COMPRESSING THE DIGITAL LIBRARY

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dc.contributor.authorBell, Timothy C.eng
dc.contributor.authorMoffat, Alistaireng
dc.contributor.authorWitten, Ian H.eng
dc.date.accessioned2008-02-27T22:30:36Z
dc.date.available2008-02-27T22:30:36Z
dc.date.computerscience1999-05-27eng
dc.date.issued1994-03-01eng
dc.description.abstractThe prospect of digital libraries presents the challenge of sto ring vast amounts of information efficiently and in a way that facilitates rapid search and retrieval. Storage space can be reduced by appropriate compression techniques, and searching can be enabled by constructing a full-text index. But these two requirements are in conflict: the need for decompression increases access time, and the need for an index increases space requirements. This paper resolves the conflict by showing how (a) large bodies of text can be compressed and indexed into less than half the space required by the original text alone, (b) full-text queries (Boolean or ranked) can be answered in small fractions of a second, and (c) documents can be decoded at the rate of approximately one megabyte a second. Moreover, a document database can be compressed and indexed at the rate of several hundred megabytes an hour.eng
dc.description.notesWe are currently acquiring citations for the work deposited into this collection. We recognize the distribution rights of this item may have been assigned to another entity, other than the author(s) of the work.If you can provide the citation for this work or you think you own the distribution rights to this work please contact the Institutional Repository Administrator at digitize@ucalgary.caeng
dc.identifier.department1994-537-06eng
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/31147
dc.identifier.urihttp://hdl.handle.net/1880/46201
dc.language.isoEngeng
dc.publisher.corporateUniversity of Calgaryeng
dc.publisher.facultyScienceeng
dc.subjectComputer Scienceeng
dc.titleCOMPRESSING THE DIGITAL LIBRARYeng
dc.typeunknown
thesis.degree.disciplineComputer Scienceeng
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