基于语义匹配的遥感信息处理服务组合方法  

Remotely Sensed Information Processing Service Composition Based on Semantic Matching

作　　者：朱庆[1] 杨晓霞[1] 李海峰[2] 

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号430079 [2]中南大学土木建筑学院,长沙市韶山南路22号410075

出　　处：《武汉大学学报（信息科学版）》2010年第4期384-387,共4页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金资助项目(40721001)

摘　　要：针对时域、空间、专题、分辨率等多种语义相互关联所导致的遥感信息处理服务组合的准确性难题,提出了一种基于语义匹配的遥感信息处理服务组合方法,包括多层次的遥感信息处理服务语义匹配和渐进精化的服务组合,即时构建与用户需求相关的服务关系与或图,将后续服务选择范围限定在需求相关服务的范围之内,在关系与或图中进行启发式搜索,并选择语义匹配度最高的子图作为服务组合的结果。Aiming at the automatic service composition of remotely sensed information processing service, this paper proposes a semantic matching based composition method. Based on remote sensing information ontology, a hierarchical semantic matching methods on both service category and remotely sensed image metadata is introduced. And a progressive composition is implemented by two steps：① the service and/or graph related to user requirement is created on-line to limit the services＇ selection range; ② AO based heuristic search algorithm is used for optimal path in the and/or graph. Typical remote sensing change detection application is employed as a case study.

关 键 词：遥感信息服务 语义匹配 服务组合 

分 类 号：P208[天文地球—地图制图学与地理信息工程] P237.3[天文地球—测绘科学与技术]