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A Study On Occupational Ethics For Publishing Industry And Its Building

Posted on:2009-06-05Degree:MasterType:Thesis
Country:ChinaCandidate:X J LuFull Text:PDF
GTID:2178360242460812Subject:Marxist theory and ideological and political education
Abstract/Summary:PDF Full Text Request
Genetic Algorithm (GA) is a set of new-global-optimistic repeatedly search algorithm which simulates the process of creature evolution that of Darwinian's genetic selection and natural elimination. It is widely applied to the domain of combinational evolutionary problem seeking, self-adapt controlling, planning devising, machine learning and artificial life etc. However, there are multi-objective attributes in real-world optimization problems that always conflict, so the multi-objective genetic algorithm (MOGA) is put forward. MOGA can deal simultaneously with many objections, and find Pareto-optimal solutions gradually.Based on extensive and deep review of literature, a thorough analysis and research on many theoretical and application oriented problems is presented. The main contents follow:The basic theory and application of GAs and GAs for multi-objective optimization are systematically and thoroughly introduced. By analyzing on the classical methods, the thesis points out their special applying areas and shortcomings. Some improved algorithms are introduced.A kind of general improvement in Genetic Algorithm is presented, combining some concrete features, such as TSP programming. Simulation results show that the improved algorithm is feasible, enhancing the efficiency at the same time.This thesis presents the concept of the multi-objective optimization methods, analysis its implementation steps and the implementation methods with genetic algorithm, and shows that algorithm is practical. In this paper, we take NSGA-II as a benchmark. It improves simulation results on multi-objective JSSP problems and shows that the improved multi-objective genetic algorithm has ideal effects on the aspects of its speed and diversity.
Keywords/Search Tags:Genetic algorithm, Multi-objective genetic algorithm, Pareto-optimal solutions, Multi-objective optimization, Niche technology
PDF Full Text Request
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