Information Retrieval and Trainable Natural Language Processing

The initial goal was to use simple techniques borrowed from the MITRE's message understanding system to improve a standard IR system. The AA. decided to modify SMART behavior via pre- and postprocesses. The preprocess intended to improve Smart is fairly simple. Its aim is to remove material from the queries that is not useful, and is in fact possibily misleading. Another preprocess is used to identified particularly salient keywords and phrases used in each query, based on a number of simple heuristics, beginning with either the title field or the first sentence of the narrative. The postprocess is employed to improve the ordering of the returned documents, based on the presence or absence of the keywords and phrases identified