Document Type

Book Chapter

Date

2005

Embargo Period

1-14-2011

Keywords

Document Retrieval, document processing, query processing, Boolean, Vector Space, Probabilistic, Language Model

Language

English

Disciplines

Library and Information Science | Linguistics

Description/Abstract

Document Retrieval is the computerized process of producing a relevance ranked list of documents in response to an inquirer’s request by comparing their request to an automatically produced index of the documents in the system. Everyone uses such systems today in the form of web-based search engines. While evolving from a fairly small discipline in the 1940s, to a large, profitable industry today, the field has maintained a healthy research focus, supported by test collections and large-scale annual comparative tests of systems. A document retrieval system is comprised of three core modules: document processor, query analyzer, and matching function. There are several theoretical models on which document retrieval systems are based: Boolean, Vector Space, Probabilistic, and Language Model.

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