We present a way of building ontologies that proceeds in a bottom-up fashion, defining concepts as clusters of concrete XML objects. Our rough bottom-up ontologies are based on simple relations like association and inheritance, as well as on value restrictions, and can be used to enrich and update existing upper ontologies. Then, we show how automatically generated assertions based on our bottom-up ontologies can be associated with a flexible degree of trust by nonintrusively collecting user feedback in the form of implicit and explicit votes. Dynamic trust-based views on assertions automatically filter out imprecisions and substantially improve metadata quality in the long run. © 2007 IEEE

Ceravolo, P., Damiani, E., Viviani, M. (2007). Bottom-up extraction and trust-based refinement of ontology metadata. IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING, 19(2), 149-163 [10.1109/TKDE.2007.23].

Bottom-up extraction and trust-based refinement of ontology metadata

Damiani, E;Viviani, M.
2007

Abstract

We present a way of building ontologies that proceeds in a bottom-up fashion, defining concepts as clusters of concrete XML objects. Our rough bottom-up ontologies are based on simple relations like association and inheritance, as well as on value restrictions, and can be used to enrich and update existing upper ontologies. Then, we show how automatically generated assertions based on our bottom-up ontologies can be associated with a flexible degree of trust by nonintrusively collecting user feedback in the form of implicit and explicit votes. Dynamic trust-based views on assertions automatically filter out imprecisions and substantially improve metadata quality in the long run. © 2007 IEEE
Articolo in rivista - Articolo scientifico
Ad hoc conceptualization; Bottom-up ontology; Fuzzy clustering techniques; Metadata extraction and maintenance; Semantic web; Trusted assertions; Information Systems; Computer Science Applications1707 Computer Vision and Pattern Recognition; Computational Theory and Mathematics
English
2007
19
2
149
163
none
Ceravolo, P., Damiani, E., Viviani, M. (2007). Bottom-up extraction and trust-based refinement of ontology metadata. IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING, 19(2), 149-163 [10.1109/TKDE.2007.23].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/174891
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