Title:
DATA SEARCHING SYSTEM, DEVICE, METHOD AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/070247
Kind Code:
A1
Abstract:
A data index unit 80 manages data of source tables. A data searching unit 90 searches the joinable source tables for the query table. A group indexing unit 81 divides each the source table into a collection of sets, and generates, for each divided set, a group of similar cells included in the set using a similarity function for calculating cell similarity. A data filtering unit 91 searches the source table including a set in which the number of pairs of a first cell included in a divided query table set and a second cell in a group including cells similar to the first cell exceeds a predetermined threshold.
Inventors:
DONG YUYANG (JP)
OYAMADA MASAFUMI (JP)
TAKEOKA KUNIHIRO (JP)
OYAMADA MASAFUMI (JP)
TAKEOKA KUNIHIRO (JP)
Application Number:
PCT/JP2019/039653
Publication Date:
April 15, 2021
Filing Date:
October 08, 2019
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G06F16/2458
Foreign References:
| US20170235803A1 | 2017-08-17 | |||
| US20080183693A1 | 2008-07-31 |
Attorney, Agent or Firm:
IWAKABE Fuyuki et al. (JP)
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