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To deal with the problem of information modeling of product design process module(DPM), with the object-oriented (O-O)method, an integrated information model of DPM is proposed. This paper, firstly, presents the information necessity of DPM in product design process management. Then, focusing on design task, the information structure of DPM is proposed, which includes six basic class models, such...
An improved A* search algorithm was proposed to solve Path-optimization problems in emergency actions. By altering the search direction and reforming the evaluate function, make it more suitable for dealing with large Path-optimization problems. Through the instance validation of emergency command air-defense system in a certain city, get better results.
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