It's not easy for traditional standards such as STEP to describe product information in a semantic way, andthese limitations result in difficulties in knowledge-based product information integration. In addition, ...It's not easy for traditional standards such as STEP to describe product information in a semantic way, andthese limitations result in difficulties in knowledge-based product information integration. In addition, contemporarycomputing environment needs a Web-based language to describe product information, while STEP standard and itsEXPRESS language have no such features however. The development of Semantic Web is making itself be an impor-tant method to facilitate the knowledge-based information integration. This paper presents a new semantic Web lan-guage, DAML+OIL, and tries to use it to describe product information. It is proved that using DAML+OIL to de-scribe product information is quite a feasible way.展开更多
针对当前Web服务侧重于满足用户功能性需求,对用户隐私保护考虑不足的问题,提出了一种基于本体推理的保护用户隐私的方法。分析了隐私领域框架体系,构建了一个隐私领域本体。将Web服务中用户的隐私偏好转换成SWRL(semantic Web rule lan...针对当前Web服务侧重于满足用户功能性需求,对用户隐私保护考虑不足的问题,提出了一种基于本体推理的保护用户隐私的方法。分析了隐私领域框架体系,构建了一个隐私领域本体。将Web服务中用户的隐私偏好转换成SWRL(semantic Web rule language)规则,并利用推理引擎基于SWRL规则对隐私本体知识库进行推理,推导出隐私策略符合用户隐私偏好的Web服务。通过实验证明了该方法可以防止用户隐私信息的泄露,能够有效地保护用户隐私。展开更多
本体具有较强的知识表达能力,目前已经成为计算机学科的一个研究热点。本体在知识推理方面的能力比较弱,已成为OWL技术推广应用的主要瓶颈。将语义Web规则语言(Semantic Web Rule Language,SWRL)引入到本体中,能大大改善本体的推理能力...本体具有较强的知识表达能力,目前已经成为计算机学科的一个研究热点。本体在知识推理方面的能力比较弱,已成为OWL技术推广应用的主要瓶颈。将语义Web规则语言(Semantic Web Rule Language,SWRL)引入到本体中,能大大改善本体的推理能力,从而挖掘出许多新的隐含知识。文中将本体引入到故障树领域中,对如何构建故障树本体及相应的SWRL规则进行了研究。首先采用OWL语言构建故障树领域本体,然后将故障树中事件之间的逻辑关系转化成SWRL规则语言,最后将故障树领域本体和SWRL规则放入JESS推理机中进行推理,能挖掘出故障树中的隐含知识,从而解决系统故障的快速定位。通过实验证明了文中提出方法的可行性和有效性。展开更多
针对民用机场跑道侵入问题,提出领域本体和语义Web规则语言(semantic Web rule language,SWRL)技术,构建一种智能严重度评估本体框架模型。将本体概念引入到跑道侵入严重度评估知识库的构建中,设计本体知识库的构建方法,描述各步骤的具...针对民用机场跑道侵入问题,提出领域本体和语义Web规则语言(semantic Web rule language,SWRL)技术,构建一种智能严重度评估本体框架模型。将本体概念引入到跑道侵入严重度评估知识库的构建中,设计本体知识库的构建方法,描述各步骤的具体构建过程,说明规则推理的关键技术。通过规则推理分析跑道侵入场景,得出跑道侵入严重度和应对措施。以实例验证了该方法的可行性。展开更多
Network security policy and the automated refinement of its hierarchies aims to simplify the administration of security services in complex network environments. The semantic gap between the policy hierarchies reflect...Network security policy and the automated refinement of its hierarchies aims to simplify the administration of security services in complex network environments. The semantic gap between the policy hierarchies reflects the validity of the policy hierarchies yielded by the automated policy refinement process. However, little attention has been paid to the evaluation of the compliance between the derived lower level policy and the higher level policy. We present an ontology based on Ontology Web Language (OWL) to describe the semantics of security policy and their implementation. We also propose a method of estimating the semantic similarity between a given展开更多
Semantic Web Services is an emerging technology that promises to enable dynamic, execution-time discovery, composition, and invocation of Web Services. Semantic matchmaking plays a vital role in the automated and dyna...Semantic Web Services is an emerging technology that promises to enable dynamic, execution-time discovery, composition, and invocation of Web Services. Semantic matchmaking plays a vital role in the automated and dynamic discovery process of Semantic Web Services and consists in measuring the semantic distance between a requested service and an advertised one. In this paper, an innovative approach to effectively compute the semantic distance between Ontology Web Language for Services (OWL-S) annotated services is proposed. First, an edge-based method for measuring the semantic distance between Web Ontology Language (OWL) concepts is presented. Then, a comparison of the proposed measure and the one presented in a recent related work is made in order to show that our method is more efficient and fine-grained. Finally, some equations to compute semantic matchmaking of service capabilities, which are expressed in terms of inputs and outputs, are presented.展开更多
基于语义Web规则语言(semantic web rule language,SWRL)以及知识库构建工具Protégé4.3,制定服务型企业的业务模型互操作能力度量规则,构建服务型企业业务模型互操作能力度量的知识库,并利用知识库实现SAP公司的解决方案业务...基于语义Web规则语言(semantic web rule language,SWRL)以及知识库构建工具Protégé4.3,制定服务型企业的业务模型互操作能力度量规则,构建服务型企业业务模型互操作能力度量的知识库,并利用知识库实现SAP公司的解决方案业务模型间的互操作能力度量,验证了互操作能力度量规则能为不同业务模型间的有效协作提供决策支持.展开更多
文摘It's not easy for traditional standards such as STEP to describe product information in a semantic way, andthese limitations result in difficulties in knowledge-based product information integration. In addition, contemporarycomputing environment needs a Web-based language to describe product information, while STEP standard and itsEXPRESS language have no such features however. The development of Semantic Web is making itself be an impor-tant method to facilitate the knowledge-based information integration. This paper presents a new semantic Web lan-guage, DAML+OIL, and tries to use it to describe product information. It is proved that using DAML+OIL to de-scribe product information is quite a feasible way.
