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Author Harrison, Malcolm C.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword Substring ♦ Subset ♦ Searching ♦ Signature ♦ Hashing ♦ Information retrieval ♦ Information compression
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: New York Univ., New York (Harrison, Malcolm C.)
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 3
Starting Page 777
Ending Page 779


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Source: ACM Digital Library