Complexity of approximation with relative error criterion in worst, average, and probabilistic settings
نویسندگان
چکیده
منابع مشابه
1 Worst - Case vs . Average - Case Complexity
So far we have dealt mostly with the worst-case complexity of problems. We might also wonder aobut the average-case complexity of a problem, namely, how difficult the problem is to solve for an instance chosen randomly from some distribution. It may be the case for a certain problem that hard instances exist but are extremely rare. Many reductions use very specifically constructed problems, so ...
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Complexity and approximation ratio of semitotal domination in graphs
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A general and expressive model of sequential decision making under uncertainty is provided by the Markov decision processes (MDPs) framework. Complex applications with very large state spaces are best modelled implicitly, for example as precondition-effect operators, the representation used in AI planning. This kind of representations are very powerful, and they make the construction of policie...
متن کاملthe effect of task cognitive complexity and time limit on the performance of the learners with different proficiency levels in second language writing skill
this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...
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ژورنال
عنوان ژورنال: Journal of Complexity
سال: 1987
ISSN: 0885-064X
DOI: 10.1016/0885-064x(87)90023-9