document: Exploiting web search engines to search structured databases Web search engines often federate many user queries to relevant structured databases . For example , a product related query might be federated to a product database containing their descriptions and specifications . The relevant structured data items are then returned to the user along with web search results . However , each structured database is searched in isolation . Hence , the search often produces empty or incomplete results as the database may not contain the required information to answer the query . In this paper , we propose a novel integrated search architecture . We establish and exploit the relationships between web search results and the items in structured databases to identify the relevant structured data items for a much wider range of queries . Our architecture leverages existing search engine components to implement this functionality at very low overhead . We demonstrate the quality and efficiency of our techniques through an extensive experimental study .
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