Authors:
Roberto De Virgilio
and
Lorenzo Dolfi
Affiliation:
Università Roma Tre, Italy
Keyword(s):
Visualization of Semantic Applications, Semantic Annotation, Web Browsing, Centrality Indices.
Related
Ontology
Subjects/Areas/Topics:
Applications
;
Biomedical Engineering
;
Data Engineering
;
Enterprise Information Systems
;
Health Information Systems
;
Information Retrieval
;
Information Systems Analysis and Specification
;
Knowledge Management
;
Ontologies and the Semantic Web
;
Pattern Recognition
;
Society, e-Business and e-Government
;
Software Engineering
;
Web Information Systems and Technologies
Abstract:
Searching relevant information from Web may be a very tedious task. If people cannot navigate through the Web site, they will quickly leave. Thus, designing effective navigation strategies on Web sites is crucial. In this paper we provide and implement centrality indices to guide the user for an effective navigation of Web pages. We get inspiration from well-know location family problems to compute the center of a graph: a joint use of such indices guarantees the automatic selection of the best starting point. To validate our approach, we have developed a system that implements the techniques described in this paper on top of an engine for keyword-based search over RDF data. Such system exploits an interactive front-end to support the user in the visualization of both annotations and corresponding Web pages. Experiments over widely used benchmarks have shown very good results, in terms of both effectiveness and efficiency.