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Jascó, P.: Mapping algorithms to translate natural language questions into search queries for Web databases (1997) 0.03

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Source: Proceedings of the 18th National Online Meeting 1997, New York, 13.-15.5.1997. Ed.: M.E. Williams
Year: 1997

Ojala, M.: Commands that RANKle (1997) 0.02

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Source: Online. 21(1997) no.4, S.70-73
Year: 1997

Pfeifer, U.; Pennekamp, S.: Incremental processing of vague queries in interactive retrieval systems (1997) 0.02

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Year: 1997

Savoy, J.: Ranking schemes in hybrid Boolean systems : a new approach (1997) 0.02

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Source: Journal of the American Society for Information Science. 48(1997) no.3, S.235-253
Year: 1997

Robertson, S.E.; Sparck Jones, K.: Simple, proven approaches to text retrieval (1997) 0.02
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Abstract

This technical note describes straightforward techniques for document indexing and retrieval that have been solidly established through extensive testing and are easy to apply. They are useful for many different types of text material, are viable for very large files, and have the advantage that they do not require special skills or training for searching, but are easy for end users. The document and text retrieval methods described here have a sound theoretical basis, are well established by extensive testing, and the ideas involved are now implemented in some commercial retrieval systems. Testing in the last few years has, in particular, shown that the methods presented here work very well with full texts, not only title and abstracts, and with large files of texts containing three quarters of a million documents. These tests, the TREC Tests (see Harman 1993 - 1997; IP&M 1995), have been rigorous comparative evaluations involving many different approaches to information retrieval. These techniques depend an the use of simple terms for indexing both request and document texts; an term weighting exploiting statistical information about term occurrences; an scoring for request-document matching, using these weights, to obtain a ranked search output; and an relevance feedback to modify request weights or term sets in iterative searching. The normal implementation is via an inverted file organisation using a term list with linked document identifiers, plus counting data, and pointers to the actual texts. The user's request can be a word list, phrases, sentences or extended text.

Issue

May, 1997, Update of 1994 and 1996 versions.

Year

1997

Faloutsos, C.: Signature files (1992) 0.01

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Date: 7. 5.1999 15:22:48

Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.01

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Date: 1. 8.1996 22:08:06

Kleinberg, J.M.: Authoritative sources in a hyperlinked environment (1998) 0.01

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Content: Vorversionen auch in: Proceedings of the ACM-SIAM Symposium on Discrete Algorithms, 1998, und als IBM Research Report RJ 10076, May 1997.

Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996) 0.01

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Date: 12. 9.1996 13:56:22

Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996) 0.01

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Source: Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon

Burgin, R.: ¬The retrieval effectiveness of 5 clustering algorithms as a function of indexing exhaustivity (1995) 0.01

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Date: 22. 2.1996 11:20:06

Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.01

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Date: 22. 2.1996 13:14:10

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