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URN etd-0803104-085504 Statistics This thesis had been viewed 2715 times. Download 1009 times. Author Jia-Yang Chen Author's Email Address firstname.lastname@example.org Department Computer Science and Enginerring Year 2003 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 62 Title Design and Implementation of an Ontology-based Portal Keyword Triple semantic web RDF portal Ontology frame-based frame-based Ontology portal RDF semantic web Triple Abstract With the problem of information explosion on the web, people need an efficient way to manage the information by marking it up with a semantic markup language, such as the Resource Description Language of W3C. The Semantic Web is an extension of the current Web where information is given well-defined meaning, better, enabling computers and people to process in cooperation. In this thesis we design and implement an architecture that is able to manage the metadata layer of the Semantic Web. The architecture consists of three parts: front end, knowledge warehouse and backend. The front end consists of service interfaces for user to access the content, including conceptual search and semantic navigation. The knowledge warehouse is a knowledge-based system built upon the schema of ontology. The back end provides functions of metadata collection from content providers. The architecture is implemented upon a frame-based system together with objected-oriented programming on the web. We have tested the resulting system as the ontology-based portal for collecting metadata from scientific web sites. We measure the performance between using frame-based system and logic programming system to access the knowledge warehouse. The experimental result shows that the former approach performs better that the other. Advisor Committee Ching-Long Yeh - advisor
Huei-Huang Chen - co-chair
Yao-Ming Yeh - co-chair
Files Date of Defense 2004-07-05 Date of Submission 2004-08-03