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Lecture Notes in Computer Science
In this paper, we address both standard and focused retrieval tasks based on comprehensible language models and interactive query expansion (IQE). Query topics are expanded using an initial set of Multi Word Terms (MWTs) selected from top n ranked documents. MWTs are special text units that represent domain concepts and objects. As such, they can better represent query topics than ordinary phrases or ngrams. We tested different query representations: bag-of-words, phrases, flat list of MWTs,doi:10.1007/978-3-642-12116-6_50 fatcat:adqlskqsi5ap7gpywojbhgy7ti