POLARITY ESTIMATION SYSTEM, INFORMATION DELIVERY SYSTEM, POLARITY ESTIMATION METHOD, POLARITY ESTIMATION PROGRAM AND EVALUATION POLARITY ESTIMATIOM PROGRAM

• US 20100017391A1
• Filed: 11/20/2007
• Published: 01/21/2010
• Est. Priority Date: 12/18/2006
• Status: Abandoned Application

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Mizuguchi, Hironori, Tsuchida, Masaaki, Kusui, Dai
• Application Number:
  US12/448,010
• Publication Number:
  US 20100017391A1
• Time in Patent Office: Days
• US Class Current: N/A
• CPC Class Codes: G06Q 10/10 Office automation; Time management

Abstract

An evaluation polarity of reputation information with an unknown evaluation polarity is estimated by utilizing reputation information with a known evaluation polarity. The present polarity estimation system is a polarity estimation system for estimating an evaluation polarity indicating whether reputation information is positive or negative, and includes a reputation information storage part that precedently stores reputation information with a known evaluation polarity; and a polarity estimating means for estimating an evaluation polarity of reputation information with an unknown evaluation polarity on the basis of the reputation information with the known evaluation polarity precedently stored in the reputation information storage part.

Claims

1-52. -52. (canceled)

53. A polarity estimation system for estimating an evaluation polarity indicating whether reputation information is positive or negative, comprising:

an evaluative expression storage part that stores an evaluative expression corresponding to an expression of evaluation of a subject and an evaluative expression polarity indicating whether the evaluative expression includes a positive expression or a negative expression correspondingly to each other;

a reputation information storage part that stores reputation information and an evaluation polarity of the reputation information correspondingly to each other; and

a polarity estimating unit that estimates an evaluation polarity of reputation information with an unknown evaluation polarity on the basis of the evaluative expression and the evaluative expression polarity stored in the evaluative expression storage part and estimates the evaluation polarity of the reputation information with the unknown evaluation polarity on the basis of the reputation information and the evaluation polarity stored in the reputation information storage part,

wherein the reputation information storage part stores, correspondingly to the reputation information, acquirement time information indicating time when the reputation information was acquired,

the polarity estimating unit includes a weighting unit that performs prescribed weighting processing on the evaluation polarity corresponding to the reputation information stored in the reputation information storage part on the basis of the acquirement time information stored in the reputation information storage part, and

the weighting unit estimates the evaluation polarity of the reputation information with the unknown evaluation polarity on the basis of an evaluation polarity resulting from the weighting processing and the reputation information stored in the reputation information storage part.

54. The polarity estimation system according to claim 53,

wherein the reputation information storage part stores, correspondingly to the reputation information, evaluator information indicating an evaluator having evaluated the reputation information, and

the polarity estimating unit estimates the evaluation polarity of the reputation information with the unknown evaluation polarity on the basis of the reputation information and the evaluator information stored in the reputation information storage part.

55. A polarity estimation system, in which reputation information including a subject to be evaluated, an attribute expression corresponding to an attribute of the subject and an evaluative expression corresponding to an expression of evaluation of the subject is input for estimating an evaluation polarity indicating whether the input reputation information is positive or negative, comprising:

an evaluative expression storage part that stores an evaluation polarity corresponding to an evaluative expression;

a reputation information storage part that stores reputation information and an evaluation polarity corresponding to the reputation information; and

a polarity estimating unit that estimates the evaluation polarity of the input reputation information on the basis of the evaluation polarity stored in the evaluative expression storage part and the reputation information with the known evaluation polarity stored in the reputation information storage part and calculates, as the evaluation polarity, a polarity degree corresponding to a positive degree or a negative degree of the reputation information,

wherein the polarity estimating unit calculates a polarity degree corresponding to an attribute expression included in the reputation information with the known evaluation polarity, a polarity degree corresponding to a subject included in the reputation information and a polarity degree corresponding to an evaluative expression included in the reputation information, and

the polarity estimating unit calculates a comprehensive polarity degree obtained by comprehensively integrating a polarity degree corresponding to the attribute expression, a polarity degree corresponding to the subject and a polarity degree corresponding to the evaluative expression calculated with respect to the input reputation information on the basis of one of the calculated polarity degrees or a set of two or more of the calculated polarity degrees calculated with respect to the reputation information with the known evaluation polarity.

56. The polarity estimation system according to claim 55,

wherein the polarity estimating unit obtains the comprehensive polarity degree by calculating one of or an average, a sum or a ratio of two or more of the polarity degree corresponding to the attribute expression, the polarity degree corresponding to the subject and the polarity degree corresponding to the evaluative expression.

