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Author Mullin, James K.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword Inverted files ♦ Query ♦ Multi-attribute retrieval ♦ File update ♦ Information retrieval ♦ File organization ♦ Combined index files
Abstract In a paper in the November 1970 Communications of the ACM, V.Y. Lum introduced a technique of file indexing named combined indices. This technique permitted decreased retrieval time at the cost of increased storage space. This paper examines combined indices under conditions of file usage with different fractions of retrieval and update. Tradeoff curves are developed to show minimal cost of file usage by grouping various partially combined indices.
Description Affiliation: Univ. of Western Ontario, London, Canada (Mullin, James K.)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-08-01
Publisher Place New York
Journal Communications of the ACM (CACM)
Volume Number 14
Issue Number 12
Page Count 2
Starting Page 775
Ending Page 776


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Source: ACM Digital Library