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HOW DOES DIALOG'S TARGET WORK

HOW DOES DIALOG'S TARGET WORK This article reports an attempt to understand how a new nonBoolean ranked output online search facility works. In December 1993, DataStar Dialog released a relevance ranking tool known as TARGET Dialog 1993b. There is considerable research activity into text retrieval using ranking methods, as instanced by the TREC experiments Harman 1993, and professional online searchers may wish to know exactly what the ranking algorithm does in order to be able to exploit the facility to best advantage. Though it has not been possible to crack the algorithm to the level of calculating its match to the nearest per cent, it is possible to see three or four factors at work in the way TARGET produces items ranked in decreasing order of match with a query. It is emphasised that the analysis presented here is based only on records from one bibliographic database. A more extensive and comparative study of bibliographic and fulltext databases would be needed to provide universal and definitive findings. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Online and CD-Rom Review Emerald Publishing

HOW DOES DIALOG'S TARGET WORK

Keen, E. Michael
Online and CD-Rom Review , Volume 18 (5): 4 – May 1, 1994
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References (3)

Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
1353-2642
DOI
10.1108/eb024502
Publisher site
See Article on Publisher Site

Abstract

This article reports an attempt to understand how a new nonBoolean ranked output online search facility works. In December 1993, DataStar Dialog released a relevance ranking tool known as TARGET Dialog 1993b. There is considerable research activity into text retrieval using ranking methods, as instanced by the TREC experiments Harman 1993, and professional online searchers may wish to know exactly what the ranking algorithm does in order to be able to exploit the facility to best advantage. Though it has not been possible to crack the algorithm to the level of calculating its match to the nearest per cent, it is possible to see three or four factors at work in the way TARGET produces items ranked in decreasing order of match with a query. It is emphasised that the analysis presented here is based only on records from one bibliographic database. A more extensive and comparative study of bibliographic and fulltext databases would be needed to provide universal and definitive findings.

Journal

Online and CD-Rom Review – Emerald Publishing

Published: May 1, 1994

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