Computer Science ›› 2014, Vol. 41 ›› Issue (4): 205-210.

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Computational Complexity Analysis of Backtrack-free and Random-walk Strategies on Constraint Satisfaction Problems with Growing Domains

XU Wei and GONG Fu-zhou   

  • Online:2018-11-14 Published:2018-11-14

Abstract: Constraint satisfaction problems (CSP) with growing domains are a kind of important practical models in complexity theory,but the algorithm performance research is still rare.By the study on a typical CSP with growing domains,RB model,it is discovered that the backtrack-free strategy works better than the random-walk strategy when the size of problems is huge.Different from CSP with fixed domains such as SAT,this is a special property to CSP with growing domain.Moreover,the performances in experiments and theoretic analysis for these two strategies were also given.

Key words: Backtrack-free,Random-walk,Algorithmic complexity,RB model,CSP

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