Patent application EP17166790A (EP), filed 2017-04-18
Publication number: EP3236367A2
Title: ENCODING PROGRAM, ENCODING METHOD, ENCODING DEVICE, RETRIEVAL PROGRAM, RETRIEVAL METHOD, AND RETRIEVAL DEVICE
Abstract: An encoding device (100) encodes a target file by using a static dictionary (121) and a dynamic dictionary (122). The encoding device (100) generates index information of the target file by folding a file axis and a word axis of the index information of the target file utilizing base numbers, respectively, the index information indicates presence information of words registered in the static dictionary (121) and the dynamic dictionary (122). The encoding device (100) generates difference information of the index information when the target file is update, the difference information indicating difference of the index information with respect to the file axis direction or the word axis direction.
IPC codes: G06F  17/    30            A I
G06F  16/    22            A I
G06F  16/    23            A I
G06F  16/    31            A I
Claims: number: 1
text: An encoding program that causes a computer to execute a process comprising:
number: 2
text: The encoding program according to claim 1, wherein the generating (114) the difference information includes:
number: 3
text: The encoding program according to claim 1, wherein
the generating the index information (113) further includes generating second index information by folding the file axis of second index information indicating presence information of the target file utilizing a specific base number, and
the generating the difference information (114) includes:
number: 4
text: The encoding program according to claim 1, wherein a size of each of the file axis and the word axis corresponds to a number of bits according to a size of a register.
number: 5
text: An encoding method to be executed by a computer, the method comprising:
number: 6
text: An encoding device comprising:
number: 7
text: A retrieval program that causes a computer to execute a process comprising:
number: 8
text: A retrieval method to be executed by a computer, the method comprising:
number: 9
text: A retrieval device comprising:
Office action: search_report, dated 2017-10-25
Prior art cited: ref_id: WO2013038527A1
ref_type: patent
severity: background
ref_id: JPH10261969A
ref_type: patent
severity: background
ref_id: JPH0830633A
ref_type: patent
severity: background
ref_id: JPH10240754A
ref_type: patent
severity: background
ref_id: - NISHIDA KESUKE: "Google wo Sasaeru Gijutsu", KUBAUHIKI KAISHA GIJUTSU, 25 April 2008 (2008-04-25)
ref_type: npl
severity: background
ref_id: - SEKIGUCHI KOJI: "ApacheLucene Nyumon", KUBAUHIKI KAISHA GIJUTSU HYOURONSHA, 25 June 2006 (2006-06-25)
ref_type: npl
severity: background
ref_id: - Andrzej Bialecki ET AL, "Apache Lucene 4", Portland, OR USA, (20120816), pages 17 - 24, URL: http://opensearchlab.otago.ac.nz/paper_10.pdf, (20161209), XP055327756 [I] 1-9 * section 5;; figure 3 *
ref_type: npl
severity: background
Final disposition: pending (2017-10-25)