday in Romania: currently in Arad. Flight leaves ...

the basic elements of a problem definition. initial state. operator (or successor function S) ... On holiday in Romania: currently in Arad. Flight leaves ...

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Approximation Techniques for Automated Reasoning PowerPoint PPT Presentation

Approximation Techniques for Automated Reasoning - University of California, Irvine. dechter@ics.uci.edu. SP2. 2. Outline ... 'Road map' CSPs: complete algorithms. Variable Elimination. Conditioning (Search) ...

University of California, Irvine. dechter@ics.uci.edu. SP2. 2. Outline ... 'Road map' CSPs: complete algorithms. Variable Elimination. Conditioning (Search) ...

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Constraint Satisfaction Problems (CSPs) - www.ics.uci.edu

www.ics.uci.edu

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CMSC 471 Fall 2004 PowerPoint PPT Presentation

CMSC 471 Fall 2004 - Arc consistency tells us that there must be at least one ... Fortunately, 2-consistency is relatively easy to achieve, so constraint trees are easy to solve ...

Arc consistency tells us that there must be at least one ... Fortunately, 2-consistency is relatively easy to achieve, so constraint trees are easy to solve ...

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Artificial Intelligence 1: Constraint Satis- faction problems PowerPoint PPT Presentation

Artificial Intelligence 1: Constraint Satis- faction problems - Artificial Intelligence 1: ... set var = value in current return faiilure Min-conflicts example 1 Use of min-conflicts heuristic in hill-climbing.

Artificial Intelligence 1: ... set var = value in current return faiilure Min-conflicts example 1 Use of min-conflicts heuristic in hill-climbing.

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Exam post-mortem PowerPoint PPT Presentation

Exam post-mortem - Ignored resource related information can be used to improve the ... Poke. Timer. Attitude. Accum. SEP Action. SEP_Segment. Th_Seg. contained_by. equals. equals ...

Ignored resource related information can be used to improve the ... Poke. Timer. Attitude. Accum. SEP Action. SEP_Segment. Th_Seg. contained_by. equals. equals ...

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Satisfiability modulo the Theory of Bit Vectors - Satisfiability modulo the Theory of Bit Vectors

Satisfiability modulo the Theory of Bit Vectors

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Constraints and Search PowerPoint PPT Presentation

Constraints and Search - Constrainedness. Including s from Toby Walsh. Logic & AR Summer School, 2002 ... Constrainedness knife-edge. Seen in other problem domains. number partitioning, ...

Constrainedness. Including s from Toby Walsh. Logic & AR Summer School, 2002 ... Constrainedness knife-edge. Seen in other problem domains. number partitioning, ...

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Constraint Solving: Problems, Domains and Search Methods PowerPoint PPT Presentation

Constraint Solving: Problems, Domains and Search Methods - Constraint Solving: Problems, Domains and Search Methods Jacques Robin Outline What is constraint solving? Constraint domains Constraint solving inference services ...

Constraint Solving: Problems, Domains and Search Methods Jacques Robin Outline What is constraint solving? Constraint domains Constraint solving inference services ...

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Combining AI Planning and Description Logics Reasoning for Composition of Web Services PowerPoint PPT Presentation

Combining AI Planning and Description Logics Reasoning for Composition of Web Services - Combining AI Planning and Description Logics Reasoning for Composition of Web Services ... AI planning techniques for composition. Template-based composition: ...

Combining AI Planning and Description Logics Reasoning for Composition of Web Services ... AI planning techniques for composition. Template-based composition: ...

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InterBlockBacktracking: Exploiting Structure in Numerical CSPs Solving PowerPoint PPT Presentation

InterBlockBacktracking: Exploiting Structure in Numerical CSPs Solving - InterBlock-Backtracking: Exploiting Structure in Numerical CSPs Solving. Christophe Jermann ... I3S/CNRS-INRIA, University of Nice. Outline ...

InterBlock-Backtracking: Exploiting Structure in Numerical CSPs Solving. Christophe Jermann ... I3S/CNRS-INRIA, University of Nice. Outline ...

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Inteligencia Artificial PowerPoint PPT Presentation

Inteligencia Artificial - Title: Inteligencia Artificial Author: Rolando Rafael Hern ndez Cisneros Last modified by: Rolando Hern ndez Created Date: 2/18/2004 8:50:15 AM Document ...

Title: Inteligencia Artificial Author: Rolando Rafael Hern ndez Cisneros Last modified by: Rolando Hern ndez Created Date: 2/18/2004 8:50:15 AM Document ...

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Backjumping PowerPoint PPT Presentations