The interoperation among enterprises in e-business could block the ambient semantic collaboration and cause a big problem since varying information descriptions and different data models may be used in different enter...The interoperation among enterprises in e-business could block the ambient semantic collaboration and cause a big problem since varying information descriptions and different data models may be used in different enterprises＇ information systems. Ontology is an important tool to overcome the above mentioned syntax and semantic misunderstanding problem. Our goal is to provide a user-friendly environment supporting syntax and neutral format data model for business information. In this paper, two scenarios are discussed and a unified description of data model is developed to solve the gap in interoperation through mapping from logical data of enterprise＇s information system. It provides the methods to realize the mapping among different types of data or information. First, database and other types of information are transformed into neutral format that are described by web ontology language （OWL）. Second, the neutral format can be mapped into the semantic entities and semantic linking through the process of extraction and annotation and added into ontology and then described in a standard format that makes the collaboration be understood easily.展开更多
Ontologies have become a popular research topic in many communities. In fact, ontology is a main component of this research;therefore, the definition, structure and the main operations and applications of ontology are...Ontologies have become a popular research topic in many communities. In fact, ontology is a main component of this research;therefore, the definition, structure and the main operations and applications of ontology are provided. Web content consists mainly of distributed hypertext and hypermedia, and is accessed via a combination of keyword based search and link navigation. Hence, the ontology can provide a common vocabulary, and a grammar for publishing data, and can supply a semantic description of data which can be used to preserve the ontologies and keep them ready for inference. This paper provides basic concepts of semantic web, and defines the structure and the main applications of ontology.展开更多
This paper discribes a data representation for WordNet 2.1 based on Web Ontology Language (OWL). The main components of WordNet database are transformed as classes in OWL, and the relations between synsets or lexcial ...This paper discribes a data representation for WordNet 2.1 based on Web Ontology Language (OWL). The main components of WordNet database are transformed as classes in OWL, and the relations between synsets or lexcial words are transformed as OWL properties. Our conversion is based on the data file of WordNet instead of the Prolog database. This work can be used to enrich the work in progress of standard conversion of WordNet to the RDF/OWL representation at W3C.展开更多
Digital maps greatly support storytelling about territories,especially when enriched with data describing cultural,societal,and ecological aspects,conveying emotional messages that describe the territory as a whole.St...Digital maps greatly support storytelling about territories,especially when enriched with data describing cultural,societal,and ecological aspects,conveying emotional messages that describe the territory as a whole.Story maps are interactive online digital narratives that can describe a territory beyond its map by enriching the map with text,pictures,videos,and other multimedia information.This paper presents a semi-automatic workflow to produce story maps from textual documents containing territory data.An expertfirst assembles one territory-contextual document containing text and images.Then,automatic processes use natural language processing and Wikidata services to(i)extract key concepts(entities)and geospatial coordinates associated with the territory,(ii)assemble a logically-ordered sequence of enriched story-map events,and(iii)openly publish online story maps and an interoperable Linked Open Data semantic knowledge base for event exploration and inter-story correlation analyses.Our workflow uses an Open Science-oriented methodology to publish all processes and data.Through our workflow,we produced story maps for the value chains and territories of 23 rural European areas of 16 countries.Through numerical evaluation,we demonstrated that territory experts considered the story maps effective in describing their territories,and appropriate for communicating with citizens and stakeholders.展开更多
A mode of ontology-based information integration and management( OIIM) for testability scheme was proposed through expatiating on the connotation of the system testability scheme.Aiming at the complexity of influencin...A mode of ontology-based information integration and management( OIIM) for testability scheme was proposed through expatiating on the connotation of the system testability scheme.Aiming at the complexity of influencing factors in optimal design procedure of the testability scheme, the information of concept entities,concept attributions and concept relationships was analyzed and extracted,and then the testability scheme information ontology( TSIO) was built and coded via web ontology language( OWL).Based on the information ontology, the generalized model for testability scheme( GMTS) was founded by defining transformation rules. The primary study shows that the mode of OIIM for testability scheme can make up the deficiencies in knowledge representation and reasoning existing in traditional information models,and achieve the information share and reuse. It provides the effectual model basis for the optimal design of the testability scheme.展开更多