文摘针对当前Web服务侧重于满足用户功能性需求,对用户隐私保护考虑不足的问题,提出了一种基于本体推理的保护用户隐私的方法。分析了隐私领域框架体系,构建了一个隐私领域本体。将Web服务中用户的隐私偏好转换成SWRL(semantic Web rule language)规则,并利用推理引擎基于SWRL规则对隐私本体知识库进行推理,推导出隐私策略符合用户隐私偏好的Web服务。通过实验证明了该方法可以防止用户隐私信息的泄露,能够有效地保护用户隐私。
文摘本体具有较强的知识表达能力,目前已经成为计算机学科的一个研究热点。本体在知识推理方面的能力比较弱,已成为OWL技术推广应用的主要瓶颈。将语义Web规则语言(Semantic Web Rule Language,SWRL)引入到本体中,能大大改善本体的推理能力,从而挖掘出许多新的隐含知识。文中将本体引入到故障树领域中,对如何构建故障树本体及相应的SWRL规则进行了研究。首先采用OWL语言构建故障树领域本体,然后将故障树中事件之间的逻辑关系转化成SWRL规则语言,最后将故障树领域本体和SWRL规则放入JESS推理机中进行推理,能挖掘出故障树中的隐含知识,从而解决系统故障的快速定位。通过实验证明了文中提出方法的可行性和有效性。
文摘针对民用机场跑道侵入问题,提出领域本体和语义Web规则语言(semantic Web rule language,SWRL)技术,构建一种智能严重度评估本体框架模型。将本体概念引入到跑道侵入严重度评估知识库的构建中,设计本体知识库的构建方法,描述各步骤的具体构建过程,说明规则推理的关键技术。通过规则推理分析跑道侵入场景,得出跑道侵入严重度和应对措施。以实例验证了该方法的可行性。
基金the National Natural Science Foundation of China
文摘Network security policy and the automated refinement of its hierarchies aims to simplify the administration of security services in complex network environments. The semantic gap between the policy hierarchies reflects the validity of the policy hierarchies yielded by the automated policy refinement process. However, little attention has been paid to the evaluation of the compliance between the derived lower level policy and the higher level policy. We present an ontology based on Ontology Web Language (OWL) to describe the semantics of security policy and their implementation. We also propose a method of estimating the semantic similarity between a given
文摘Semantic Web Services is an emerging technology that promises to enable dynamic, execution-time discovery, composition, and invocation of Web Services. Semantic matchmaking plays a vital role in the automated and dynamic discovery process of Semantic Web Services and consists in measuring the semantic distance between a requested service and an advertised one. In this paper, an innovative approach to effectively compute the semantic distance between Ontology Web Language for Services (OWL-S) annotated services is proposed. First, an edge-based method for measuring the semantic distance between Web Ontology Language (OWL) concepts is presented. Then, a comparison of the proposed measure and the one presented in a recent related work is made in order to show that our method is more efficient and fine-grained. Finally, some equations to compute semantic matchmaking of service capabilities, which are expressed in terms of inputs and outputs, are presented.
文摘基于语义Web规则语言(semantic web rule language,SWRL)以及知识库构建工具Protégé4.3,制定服务型企业的业务模型互操作能力度量规则,构建服务型企业业务模型互操作能力度量的知识库,并利用知识库实现SAP公司的解决方案业务模型间的互操作能力度量,验证了互操作能力度量规则能为不同业务模型间的有效协作提供决策支持.