DOCUMENT MANAGEMENT SYSTEM, DOCUMENT MANAGEMENT METHOD, AND DOCUMENT MANAGEMENT PROGRAM

• US 20150310004A1
• Filed: 11/22/2013
• Published: 10/29/2015
• Est. Priority Date: 11/30/2012
• Status: Active Grant

• Current Assignee: Fronteo, Inc.
• Original Assignee: Ubic, Inc.
• Inventors: MORIMOTO, Masahiro, SHIRAI, Yoshikatsu, TAKEDA, Hideki, HASUKO, Kazumi
• Granted Patent: US 9,594,757 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/35 Clustering; Classification
• CPC Class Codes: G06F 16/358 Browsing; Visualisation therefor
• CPC Class Codes: G06F 16/93 Document management systems
• CPC Class Codes: G06Q 50/18 Legal services

Abstract

It is possible to reduce a review load of a reviewer. A document management system acquires digital information recorded in a plurality of computers or a server and analyzes the acquired digital information for relevance to a lawsuit. The document management system includes a thread classification unit that verifies supplementary information of each piece of document data included in the digital information and classifies the document data into threads based on the supplementary information, a similarity analysis unit that extracts elements included in the supplementary information of the classified document data for each thread and analyzes similarity between the threads based on the extracted elements, and an integration unit that integrates the threads based on the similarity.

Claims

1. A document management system that acquires digital information recorded in a plurality of computers or a server and analyzes the acquired digital information, the document management system comprising:

a thread classification unit that verifies supplementary information of each piece of document data included in the digital information and classifies the document data into threads based on the supplementary information;

a similarity analysis unit that extracts elements included in the supplementary information of classified document data for each thread of the threads and analyzes similarity between the threads based on the elements;

an integration unit that integrates the threads based on the similarity to create integrated threads;

an extraction unit that extracts a predetermined number of pieces of document data from the integrated threads;

a screen display unit that presents a display of extracted document data on a screen;

a result reception unit that receives a determination result of relevance of the extracted document data from a user based on the display of the extracted document data;

a selection unit that classifies the extracted document data for each determination result based on the determination result and analyzes and selects an element commonly appearing in the classified document data;

an element recording unit that records the element;

a search unit that searches for the element recorded in the element recording unit to create a search result; and

a score calculation unit that calculates a score indicating relevance between the determination result and the extracted document data using the search result of the search unit and an analysis result of the selection unit.

2. The document management system according to claim 1, further comprising:

a document data classification unit that classifies the document data included in the digital information into single document data, main document data, dependent document data dependent on the main document data, and other document data,

wherein the thread classification unit classifies at least the single document data and the main document data.

3. The document management system according to claim 2,

wherein the other document data includes non-structured document data with no supplementary information, and

the thread classification unit refers to the content of the non-structured document data when classifying the non-structured document data.

4. The document management system according claim 1,

wherein the thread classification unit treats at least one of the title, creation date and time, updated date and time, and creator name of the document data as supplementary information.

6. The document management system according to claim 2,

wherein the integration unit integrates each piece of the dependent document data into the same thread of corresponding main document data.

7. The document management system according to claim 2,

wherein the thread classification unit further classifies each piece of the dependent document data into the same thread of corresponding main document data.

5. (canceled)

8. A document management method that acquires digital information recorded in a plurality of computers or a server and analyzes the acquired digital information, the document management method comprising:

a step of verifying supplementary information of each piece of document data included in the digital information and classifying the document data into threads based on the supplementary information;

a step of extracting elements included in the supplementary information of classified document data for each thread of the threads and analyzing similarity between the threads based on the elements;

a step of integrating the threads based on the similarity to create integrated threads;

a step of extracting a predetermined number of pieces of document data from the integrated threads;

a step of presenting a display of extracted document data on a screen;

a step of receiving a determination result of relevance of the extracted document data from a user based on the display of the extracted document data;

a step of classifying the extracted document data for each determination result based on the determination result and analyzing and selecting an element commonly appearing in the classified document data;

a step of recording the element;

a step of searching for a record element to create a search result; and

a step of calculating a score indicating relevance between the determination result and the extracted document data using the search result and an analysis result of an analysis of the element.

9. A system comprising:

at least one processor;

memory storing instructions configured to instruct the at least one processor to perform;

verifying supplementary information of each piece of document data included in digital information and classifying the document data into threads based on the supplementary information;

extracting elements included in the supplementary information of classified document data for each thread of the threads and analyzing similarity between the threads based on the elements;

integrating the threads based on the similarity to create integrated threads;

extracting a predetermined number of pieces of document data from the integrated threads;

presenting a display of extracted document data on a screen;

receiving a determination result of relevance of the extracted document data from a user based on the display of the extracted document data;

classifying the extracted document data for each determination result based on the determination result and analyzing and selecting an element commonly appearing in the classified document data;

recording the element;

searching for a record of the element to create a search result; and

calculating a score indicating relevance between the determination result and the extracted document data using the search result and an analysis result of an analysis of the element.