Temporal ontologies allow to represent not only concepts,their properties,and their relationships,but also time-varying information through explicit versioning of definitions or through the four-dimensional perduranti...Temporal ontologies allow to represent not only concepts,their properties,and their relationships,but also time-varying information through explicit versioning of definitions or through the four-dimensional perdurantist view.They are widely used to formally represent temporal data semantics in several applications belonging to different fields(e.g.,Semantic Web,expert systems,knowledge bases,big data,and artificial intelligence).They facilitate temporal knowledge representation and discovery,with the support of temporal data querying and reasoning.However,there is no standard or consensual temporal ontology query language.In a previous work,we have proposed an approach namedτJOWL(temporal OWL 2 from temporal JSON,where OWL 2 stands for"OWL 2 Web Ontology Language"and JSON stands for"JavaScript Object Notation").τJOWL allows(1)to automatically build a temporal OWL 2 ontology of data,following the Closed World Assumption(CWA),from temporal JSON-based big data,and(2)to manage its incremental maintenance accommodating their evolution,in a temporal and multi-schema-version environment.In this paper,we propose a temporal ontology query language forτJOWL,namedτSQWRL(temporal SQWRL),designed as a temporal extension of the ontology query language—Semantic Query-enhanced Web Rule Language(SQWRL).The new language has been inspired by the features of the consensual temporal query language TSQL2(Temporal SQL2),well known in the temporal(relational)database community.The aim of the proposal is to enable and simplify the task of retrieving any desired ontology version or of specifying any(complex)temporal query on time-varying ontologies generated from time-varying big data.Some examples,in the Internet of Healthcare Things(IoHT)domain,are provided to motivate and illustrate our proposal.展开更多
分布式语义信息集成是语义Web面临的六大挑战之一.本体映射是语义集成的关键.文章基于贝叶斯决策理论提出最小风险的本体映射模型:RiMOM(Risk Minimization based Ontology Mapping).RiMOM将映射发现问题转换成风险最小化问题,提供了一...分布式语义信息集成是语义Web面临的六大挑战之一.本体映射是语义集成的关键.文章基于贝叶斯决策理论提出最小风险的本体映射模型:RiMOM(Risk Minimization based Ontology Mapping).RiMOM将映射发现问题转换成风险最小化问题,提供了一个多策略的本体映射方法.该方法不仅在1∶1的映射上取得了较好的效果,还实现了n∶1映射.实验表明在几个公开的数据集上,RiMOM可以取得比同类方法更高的查准率和查全率.展开更多
为了提高网页正文提取的实用性和准确性,在已有的网页正文提取算法基础上,提出了一种网页图片选择算法,并将两者集成为一种新的网页图文摘要方法。构建了网页图文摘要的方法模型,设计出图片选择算法,该算法使用本体建模语言(ontology we...为了提高网页正文提取的实用性和准确性,在已有的网页正文提取算法基础上,提出了一种网页图片选择算法,并将两者集成为一种新的网页图文摘要方法。构建了网页图文摘要的方法模型,设计出图片选择算法,该算法使用本体建模语言(ontology web language,OWL)进行页面本体的构建,提取图片和网页各种元素的语义特性,并考虑图片的各类align属性,从而能在网页中选取较优的具有代表性图片。实验结果表明,该方法能够有效地丰富和完善网页正文提取。展开更多
基金supported by the Europeans Commission s 6th Framework Programme (No. FP6-2005-IST-5-034980)National High Technology Research and Development Program of China (863 Pro-gram) (No. 2007AA04Z105)National Natural Science of Foun-dation of China (No. 60674080)
文摘The interoperation among enterprises in e-business could block the ambient semantic collaboration and cause a big problem since varying information descriptions and different data models may be used in different enterprises＇ information systems. Ontology is an important tool to overcome the above mentioned syntax and semantic misunderstanding problem. Our goal is to provide a user-friendly environment supporting syntax and neutral format data model for business information. In this paper, two scenarios are discussed and a unified description of data model is developed to solve the gap in interoperation through mapping from logical data of enterprise＇s information system. It provides the methods to realize the mapping among different types of data or information. First, database and other types of information are transformed into neutral format that are described by web ontology language （OWL）. Second, the neutral format can be mapped into the semantic entities and semantic linking through the process of extraction and annotation and added into ontology and then described in a standard format that makes the collaboration be understood easily.
文摘Ontologies have become a popular research topic in many communities. In fact, ontology is a main component of this research;therefore, the definition, structure and the main operations and applications of ontology are provided. Web content consists mainly of distributed hypertext and hypermedia, and is accessed via a combination of keyword based search and link navigation. Hence, the ontology can provide a common vocabulary, and a grammar for publishing data, and can supply a semantic description of data which can be used to preserve the ontologies and keep them ready for inference. This paper provides basic concepts of semantic web, and defines the structure and the main applications of ontology.
基金Project supported by the National Natural Science Foundation of China (No. 60373080)the 985 Project of Zhejiang University, China
文摘This paper discribes a data representation for WordNet 2.1 based on Web Ontology Language (OWL). The main components of WordNet database are transformed as classes in OWL, and the relations between synsets or lexcial words are transformed as OWL properties. Our conversion is based on the data file of WordNet instead of the Prolog database. This work can be used to enrich the work in progress of standard conversion of WordNet to the RDF/OWL representation at W3C.
