The last chapter covered a number of powerful methods for indexing and retrieval based largely on word stems in text. In this chapter, attention is turned to another major area of information retrieval (IR) research, the application of linguistic methods. These methods are based on techniques called natural language processing (NLP), which derive from the field of computational linguistics. The chapter begins with an overview of language and computational linguistics. The focus then turns to NLP methods used in IR. As with the last chapter, a perspective of scalability and evaluation is maintained.
KeywordsInformation Retrieval Noun Phrase Natural Language Process Relative Clause Information Retrieval System
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