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流媒体技术与MPEG-4视频服务实现
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作者 鲁书喜 王巍 《福建电脑》 2004年第6期13-14,共2页
在流媒体技术的关键技术和MPEG-4视频编码技术的基础上,以基于“服务器推”的DarwinStreamingServer视频服务系统为平台,对MPEG-4编码数据进行分析,并讨论了对MPEG-4编码数据基于RTP封装传输的实现方法。
关键词 流媒体技术 MPEG-4 视频服务 “服务器推” RTP封装
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Accessing Alignments of Ontologies via IoT Based on SKOS Data Model 被引量:3
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作者 Xiulei Liu Xia Hou +3 位作者 Junyang Yu Ying Gao Yue Zhang Yingying Zhang 《China Communications》 SCIE CSCD 2017年第6期137-155,共19页
Many ontologies are provided to representing semantic sensors data.However,heterogeneity exists in different sensors which makes some service operators of Internet of Thing(IoT) difficult(such as such as semantic infe... Many ontologies are provided to representing semantic sensors data.However,heterogeneity exists in different sensors which makes some service operators of Internet of Thing(IoT) difficult(such as such as semantic inferring,non-linear inverted index establishing,service composing) .There is a great deal of research about sensor ontology alignment dealing with the heterogeneity between the different sensor ontologies,but fewer solutions focus on exploiting syntaxes in a sensor ontology and the pattern of accessing alignments.Our solution infers alignments by extending structural subsumption algorithms to analyze syntaxes in a sensor ontology,and then combines the alignments with the SKOS model to construct the integration sensor ontology,which can be accessed via the IoT.The experiments show that the integration senor ontology in the SKOS model can be utilized via the IoT service,and the accuracy of our prototype,in average,is higher than others over the four real ontologies. 展开更多
关键词 semantic sensor sensor ontologyalignment SKOS 10T
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