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Unformatted text preview: parck-Jones
& Willett (1997) for an overview). Although, information retrieval is a relatively
old research area where ﬁrst attempts for automatic indexing where made in
1975 (Salton et al. 1975), it gained increased attention with the rise of the World
Wide Web and the need for sophisticated search engines.
Even though, the deﬁnition of information retrieval is based on the idea of
questions and answers, systems that retrieve documents based on keywords, i.e.
systems that perform document retrieval like most search engines, are frequently
also called information retrieval systems.
The general goal of NLP is to achieve a
better understanding of natural language by use of computers (Kodratoff 1999).
Others include also the employment of simple and durable techniques for the
fast processing of text, as they are presented e.g. in Abney (1991). The range
of the assigned techniques reaches from the simple manipulation of strings to
the automatic processing of natural language inquiries. In addition, linguistic
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This note was uploaded on 06/19/2011 for the course IT 2258 taught by Professor Aymenali during the Summer '11 term at Abu Dhabi University.
- Summer '11