著者
D. L. Lee, F. H. Lochovsky
タイトル
HYTREM-a hybrid text-retrieval machine for large databases
ページ
111-23
日時
January 1990
概要
The design of a text-retrieval machine, called HYTREM (hybrid text-retrieval machine), for the support of large unformatted text databases is described. A signature file is used as an access method to reduce the amount of data that need to be searched directly. Therefore, HYTREM consists of two major subsystems: a signature processor and a text processor. The signature processor is based on a world-parallel, bit-serial organization which is faster, more efficient, and more flexible than a word-serial, bit-parallel organization proposed by S.R. Ahuja and C.S. Roberts (1980). The text processor, called ALTEP (associative linear text processor), is a linear array of logic cells capable of matching regular expressions at a much higher speed than that of previous designs. Since both the signature processor and ALTEP are highly parallel processors, a high-speed multiple-response resolver is provided to facilitate data transfer between the processors and the controllers over a single common bus. Issues about th design of a cost-effective mass-storage system are also discussed. Performance and implementation issues for HYTREM are discussed
コメント
シグナチャマシンハード
カテゴリ
Signature
Category: Signature
Journal: IEEE Transactions on Computers
Comment: シグナチャマシンハード
Abstract: The design of a text-retrieval machine, called
        HYTREM (hybrid text-retrieval machine), for the
        support of large unformatted text databases is
        described. A signature file is used as an access
        method to reduce the amount of data that need to be
        searched directly. Therefore, HYTREM consists of two
        major subsystems: a signature processor and a text
        processor. The signature processor is based on a
        world-parallel, bit-serial organization which is
        faster, more efficient, and more flexible than a
        word-serial, bit-parallel organization proposed by
        S.R. Ahuja and C.S. Roberts (1980). The text
        processor, called ALTEP (associative linear text
        processor), is a linear array of logic cells capable
        of matching regular expressions at a much higher
        speed than that of previous designs. Since both the
        signature processor and ALTEP are highly parallel
        processors, a high-speed multiple-response resolver
        is provided to facilitate data transfer between the
        processors and the controllers over a single common
        bus. Issues about th design of a cost-effective
        mass-storage system are also discussed. Performance
        and implementation issues for HYTREM are discussed
Number: 1
Bibtype: Article
Author: D. L. Lee
        F. H. Lochovsky
Pages: 111-23
Month: jan
Title: HYTREM-a hybrid text-retrieval machine for large databases
Year: 1990
Volume: 39
Keyword: database management systems, special purpose
        computers, HYTREM, hybrid text-retrieval machine,
        large databases, large unformatted text databases,
        signature file, signature processor, text processor,
        bit-parallel organization, text processor, ALTEP,
        associative linear text processor, logic cells,
        regular expressions, multiple-response resolver,
        data transfer, controllers, single common bus,
        mass-storage system