基金funding from the European Union’s Horizon 2020 research and innovation programme under the MOVING project(grant agreement no 862739).
文摘Digital maps greatly support storytelling about territories,especially when enriched with data describing cultural,societal,and ecological aspects,conveying emotional messages that describe the territory as a whole.Story maps are interactive online digital narratives that can describe a territory beyond its map by enriching the map with text,pictures,videos,and other multimedia information.This paper presents a semi-automatic workflow to produce story maps from textual documents containing territory data.An expertfirst assembles one territory-contextual document containing text and images.Then,automatic processes use natural language processing and Wikidata services to(i)extract key concepts(entities)and geospatial coordinates associated with the territory,(ii)assemble a logically-ordered sequence of enriched story-map events,and(iii)openly publish online story maps and an interoperable Linked Open Data semantic knowledge base for event exploration and inter-story correlation analyses.Our workflow uses an Open Science-oriented methodology to publish all processes and data.Through our workflow,we produced story maps for the value chains and territories of 23 rural European areas of 16 countries.Through numerical evaluation,we demonstrated that territory experts considered the story maps effective in describing their territories,and appropriate for communicating with citizens and stakeholders.
文摘A mode of ontology-based information integration and management( OIIM) for testability scheme was proposed through expatiating on the connotation of the system testability scheme.Aiming at the complexity of influencing factors in optimal design procedure of the testability scheme, the information of concept entities,concept attributions and concept relationships was analyzed and extracted,and then the testability scheme information ontology( TSIO) was built and coded via web ontology language( OWL).Based on the information ontology, the generalized model for testability scheme( GMTS) was founded by defining transformation rules. The primary study shows that the mode of OIIM for testability scheme can make up the deficiencies in knowledge representation and reasoning existing in traditional information models,and achieve the information share and reuse. It provides the effectual model basis for the optimal design of the testability scheme.
文摘Temporal ontologies allow to represent not only concepts,their properties,and their relationships,but also time-varying information through explicit versioning of definitions or through the four-dimensional perdurantist view.They are widely used to formally represent temporal data semantics in several applications belonging to different fields(e.g.,Semantic Web,expert systems,knowledge bases,big data,and artificial intelligence).They facilitate temporal knowledge representation and discovery,with the support of temporal data querying and reasoning.However,there is no standard or consensual temporal ontology query language.In a previous work,we have proposed an approach namedτJOWL(temporal OWL 2 from temporal JSON,where OWL 2 stands for"OWL 2 Web Ontology Language"and JSON stands for"JavaScript Object Notation").τJOWL allows(1)to automatically build a temporal OWL 2 ontology of data,following the Closed World Assumption(CWA),from temporal JSON-based big data,and(2)to manage its incremental maintenance accommodating their evolution,in a temporal and multi-schema-version environment.In this paper,we propose a temporal ontology query language forτJOWL,namedτSQWRL(temporal SQWRL),designed as a temporal extension of the ontology query language—Semantic Query-enhanced Web Rule Language(SQWRL).The new language has been inspired by the features of the consensual temporal query language TSQL2(Temporal SQL2),well known in the temporal(relational)database community.The aim of the proposal is to enable and simplify the task of retrieving any desired ontology version or of specifying any(complex)temporal query on time-varying ontologies generated from time-varying big data.Some examples,in the Internet of Healthcare Things(IoHT)domain,are provided to motivate and illustrate our proposal.
文摘分布式语义信息集成是语义Web面临的六大挑战之一.本体映射是语义集成的关键.文章基于贝叶斯决策理论提出最小风险的本体映射模型:RiMOM(Risk Minimization based Ontology Mapping).RiMOM将映射发现问题转换成风险最小化问题,提供了一个多策略的本体映射方法.该方法不仅在1∶1的映射上取得了较好的效果,还实现了n∶1映射.实验表明在几个公开的数据集上,RiMOM可以取得比同类方法更高的查准率和查全率.
文摘为了提高网页正文提取的实用性和准确性,在已有的网页正文提取算法基础上,提出了一种网页图片选择算法,并将两者集成为一种新的网页图文摘要方法。构建了网页图文摘要的方法模型,设计出图片选择算法,该算法使用本体建模语言(ontology web language,OWL)进行页面本体的构建,提取图片和网页各种元素的语义特性,并考虑图片的各类align属性,从而能在网页中选取较优的具有代表性图片。实验结果表明,该方法能够有效地丰富和完善网页正文提取。
