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The primary function of current Web search engines is essentially relevance ranking at the document level. However, myriad structured information about real-world objects embedded in static Web pages and online Web databases. In this paper, we propose a paradigm shift to enable searching at the object level. In traditional information retrieval models, documents are taken as the retrieval units and the content of a document is considered reliable. However, this reliability assumption is nodoi:10.1145/1242572.1242584 dblp:conf/www/NieMSWM07 fatcat:mljnj6sgdjattals2qddaef2qe