Information processor and program for implementing information processor

• US 20040158558A1
• Filed: 07/22/2003
• Published: 08/12/2004
• Est. Priority Date: 11/26/2002
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Morimoto, Yasutsugu, Akira, Naoto, Koizumi, Atsuko, Kumai, Hiroyuki
• Application Number:
  US10/623,598
• Publication Number:
  US 20040158558A1
• Time in Patent Office: Days
• US Class Current: 707/3
• CPC Class Codes: G06F 16/353 into predefined classes

Abstract

Disclosed is a text mining method with steps for separating high frequency information and low frequency information and applying an ideal analysis method to each kind of information. Negative expressions and modality expressions are extracted from the low frequency information to assist in extracting valuable knowledge for risk management. Text classification technology by the conventional key word method is suitable for extracting and classifying high frequency knowledge but extracting valuable information for risk management or from the actual customer voice in the call center text database requires extracting the essential valuable knowledge from vast quantities of ordinary information. This method has a function to hold in a folder the document found by a keyword search, and a function to store the remaining text into a low frequency information folder, after having stored the high frequency information found by keyword search. A function is also provided for extracting modality expressions that express negative expressions and modalities as a unit to extract valuable knowledge for risk management from low frequency information.

Claims

1. An information processor comprising:

a memory unit for storing multiple data;

an association attaching unit for attaching common associations to data possessing a common word or term among the stored data; and

an analysis unit for analyzing said data,

wherein the analysis unit analyzes data with no associations by using a negative word dictionary, and data with associations is analyzed by different analysis.

2. An information processor according to claim 1, comprising:

an input unit; and

a unit to search said database using a key word received by way of said input unit,

wherein said association attaching unit attaches the associations to the extracted retrieval result data.

3. An information processor according to claim 2, wherein said input unit receives a specified count extracted in said retrieval unit, and

said analysis unit analyzes data possessing associations extracted by a count larger than said count, and data possessing associations extracted by a count smaller than said count, by a different analysis method.

4. An information processor according to claim 1, wherein said negative dictionary comprises a first dictionary storing words in Chinese character units and a second dictionary for storing words containing said Chinese characters, and

said analysis unit searches from said data for words stored in said first and said second dictionary and from words containing Chinese characters retrieved from said first dictionary displays words not in said second dictionary on said display unit, and from among said displayed words stores specified terms in said second dictionary.

5. An information processor according to claim 2, wherein said negative dictionary comprises a first dictionary storing words in Chinese character units and a second dictionary storing words containing said Chinese characters, and

said analysis unit searches from said data for words stored in said first and said second dictionary and from words containing Chinese characters retrieved from said first dictionary displays words not in said second dictionary on said display unit, and from among said displayed terms stores specified words in said second dictionary.

6. An information processor according to claim 3, wherein said negative dictionary comprises a first dictionary storing words in Chinese character units and a second dictionary storing words containing said Chinese characters, and

said analysis unit searches from said data for words stored in said first and said second dictionary and from words containing Chinese characters retrieved from said first dictionary displays words not in said second dictionary on said display unit, and from among said displayed words stores specified words in said second dictionary.

7. An information processor according to claim 1, further comprising a dictionary for storing words expressing modalities, wherein said analysis unit performs analysis using said dictionary.

8. An information processor according to claim 2, further comprising a dictionary for storing words expressing modalities, wherein said analysis unit performs analysis using said dictionary.

9. An information processor according to claim 2, comprising:

a unit to calculate the association level between a word and a word from said stored data;

a unit for extracting key terms from said stored data;

a unit for clustering said key term using said information association level and generating a thesaurus overview; and

a display unit for displaying said generated thesaurus overview,

wherein said display unit displays key terms belonging to clusters of the thesaurus overview selected by said input unit, and

key terms specified by said command input unit from said displayed key terms are set as said key words.

10. An information processor comprising:

a first dictionary for storing words in Chinese character units;

a second dictionary for restoring words containing said Chinese characters;

a display unit; and

an input unit,

wherein a search unit for searching for words stored in second dictionary from data recorded in a memory unit, and said search unit searches also for words containing Chinese characters stored in said first dictionary, and displays retrieved words containing Chinese characters stored in said first dictionary on a display unit, and stores words specified from among said displayed words into said second dictionary.

11. An information processor according to claim 10 comprising a third dictionary for accumulating words that are not specified.

12. An information processor according to claim 10, wherein said first dictionary stores Chinese characters possessing a negative meaning, and

said second dictionary stores words having a negative meaning.

13. An information processor according to claim 11, wherein said first dictionary stores Chinese characters possessing a negative meaning, and

said second dictionary stores words having a negative meaning.

14. A program comprising:

a step for accepting the entry of a key word;

a step for searching multiple data stored in a memory unit containing said multiple data by using a key word;

a step for attaching a common association to the extracted results of said search; and

a step for analyzing data not attached with associations by using said negative word dictionary, and analyzing data attached with associations using data that is not said negative word dictionary.