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一个基于概念语义近似度的Web服务匹配算法 被引量:23
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作者 邱田 李鹏飞 林品 《电子学报》 EI CAS CSCD 北大核心 2009年第2期429-432,共4页
随着web服务的迅速发展和广泛应用,高效的服务发现逐渐成为一个关键问题.目前的web服务发现标准UDDI(Universal Description,Discovery,and Integration),存在不支持语义推理的局限性,而且无法根据服务的能力和属性进行搜索,限制了服务... 随着web服务的迅速发展和广泛应用,高效的服务发现逐渐成为一个关键问题.目前的web服务发现标准UDDI(Universal Description,Discovery,and Integration),存在不支持语义推理的局限性,而且无法根据服务的能力和属性进行搜索,限制了服务发现的效能.针对这个问题可以采用在服务发现中引入OWL-S的方法.本文提出了一个基于概念语义近似度的web服务语义匹配算法,通过对服务的不同属性进行语义匹配计算,从而提高服务发现的查准率和查全率.算法基于一个关键的语义近似度度量函数,用以计算本体实体概念的语义近似度值.测试算法的实验结果显示了算法的有效性. 展开更多
关键词 WEB服务发现 UDDI OWL-S 语义匹配算法 近似度度量函数
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Web services composition based on global semantics and QoS-aware aspect 被引量:1
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作者 张佩云 黄波 孙亚民 《Journal of Southeast University(English Edition)》 EI CAS 2008年第3期296-299,共4页
A global semantics matching and QoS-awareness service selection are proposed when aimed at a web services composition process.Both QoS-aware matching and global semantic matching are considered during the global match... A global semantics matching and QoS-awareness service selection are proposed when aimed at a web services composition process.Both QoS-aware matching and global semantic matching are considered during the global matching.When there are demands for global semantic matching and QoS of service composition,a concrete service set which meets the demands is selected for the whole service composition process and an optimal solution is also achieved.A QoS model is built and the corresponding evaluation method is given for the matching of the service composition process.Based on them,a genetic algorithm is proposed to achieve the maximal global semantic matching degree and fulfill the QoS requirements for the whole service composition process.Experimental results and analysis show that the algorithm is feasible and effective for semantics and QoS-aware service matching. 展开更多
关键词 semantic matching global matching QoS model genetic algorithm
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Building of cognizing semantic map in large-scale semi-unknown environment
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作者 吴皓 田国会 +2 位作者 李岩 桑森 张海婷 《Journal of Central South University》 SCIE EI CAS 2014年第5期1804-1815,共12页
The quick response code based artificial labels are applied to provide semantic concepts and relations of surroundings that permit the understanding of complexity and limitations of semantic recognition and scene only... The quick response code based artificial labels are applied to provide semantic concepts and relations of surroundings that permit the understanding of complexity and limitations of semantic recognition and scene only with robot's vision.By imitating spatial cognizing mechanism of human,the robot constantly received the information of artificial labels at cognitive-guide points in a wide range of structured environment to achieve the perception of the environment and robot navigation.The immune network algorithm was used to form the environmental awareness mechanism with "distributed representation".The color recognition and SIFT feature matching algorithm were fused to achieve the memory and cognition of scenario tag.Then the cognition-guide-action based cognizing semantic map was built.Along with the continuously abundant map,the robot did no longer need to rely on the artificial label,and it could plan path and navigate freely.Experimental results show that the artificial label designed in this work can improve the cognitive ability of the robot,navigate the robot in the case of semi-unknown environment,and build the cognizing semantic map favorably. 展开更多
关键词 artificial label distributed information representation cognizing semantic map service robot
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