遗传算法支持的地理信息服务动态组合和重构研究  

Services Dynamic Composition and Reconstruction Based on Genetic Algorithms

作　　者：张立朝[1] 王珂珂[1] 王青山[1] 郑海鹰[1] 

机构地区：[1]信息工程大学测绘学院,郑州市陇海中路66号450052

出　　处：《武汉大学学报（信息科学版）》2010年第1期69-73,共5页Geomatics and Information Science of Wuhan University

基　　金：2007年信息工程大学博士研究生学位论文创新基金资助项目

摘　　要：将地理信息服务组合问题规划为离散、有限的数据结构上的最优化问题,研究了遗传算法支持的地理信息服务动态组合和重构模型,并从服务组合时间、成功率等对模型的组合性能进行了测试。This paper studies dynamic composition and reconstruction of geographical information services through programming the geographical information services composition as the optimization problem upon on the discrete and limited data structure. This model defines and describes the semantic information of the geographical information services quality including the times, expenses, availabilities and so on. The paper acquires the weight of the geographical information service quality and evaluation function. Then this model uses these parameters to process the genetic operations and requires the optimal composition project. Finally, the paper analyzes and tests the services dynamic composition model from the composition times and composition success rates. The result inclidates that the services dynamic composition model is feasible.

关 键 词：遗传算法 地理信息服务组合和重构 服务质量 评价函数 

分 类 号：P208[天文地球—地图制图学与地理信息工程]