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Ontologies is playing an increasingly important role in knowledge management and the Semantic Web. The tourism information ontology is becoming a core research field in the realm of information retrieval. An ontology construction method based on Formal Concept Analysis (FCA) to extract domain ontology from unstructured text documents is proposed. Under the framework of our ontology construction method,...
In order to improve the recall ratio and precision ratio in knowledge retrieval of the product-design process, a semantic-oriented framework of product-design knowledge retrieval is presented. In this framework, the rule model is established to improve the ability of intelligent inference and solve the problem of polysemy. Then ontology model is established to improve the ability of semantic extension...
Ontology methods, construction of the repository is divided into knowledge acquisition and knowledge representation. If you want to break through the limitations of information retrieval. Should get the computer to have the ability of automatic query, understand and information retrieval. Can first establish a common vocabulary used in the tax area. Assisted by experts in the field, giving the corresponding...
Knowledge management and retrieval are important parts of an e-learning system. The retrieval intention is hard to express by traditional keywords based retrieval mode. In this paper, based on analyzing keywords in semantic layer, semantic similarity is calculated to catch the user's retrieval intention. Finally, the proper semantic mapping from keywords to concepts in knowledge base is realized....
Medicine is a very complex science organized in a variety of disciplines. It is very difficult for a medical professional to rely only on his knowledge gained through school and practice. Aside of already known PDA medical assistants, intra-hospital consultations, Web-forums, etc., our goal is to leverage the power of modern ICT to provide a system dedicated especially to doctors, for the purpose...
We present a knowledge management system for mathematics suggesting a combination of an information retrieval system with social networking techniques to overcome information flood in mathematical and natural scientific texts, and problems of merging databases within the system to structure our data efficiently. With regard to the increasing demand of knowledge management systems in all fields, especially...
Knowledge visualization and retrieval are the key techniques to implement effective knowledge management. Traditional research on knowledge map emphasizes on building global view of knowledge base, but ignores its support to knowledge retrieval. In this paper, a searchable knowledge map model is proposed. Based on this model, we extent the search-ability of knowledge map and propose three practical...
E-learning aims to deliver individualized, comprehensive, dynamic learning content in real time, aiding the development of communities of knowledge. By incorporating semantic Web technologies, this paper proposes a knowledge portal with underlying distributed learning repositories to effectively support the knowledge process, empowering flexible knowledge acquiring and collecting, knowledge refinement...
The Web was projected to support resource sharing at global level. Nowadays, this resource sharing is very limited, mainly respect to imperfect information retrieval and hidden Web. The semantic Web comes up as a possible solution to such limitations. The virtual communities of practice are groups of people who get in with each other virtually and share their knowledge. The use of semantic Web technologies...
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