Information classification system, information processing apparatus, information classification method and program

Patent metadata

Field	Value
Publication number	US-9245012-B2
Application number	US-201213437082-A
Country	US
Kind code	B2
Filing date	Apr 2, 2012
Priority date	Mar 28, 2008
Publication date	Jan 26, 2016
Grant date	Jan 26, 2016

Abstract

An information classification system includes a server including a knowledge base that receives classification information to be classified, conducts language analysis of the classification information to acquire and classify a plurality of keywords into elements made up of a classification target word and a related word that modifies the classification target word, and conducts a search with the related word, so as to assign a classification identification value to the information; a classification candidate extraction section that extracts the classification identification value that the knowledge base assigns to generate an automatic classification result; and a classification update section that receives the automatic classification result and corrects registered items in the knowledge base with a correction value received through a GUI for classification confirmation while referring to log data that is a processing history about automatic classification for the language analysis and the element classification.

First claim

What is claimed is:

1. An information classification system, comprising:
a knowledge base that receives classification information to be classified as a word string, conducts language analysis of the classification information to acquire a plurality of keywords that the classification information includes and classify the plurality of keywords into elements made up of a classification target word and a related word that modifies the classification target word, and conducts a search with the related word being for a judgment condition for decision of the classification while separating the classification target word from the related word, to assign a classification identification value to the information;
a classification candidate extraction section that extracts the classification identification value that the knowledge base assigns to generate an automatic classification result; and
a classification update section that receives the automatic classification result, displays a graphical user interface (GUI) for classification confirmation allowing confirmation of correctness of the automatic classification result, and corrects registered items in the knowledge base with a correction value received through the GUI for classification confirmation while referring to log data that is a processing history about automatic classification for the language analysis and the element classification;
wherein the knowledge base comprises:
a language analysis section that extracts a plurality of keywords from the classification information while referring to a word dictionary database; and
a language element classification section that classifies the extracted plurality of keywords into the classification target word and the related word that modifies the classification target word by referring to a classification database and when a binary condition is registered for the classification target word, prioritizes a judgment based on the binary condition.

2. The information classification system according to claim 1 , wherein
the word dictionary database includes a morpheme keyword, an expression instability keyword, and a higher/lower level concept keyword registered therein, and
the classification database includes a main classification table, an auxiliary classification table, and a binary condition table registered therein, the main classification table associating the classification target word with the classification identification value, the auxiliary classification table associating the related word that modifies the classification target word with a semantic attribute, and the binary condition table associating a binary condition set for the classification identification value about the classification target word with a judgment result using the binary condition.

3. The information classification system according to claim 2 , wherein the classification update section receives correction of a reference condition for correcting a binary condition or a weighting via the GUI for classification confirmation, and updates the binary condition table by correcting the binary condition.

4. The information classification system according to claim 3 , wherein the classification database further includes an additional attribute registered therein that modifies the classification target word, and the binary condition is extracted from the related word, the additional attribute and the classification identification value and is registered in the binary condition table together with a result of the extraction.

5. The information classification system according to claim 4 , wherein the classification information is a string of words semantically related in a short sentence that includes at least a classification target word.

6. The information classification system according to claim 1 , wherein the information classification system receives the classification information and the correction via a network, the correction being conducted with an expert user's know-how reflected thereon.

7. An information classification apparatus, comprising:
a knowledge base that receives classification information to be classified as a word string, conducts language analysis of the classification information to acquire a plurality of keywords that the classification information includes and classify the plurality of keywords into elements made up of a classification target word and a related word that modifies the classification target word, and conducts a search with the related word being for a judgment condition for decision of the classification while separating the classification target word from the related word, so as to assign a classification identification value to the information;
a classification candidate extraction section that extracts the classification identification value that the knowledge base assigns to generate an automatic classification result; and
a classification update section that receives the automatic classification result, displays a graphical user interface (GUI) for classification confirmation allowing confirmation of correctness of the automatic classification result, and corrects registered items in the knowledge base with a correction value received through the GUI for classification confirmation while referring to log data that is a processing history about automatic classification for the language analysis and the element classification;
wherein the knowledge base comprises:
a language analysis section that extracts a plurality of keywords from the classification information while referring to a word dictionary database; and
a language element classification section that classifies the extracted plurality of keywords into the classification target word and the related word that modifies the classification target word by referring to a classification database and when a binary condition is registered for the classification target word, prioritizes a judgment based on the binary condition.

8. The information classification apparatus according to claim 7 , wherein
the word dictionary database includes a morpheme keyword, an expression instability keyword, and a higher/lower level concept keyword registered therein, and
the classification database includes a main classification table, an auxiliary classification table, and a binary condition table registered therein, the main classification table associating the classification target word with the classification identification value, the auxiliary classification table associating the related word that modifies the classification target word with a semantic attribute, and the binary condition table associating a binary condition set for the classification identification value about the classification target word with a judgment result using the binary condition.

9. The information classification apparatus according to claim 8 , wherein the classification database further includes an additional attribute registered therein that modifies the classification target word, and the binary condition is extracted from the related word, the additional attribute and the classification identification value and is registered in the binary condition table together with the judgment result.

10. The information classification apparatus according to claim 9 , wherein the classification information is a string of words semantically related in a short sentence that includes at least a classification target word.

11. An information classification method executed by an information classification apparatus that classifies information, the method comprising the steps executed by the information classification apparatus of:
receiving classification information to be classified

Assignees

• Maruyama Daisuke
• Aoki Kazuo
• Ishii Takehiko
• IBM

Inventors

• Maruyama Daisuke
• Aoki Kazuo
• Ishii Takehiko

Classifications

• G06F16/353 Primary

  into predefined classes · CPC title

• G06F17/30707 Primary

  Physics · mapped topic