In order to solve the problem of modeling product configuration knowledge at the semantic level to successfully implement the mass customization strategy, an approach of ontology-based configuration knowledge modeling...In order to solve the problem of modeling product configuration knowledge at the semantic level to successfully implement the mass customization strategy, an approach of ontology-based configuration knowledge modeling, combining semantic web technologies, was proposed. A general configuration ontology was developed to provide a common concept structure for modeling configuration knowledge and rules of specific product domains. The OWL web ontology language and semantic web rule language （SWRL） were used to formally represent the configuration ontology, domain configuration knowledge and rules to enhance the consistency, maintainability and reusability of all the configuration knowledge. The configuration knowledge modeling of a customizable personal computer family shows that the approach can provide explicit, computerunderstandable knowledge semantics for specific product configuration domains and can efficiently support automatic configuration tasks of complex products.展开更多
Semantic web technologies have become a popular technique to apply meaning to unstructured data.They have been infrequently applied to problems within the agricultural domain when compared to complementary domains.Des...Semantic web technologies have become a popular technique to apply meaning to unstructured data.They have been infrequently applied to problems within the agricultural domain when compared to complementary domains.Despite this lack of application,agriculture has a large number of semantic resources that have been developed by large NGOs such as the Food and Agriculture Organization(FAO).This survey is intended to motivate further research in the application of semantic web technologies for agricultural problems,by making available a self contained reference that provides:a comprehensive review of preexisting semantic resources and their construction methods,data interchange standards,as well as a survey of the current applications of semantic web technologies.展开更多
Geographic information system(GIS)technology is a combination of computer’s graphic and database to store and process spatial information.According to the users’demands,GIS exports the exact geographic information a...Geographic information system(GIS)technology is a combination of computer’s graphic and database to store and process spatial information.According to the users’demands,GIS exports the exact geographic information and related in-formation for users with map and description through associating geographic place and related attributes.Based on the existing pop-ular technology,this paper presents a distributed web GIS application based on component technology and fractal image compres-sion.It presents the basic framework of the proposed system at first,and then discusses the key technology of implementing this sys-tem;finally it designs a three-layer WEB GIS instance using VC++ATL based on Geo Beans.The example suggests the proposed design is correct,feasible and valid.展开更多
The paper proposes an architectural model of web-based geographic information system based on mashup-technologies. Represented system is designed using the programming patterns and is used to control access rights to ...The paper proposes an architectural model of web-based geographic information system based on mashup-technologies. Represented system is designed using the programming patterns and is used to control access rights to various functions or objects in the system.展开更多
Web service is characterized by its isomerism and loose coupling;thus greatly facilitate the application of operation in distributed situation,but its disadvantages cause serious safety problems.The principium and cha...Web service is characterized by its isomerism and loose coupling;thus greatly facilitate the application of operation in distributed situation,but its disadvantages cause serious safety problems.The principium and characteristic of Web service classical attack technology are expatiated,classical attack techniques are classified,and attack technology is simulated,and then,the directions and the future of Web security are discussed.展开更多
基金The National Natural Science Foundation of China(No.70471023).
文摘In order to solve the problem of modeling product configuration knowledge at the semantic level to successfully implement the mass customization strategy, an approach of ontology-based configuration knowledge modeling, combining semantic web technologies, was proposed. A general configuration ontology was developed to provide a common concept structure for modeling configuration knowledge and rules of specific product domains. The OWL web ontology language and semantic web rule language （SWRL） were used to formally represent the configuration ontology, domain configuration knowledge and rules to enhance the consistency, maintainability and reusability of all the configuration knowledge. The configuration knowledge modeling of a customizable personal computer family shows that the approach can provide explicit, computerunderstandable knowledge semantics for specific product configuration domains and can efficiently support automatic configuration tasks of complex products.
基金The research in this review was supported by FAPESP grants number 16/15524-3,15/14228-9,and CNPq grant 302645/2015-2.The authors would also like to thank the anonymous referees for their advice and criticisms.
文摘Semantic web technologies have become a popular technique to apply meaning to unstructured data.They have been infrequently applied to problems within the agricultural domain when compared to complementary domains.Despite this lack of application,agriculture has a large number of semantic resources that have been developed by large NGOs such as the Food and Agriculture Organization(FAO).This survey is intended to motivate further research in the application of semantic web technologies for agricultural problems,by making available a self contained reference that provides:a comprehensive review of preexisting semantic resources and their construction methods,data interchange standards,as well as a survey of the current applications of semantic web technologies.
文摘Geographic information system(GIS)technology is a combination of computer’s graphic and database to store and process spatial information.According to the users’demands,GIS exports the exact geographic information and related in-formation for users with map and description through associating geographic place and related attributes.Based on the existing pop-ular technology,this paper presents a distributed web GIS application based on component technology and fractal image compres-sion.It presents the basic framework of the proposed system at first,and then discusses the key technology of implementing this sys-tem;finally it designs a three-layer WEB GIS instance using VC++ATL based on Geo Beans.The example suggests the proposed design is correct,feasible and valid.
文摘The paper proposes an architectural model of web-based geographic information system based on mashup-technologies. Represented system is designed using the programming patterns and is used to control access rights to various functions or objects in the system.
文摘Web service is characterized by its isomerism and loose coupling;thus greatly facilitate the application of operation in distributed situation,but its disadvantages cause serious safety problems.The principium and characteristic of Web service classical attack technology are expatiated,classical attack techniques are classified,and attack technology is simulated,and then,the directions and the future of Web security are discussed.
