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Ranking (information retrieval)

About: Ranking (information retrieval) is a research topic. Over the lifetime, 21109 publications have been published within this topic receiving 435130 citations.


Papers
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Proceedings ArticleDOI
01 Aug 1994
TL;DR: The experiments show that on average a current generation natural language system provides better retrieval performance than expert searchers using a Boolean retrieval system when searching full-text legal materials.
Abstract: The results of experiments comparing the relative performance of natural language and Boolean query formulations are presented. The experiments show that on average a current generation natural language system provides better retrieval performance than expert searchers using a Boolean retrieval system when searching full-text legal materials. Methodological issues are reviewed and the effect of database size on query formulation strategy is discussed.

140 citations

Patent
10 Jun 1999
TL;DR: In this article, an integrated retrieval scheme retrieves data involved in a plurality of semi-structured documents scattering over open networks and collects the required information item by item from the semi-Structured documents through a unified interface without regard to differences in the document structures, presentation styles, and elements of the documents.
Abstract: An integrated retrieval scheme retrieves data involved in a plurality of semi-structured documents scattering over open networks and collects the required information item by item from the semi-structured documents through a unified interface without regard to differences in the document structures, presentation styles, and elements of the semi-structured documents. The search scheme receives a query consisting of search items and search conditions from a user (S200). The search scheme finds, according to location data that specifies the location of each of the semi-structured documents, the location of each semi-structured document that contains all search items (S210) and converts, if necessary, item presentation styles of the entered query into that of the location found semi-structured documents according to style conversion data (S220,S225,S230), and forms queries for the location found semi-structured documents, and transmits the queries to the found locations and obtains the location found semi-structured documents (S240), and extracts item data from the obtained semi-structured documents according to structure data being used to delimit document into items and attribute data being used for conditional retrieval, and prepares a search result (S240), and converts, if necessary, item presentation styles of the search result into the item presentation styles of each user according to the style conversion data (S250).

140 citations

Journal ArticleDOI
TL;DR: Citation analysis, which provides a clear picture of actual use of journals and their articles, is an effective way to determine a journal's influence.
Abstract: Citation analysis, which provides a clear picture of actual use of journals and their articles, is an effective way to determine a journal's influence.

139 citations

Book ChapterDOI
12 Jul 2001
TL;DR: A computational model is developed to determine the directional similarity between extended spatial objects, which forms a foundation for meaningful spatial similarity operators and confirms the cognitive plausibility of the similarity model.
Abstract: Like people who casually assess similarity between spatial scenes in their routine activities, users of pictorial databases are often interested in retrieving scenes that are similar to a given scene, and ranking them according to degrees of their match. For example, a town architect would like to query a database for the towns that have a landscape similar to the landscape of the site of a planned town. In this paper, we develop a computational model to determine the directional similarity between extended spatial objects, which forms a foundation for meaningful spatial similarity operators. The model is based on the direction-relation matrix. We derive how the similarity assessment of two direction-relation matrices corresponds to determining the least cost for transforming one direction-relation matrix into another. Using the transportation algorithm, the cost can be determined efficiently for pairs of arbitrary direction-relation matrices. The similarity values are evaluated empirically with several types of movements that create increasingly less similar direction relations. The tests confirm the cognitive plausibility of the similarity model.

139 citations

Proceedings ArticleDOI
11 Aug 2002
TL;DR: An evaluation of techniques that are designed to encourage web searchers to interact more with the results of a web search shows that the techniques are effective and efficient for information seeking.
Abstract: In this paper we present an evaluation of techniques that are designed to encourage web searchers to interact more with the results of a web search. Two specific techniques are examined: the presentation of sentences that highly match the searcher's query and the use of implicit evidence. Implicit evidence is evidence captured from the searcher's interaction with the retrieval results and is used to automatically update the display. Our evaluation concentrates on the effectiveness and subject perception of these techniques. The results show, with statistical significance, that the techniques are effective and efficient for information seeking.

139 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20241
20233,112
20226,541
20211,105
20201,082
20191,168