Information Retrieval (IR) approaches for semantic web search engines have become very populars in the last years. Popularization of diﬀerent IR libraries, like Lucene, that allows IR implementations almost out-of-the-box have make easier IR integration in Semantic Web search engines. However, one of the most important features of Semantic Web documents is the structure, since this structure allow us to represent
semantic in a machine readable format. In this paper we analyze the speciﬁc problems of structured IR and how to adapt weighting schemas for semantic document retrieval.
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