发明授权
- 专利标题： Information retrieval method, information retrieval apparatus, and computer product
- 专利标题（中）： 信息检索方法，信息检索装置和计算机产品
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申请号： US12418886申请日： 2009-04-06
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公开(公告)号： US08131721B2公开(公告)日： 2012-03-06
- 发明人: Masahiro Kataoka , Hiroyuki Torii , Masahiro Kurishima , Hideo Kasai
- 申请人： Masahiro Kataoka , Hiroyuki Torii , Masahiro Kurishima , Hideo Kasai
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Greer, Burns & Crain, Ltd.
- 主分类号： G06F7/00
- IPC分类号： G06F7/00 ; G06F17/30
摘要：
An information retrieval apparatus includes an acquiring unit that acquires a numerical value defining a boundary of a numerical range; a detecting unit that detects a number of places in and a head numeral of the numerical value; an extracting unit that extracts from a bit string group, a bit string indicating whether a numerical value in a numerical value group having the number of places and the head numeral is present in files subject to retrieval; a specifying unit that specifies a file corresponding to a bit in the extracted bit string, the bit indicating the presence of a numerical value of the numerical value group; a determining unit that determines whether a numerical value in the specified file meets the boundary condition; and a designating unit that, based on a determination by the determining unit designates the specified file to have a numerical value within the numerical range.