Cooperative Problem Solving â p. 1 ... distributed problems (either by nature, or for security and confidentiality reasons) ... CP + AI + OR, . . . Cooperative ...
Cooperative Problem Solving Eric Monfroy IRIN – Universite´ de Nantes
Cooperative Problem Solving – p. 1
Constraint programming evolution 1. constraint programming system = black box system tightly integrated language and solver 2. constraint programming system = modelling tool + solver the language is separated from one solver solver = blackbox system 3. constraint programming = modelling tools + strategies + solvers several (glass box) solvers control for making solvers cooperate strategy: from a few functionalities to a complete language
Cooperative Problem Solving – p. 2
Needs for cooperations/strategies resolution aspects: hybrid constraints/problems (sharing variables) distributed problems (either by nature, or for security and confidentiality reasons) inefficiency of generic solvers w.r.t. specific (but with limited scope) solvers demand for better performance quality of solutions software engineering aspects: reuse and integration of solvers extensible and flexible systems Cooperative Problem Solving – p. 3
Major aspects of cooperation formal framework: semantics (result): global optimum, correctness, completeness proof of cooperative algo.: fixed point, termination, complexity interaction (data): shared constraints and variables exchanged information strategy (control): control of resolution coordination of solvers software engineering: system architecture communication interoperability Cooperative Problem Solving – p. 4
Types of cooperations intra-solver cooperation (endogenous cooperation): cooperation of “simple” functionalities (“parts” of solvers) glass box mechanism mainly devoted to propagation-based solvers ad-hoc cooperation (exogenous cooperation): devoted to a class of problems solvers, interaction, and strategies are fixed cooperation languages (exogenous cooperation): tools for solver integration and reuse instructions for controlling resolution and designing strategies Cooperative Problem Solving – p. 5
Future Prospects a robust cooperation system separate computation strategy from search strategy Constraint programming = modelling tools + computation strategy + search strategy + solvers towards a kind of calculus for cooperation: a relation linking cooperation, solvers, constraint properties to analyze cooperations to automatically generate cooperations an abstract machine synergies between: complete + incomplete methods, local search, CP + AI + OR, . . . Cooperative Problem Solving – p. 6
Deciding What To Do {add, subtract, multiply, or divide)........... 4. Write a Number Sentence................................................ ......... 6. Solve World Problems (addition, ...
Speech-Act theory from Winograd and Flores [15] and its derivative [6]. These models allow a more efficient management of contractual processes in firms.
Speech-Act theory from Winograd and Flores [15] and its derivative [6]. These models allow a more efficient management of contractual processes in firms.
Chapter 1. Lamps: A Test Problem for Cooperative. Coevolution ... gorithms (CCEAs) on a simple test problem, that is the optimal placement of a set ... 1.1 Introduction ... described in section 1.5: three strategies are tested, a classical genetic ..
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May 26, 2008 - Lutz FE (1929) Observations on leaf-cutting ants. Am Mus Novit. 388:1â21. Mailleux AC, Detrain C, Deneubourg J-L (2006) Starvation drives a.
Jun 17, 2008 - Abstract In this paper we investigate the Xexibility of foraging behavior in the leaf-cutting ant Atta colombica, both at the individual and collective ...
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Being strongly NP-hard, the RCPSP has been widely studied over the last 20 years. We refer to [2] for a recent survey on this problem. Only instances with up to ...
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We present a large neighborhood search method for solving the frequency assignment prob- lem with multiple source interferences. Starting from an initial ...
above mentioned word problem solved by students who did not as yet study algebra systematically. In continuation of our previous work, the current research ...
Sep 3, 2007 - Superadditivity â v(N) ⥠âk v(Sk) for every partition {Sk}k of N. ⢠If v(S) ⥠0 â S ..... Modelling,â Rand Journal of Economics, 17, 176â188.
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