Title:
データ管理装置、データ管理方法、およびデータ管理プログラム
Document Type and Number:
Japanese Patent JP6767825
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To accelerate the retrieval from a vast amount of data.SOLUTION: A data management device includes: a primary determination table having a region for storing identification information of object data; and a secondary determination table for storing the identification information of the object data by a list configuration. The presence or absence of the registration of the identification information is available in an address of a primary determination table corresponding to a hush value in which the identification information of the object data is hushed by a first hush function, and when the identification information is determined not to be registered, a predetermined processing is performed. When the identification information of the object data is registered in the address of the primary determination table, the predetermined processing for the object data is determined to be not necessary. When the identification information is registered in the secondary determination table by the registration determination part, the secondary determination table is referred to with the identification information of the object data hushed by the second hush function as a key, and whether the predetermined processing is necessary is determined.SELECTED DRAWING: Figure 1
Inventors:
Masajiro Iwasaki
Daisuke Miyazaki
Daisuke Miyazaki
Application Number:
JP2016182586A
Publication Date:
October 14, 2020
Filing Date:
September 20, 2016
Export Citation:
Assignee:
Yahoo Japan Corporation
International Classes:
G06F16/28; G06F16/22
Domestic Patent References:
| JP2010050600A |
Foreign References:
| WO2014155668A1 |
Attorney, Agent or Firm:
Yasushi Matsunuma
Taichi Sakai
Takeo Okita
Shinichi Watanabe
Taichi Sakai
Takeo Okita
Shinichi Watanabe