August 2011
Intermediate to advanced
476 pages
15h 31m
English
Content preview from Applied Semantic Web Technologies
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Learning of Social Ontologies in WWW ◾ 163
outlining technological issues only for the individual steps related to the query
ontology construction.
7.3.1.1 Query Disambiguation
In this step, each term of a free-form query is disambiguated, assessing its user-in-
tended meaning specied by a WordNet sense. Although in other lines of research
this process is accomplished by Latent Semantic Indexing (LSI) technology (Kotis
et al. 2006a), this implementation uses Vector Space Model (VSM) technology
(Raghavan and Wong 1986) due to the nature of available data (very few terms in
queries) and the need to reduce SAMOS response time. Specic VSM impl ...
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