Defect predicate expression extraction
First Claim
1. A defect predicate expression extraction method executed by a processor device for extracting predicate expressions representing defects from text data related to use of products, the method comprising:
- storing in a first predicate modifying expression storage unit, as predicate modifying expressions for detecting defect expressions, at least one of predicate modifying expressions representing suddenness and predicate modifying expressions representing repeatability;
detecting, in said text data, expressions matching each of the said stored predicate modifying expressions for detecting defect expressions and extracting, as a candidate for a predicate expression representing a defect, a predicate expression occurring in a neighborhood of each of said detected expressions matching each of the said stored predicate modifying expressions for detecting defect expressions in said text data;
storing in a second predicate modifying expression storage unit, as predicate modifying expressions for detecting normality expressions, predicate modifying expressions representing normality;
detecting, in said text data, expressions matching each of the said stored predicate modifying expressions for detecting normality expressions and extracting, as a predicate expression representing normality, a predicate expression occurring in a neighborhood of each of the said detected expressions matching each of the said stored predicate modifying expressions for detecting normality expressions in said text data; and
acquiring, as said predicate expressions representing defects, predicate expressions remaining after said extracted predicate expressions are removed from a list of said predicate expressions extracted as said candidates for said predicate expressions representing defects.
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Abstract
A defect predicate expression extraction device. The device extracts, as candidates for predicate expressions representing defects, predicate expressions occurring in the neighborhood of predicate modifying expressions representing suddenness or predicate modifying expressions representing repeatability. The defect predicate expression extraction device further extracts, as predicate expressions representing normality, predicate expressions occurring in the neighborhood of predicate modifying expressions representing normality and extracts predicate expressions representing defects by removing the predicate expressions representing normality from a list of the candidates for predicate expressions representing defects.
26 Citations
20 Claims
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1. A defect predicate expression extraction method executed by a processor device for extracting predicate expressions representing defects from text data related to use of products, the method comprising:
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storing in a first predicate modifying expression storage unit, as predicate modifying expressions for detecting defect expressions, at least one of predicate modifying expressions representing suddenness and predicate modifying expressions representing repeatability; detecting, in said text data, expressions matching each of the said stored predicate modifying expressions for detecting defect expressions and extracting, as a candidate for a predicate expression representing a defect, a predicate expression occurring in a neighborhood of each of said detected expressions matching each of the said stored predicate modifying expressions for detecting defect expressions in said text data; storing in a second predicate modifying expression storage unit, as predicate modifying expressions for detecting normality expressions, predicate modifying expressions representing normality; detecting, in said text data, expressions matching each of the said stored predicate modifying expressions for detecting normality expressions and extracting, as a predicate expression representing normality, a predicate expression occurring in a neighborhood of each of the said detected expressions matching each of the said stored predicate modifying expressions for detecting normality expressions in said text data; and acquiring, as said predicate expressions representing defects, predicate expressions remaining after said extracted predicate expressions are removed from a list of said predicate expressions extracted as said candidates for said predicate expressions representing defects. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A defect predicate expression extraction device including a memory and a processor device configured to extract predicate expressions representing defects from text data related to use of products, comprising:
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a predicate modifying expression storage unit for detecting defect expressions, wherein said predicate modifying expression storage unit stores at least one of predicate modifying expressions representing suddenness and predicate modifying expressions representing repeatability; a defect predicate expression candidate extraction unit for detecting, in said text data, expressions matching each of the said predicate modifying expressions stored in said predicate modifying expression storage unit for detecting defect expressions, and extracting, as a candidate for a predicate expression representing a defect, a predicate expression occurring in a neighborhood of each of said detected expressions matching each of the said predicate modifying expressions stored in said predicate modifying expression storage unit for detecting defect expressions in said text data; a predicate modifying expression storage unit for detecting normality expressions, wherein said predicate modifying expression storage unit stores predicate modifying expressions representing normality; a normality predicate expression extraction unit for detecting, in said text data, expressions matching each of the said predicate modifying expressions stored in said predicate modifying expression storage unit for detecting normality expressions, and extracting, as a predicate expression representing normality, a predicate expression occurring in a neighborhood of each of the said detected expressions matching each of the said predicate modifying expressions stored in said predicate modifying expression storage unit for detecting normality expressions in said text data; and a defect predicate expression acquisition unit for acquiring, as said predicate expressions representing defects, predicate expressions remaining after said predicate expressions extracted by said normality predicate expression extraction unit are removed from a list of said predicate expressions extracted as candidates for said predicate expressions representing defects. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer program product having a non-transitory computer readable medium tangibly embodying computer readable instructions which, when executed, cause a computer to carry out the steps of a method for extracting predicate expressions representing defects from text data related to use of products, the method comprising:
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storing in a first predicate modifying expression storage module, as predicate modifying expressions for detecting defect expressions, at least one of predicate modifying expressions representing suddenness and predicate modifying expressions representing repeatability; detecting, in said text data, expressions matching each of the said stored predicate modifying expressions for detecting defect expressions and extracting, as a candidate for a predicate expression representing a defect, a predicate expression occurring in a neighborhood of each of the said detected expressions matching each of the said stored predicate modifying expressions for detecting defect expressions in said text data; storing in a second predicate modifying expression storage module, as predicate modifying expressions for detecting normality expressions, predicate modifying expressions representing normality; detecting, in said text data, expressions matching each of the said stored predicate modifying expressions for detecting normality expressions and extracting, as a predicate expression representing normality, a predicate expression occurring in a neighborhood of each of the said detected expressions matching each of the said stored predicate modifying expressions for detecting normality expressions in said text data; and acquiring, as said predicate expressions representing defects, predicate expressions remaining after said extracted predicate expressions are removed from a list of said predicate expressions extracted as said candidates for said predicate expressions representing defects. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification