this research aims to compare the capabilities of a thesaurus and an ontology for representation of domain knowledge. this is the first to focus on the construction of an ontology in library and information science (lis), in the domain of indexing and in persian language. the research also develops the methodology of ontology construction by implementing domain analysis methodology. the present...

A Virtual Organization (VO) consists of some real organizations with common interests, which aims to provide inter organizational associations to reach some common goals by sharing their resources with each other. Providing security mechanisms, and especially a suitable access control mechanism, which enforces the defined security policy is a necessary requirement in VOs. Since VO is a complex ...

several semantic image search schemes have been recently proposed to retrieve images from the web. however, the query context is regularly ignored in these techniques and hence, many of the returned images are not adequately relevant. in this paper, we make use of context to further confine the outcome of the semantic search engines. for this purpose, we propose a hybrid search engine which uti...

Abstract This paper presents a model that combines ontology, UML modeling, and relational model. The ontology (and the Ontology Web Language - OWL), UML, are first introduced in article. After review of literature, comparison conversion systems presented. created is then presented real modeled using

This article transforms the Description of a Cryptocurrency (DOACC) ontology OWL into RelOn-toUML model. The can be downloaded from github, an open-source project. RelOntoUML model is combination relational database model, and UML stores data in relations (tables). Ontology representation knowledge also has inference engine. popular frequently used model-ling by software developers. presents do...