Entity-Based Keyword Search in Web Documents

The set of algorithms that compose a search engine rely on the infor- mation contained in the document representation to perform their task. Most of the traditional approaches represent a document as a flat list of words, but this model encounters difficulties in linking information regarding the same object but referring to it using different words. Moreover this approach to document modeling can’t give information about the relationship insisting among objects appearing into a document. What we propose in this work, is a novel approach to document representation and query answering, which addresses the aforemen- tioned problems through: i) Entity-based representation of objects referenced in documents, ii) Representation of the document aware of the relationship insisting among the objects appearing in the text. We provide a test implementation of the approach presented in the paper and present the result of the tests performed to measure its performance.