Language processing device, language processing method and language processing program

• US 20060206307A1
• Filed: 12/20/2005
• Published: 09/14/2006
• Est. Priority Date: 03/09/2005
• Status: Active Grant

• Current Assignee: Fuji Xerox Company Limited (Xerox Holdings Corp.)
• Original Assignee: Fuji Xerox Company Limited (Xerox Holdings Corp.)
• Inventors: Sugihara, Daigo, Onda, Masanori, Masuichi, Hiroshi, Ashikaga, Hideaki, Kato, Masahiro, Satake, Masanori, Kimura, Shunichi, Yoshimura, Hiroki, Itonori, Katsuhiko
• Granted Patent: US 7,664,631 B2
• Time in Patent Office: Days
• US Class Current: 704/4
• CPC Class Codes: G06F 40/35 Discourse or dialogue representation

Abstract

According to an aspect of the present invention, a language processing device has a text input section and an anaphora analysis section. The text input section acquires text data. The anaphora analysis section analyzes whether a correct anaphora relation is included in the text data acquired by the text input section. The correct anaphora relation has an anaphor and an antecedent corresponding to the anaphor.

Claims

1. A language processing device comprising:

a text input section that acquires text data; and

an anaphora analysis section that analyzes whether a correct anaphora relation is included in the text data acquired by the text input section,

wherein the correct anaphora relation has an anaphor and an antecedent corresponding to the anaphor.

2. The language processing device according to claim 1, wherein the anaphora analysis section has a text part determination section, the text part determination section determines whether the text data acquired by the text input section is started from a beginning of a sentence.

3. The language processing device according to claim 1, wherein when the anaphora analysis analyzes that the correct anaphora relation is not included in the acquired text data, the anaphora analysis determines an antecedent corresponding to an anaphor from another part of text data.

4. The language processing device according to claim 1, wherein the anaphora analysis section has a text part determination section, the text part determination section determines whether the text data acquired by the text input section continues from a previous sentence.

5. The language processing device according to claim 2, wherein when the text part determination section determines that the acquired text data is not started from the beginning of a sentence, the anaphora analysis section analyzes that the correct anaphora relation is not included in the acquired text data.

6. The language processing device according to claim 1, further comprising:

a document format information extracting section that extracts document format information from the text data acquired by the text input section;

wherein the anaphora analysis section analyzes whether the correct anaphora relation is included in the acquired text data based on the document format information.

7. The language processing device according to claim 1, further comprising:

an anaphor detection section that detects an anaphor from the text data acquired by the text input section,

wherein the anaphora analysis section analyzes whether the correct anaphora relation is included in the acquired text data based on the anaphor detected by the anaphor detection section.

8. The language processing device according to claim 1, further comprising:

a document format information extracting section that extracts document format information from the text data acquired by said text input section; and

an anaphor detection section that detects an anaphor from the text data acquired by the text input section;

wherein the anaphora analysis section analyzes the correct anaphora relation based on the document format information and the anaphor detected by the anaphor detection section.

9. The language processing device according to claim 6, further comprising:

a document type classification section that classifies a document type of the text data acquired by the text input section,

wherein the document format information extracting section extracts document format information from the text data based on a document format information extraction rule corresponding to the type of document.

10. The language processing device according to claim 7, further comprising:

a document type classification section that extracts a document type of the text data acquired by the text input section,

wherein the anaphor detection section detects an anaphor from the text data based on an anaphor detection rule corresponding to the type of the document.

11. The language processing device according to claim 1, wherein the anaphora analysis section generates a rule for analyzing an anaphora relation based on the type of document.

12. The language processing device according to claim 1, wherein the anaphora analysis section is a binary-value classifier which decides whether the text data discontinues.

13. The language processing device according to claim 1, wherein the anaphora analysis section analyzes the anaphora relation based on a score, each word in the text data having a score.

14. The language processing device according to claim 1, wherein when the anaphora analysis section analyzes the anaphora relation and the correct anaphora relation is not included in the text data, the anaphora analysis section adds an expression suitable to an antecedent or an anaphora or a user adds the expression.

15. A language processing method comprising:

acquiring text data; and

analyzing whether a correct anaphora relation is included in the acquired text data,

wherein the correct anaphora relation has an anaphor and an antecedent corresponding to the anaphor.

16. The language processing method according to claim 15, wherein the analyzing is performed based on whether the acquired text data is started from a beginning of a sentence.

17. A storage medium readable by a computer, the storage medium storing a program of instructions executable by the computer to perform a function for processing language, the function comprising:

acquiring text data; and

analyzing whether a correct anaphora relation is included in the acquired text data, wherein the correct anaphora relation has an anaphor and an antecedent corresponding to the anaphor.

18. A language processing device comprising:

a text input means for acquiring text data;

a text part determination means for determining whether the text data acquired by said text input means is data indicating that the read sentence is part of a longer sentence presenting a single piece of information; and

an anaphora analysis processing means for identifying data indicating an anaphor included in the text data and data indicating an antecedent of the anaphor on the basis of a specific criterion, when the text data is determined by the text part determination means as data indicating that the read sentence is part of a longer sentence presenting a single piece of information; and

for identifying data indicating an anaphor included in the text data and data indicating an antecedent of the anaphor on the basis of another criterion except the criterion, when the text data is determined by the text part determination means as data indicating that the read sentence is not a part of a longer sentence presenting a single piece of information.

19. The language processing device according to claim 18, wherein the anaphora analysis processing means further identifies data indicating an anaphor included in the text data and data indicating an antecedent of the anaphor only when the text data is determined by the text part determination means as data indicating that the read sentence is not part of a longer sentence presenting a single piece of information, and outputs the identified data.