57. The polarity estimation system according to claim 55,

wherein the polarity estimating unit obtains the polarity degree corresponding to the attribute expression by obtaining a sum of polarity degrees corresponding to reputation information, out of the reputation information stored in the reputation information storage part, including the attribute expression included in the input reputation information, by obtaining an average of the polarity degrees corresponding to the reputation information including the attribute expression included in the input reputation information or by calculating a ratio of the reputation information including the attribute expression included in the input reputation information.

58. The polarity estimation system according to claim 55,

wherein the polarity estimating unit obtains the polarity degree corresponding to the subject by obtaining a sum of polarity degrees corresponding to reputation information, out of the reputation information stored in the reputation information storage part, including the subject included in the input reputation information, by obtaining an average of the polarity degrees corresponding to the reputation information including the subject included in the input reputation information or by calculating a ratio of the reputation information including the subject included in the input reputation information.

59. The polarity estimation system according to claim 55,

wherein the polarity estimating unit obtains the polarity degree corresponding to the evaluative expression by obtaining a sum of polarity degrees corresponding to reputation information, out of the reputation information stored in the reputation information storage part, including the evaluative expression included in the input reputation information, by obtaining an average of the polarity degrees corresponding to the reputation information including the evaluative expression included in the input reputation information or by calculating a ratio of the reputation information including the evaluative expression included in the input reputation information.

60. The polarity estimation system according to claim 55,

wherein the polarity estimating unit calculates the polarity degree with a weight given in the order of time when the reputation information was acquired.

61. The polarity estimation system according to claim 55,

wherein the polarity estimating unit calculates the polarity degree with respect to an evaluator type corresponding to a type of an evaluator having evaluated the reputation information.

62. The polarity estimation system according to claim 55,

wherein the polarity estimating unit calculates the polarity degree with respect to each of an age, a sex, an occupation, an interest and a purchased product of an evaluator as an evaluator type for the reputation information.

63. An information delivery system comprising:

a reputation information delivery system that delivers reputation information; and

an evaluation polarity estimation system that estimates an evaluation polarity indicating whether reputation information is positive or negative,

wherein the evaluation polarity estimation system includes;

an evaluative expression storage part that stores an evaluation polarity corresponding to an evaluative expression;

a reputation information storage part that stores reputation information and an evaluation polarity corresponding to the reputation information; and

a polarity estimating unit that calculates a polarity degree corresponding to an attribute expression included in reputation information with a known evaluation polarity, a polarity degree corresponding to a subject included in the reputation information and a polarity degree corresponding to an evaluative expression included in the reputation information, calculates a comprehensive polarity degree obtained by comprehensively integrating a polarity degree corresponding to an attribute expression, a polarity degree corresponding to a subject and a polarity degree corresponding to an evaluative expression calculated with respect to input reputation information on the basis of one of the calculated polarity degrees or a set of two or more of the calculated polarity degrees calculated with respect to the reputation information with the known evaluation polarity, and calculates, as the evaluation polarity, a polarity degree corresponding to a positive degree or a negative degree of the reputation information, and

the reputation information delivery system includes an information delivering unit that transmits not only the reputation information but also the evaluation polarity estimated by the evaluation polarity estimation system to a user terminal through a communication network.

64. A polarity estimation method for estimating an evaluation polarity indicating whether reputation information is positive or negative, comprising:

an evaluative expression storing step of storing an evaluative expression corresponding to an expression of evaluation of a subject and an evaluative expression polarity indicating whether the evaluative expression includes a positive expression or a negative expression correspondingly to each other;

a reputation information storing step of storing reputation information and an evaluation polarity of the reputation information correspondingly to each other; and

a polarity estimating step of estimating an evaluation polarity of reputation information with an unknown evaluation polarity on the basis of the evaluative expression and the evaluative expression polarity stored in the evaluative expression storing step and estimating the evaluation polarity of the reputation information with the unknown evaluation polarity on the basis of the reputation information and the evaluation polarity stored in the reputation information storing step,

wherein acquirement time information indicating time when the reputation information was acquired is stored correspondingly to the reputation information in the reputation information storing step,

prescribed weighting processing is performed on the evaluation polarity corresponding to the stored reputation information on the basis of the stored acquirement time information in the polarity estimating step, and

the evaluation polarity of the reputation information with the unknown evaluation polarity is estimated in the polarity estimating step on the basis of an evaluation polarity resulting from the weighting processing and the stored reputation information.

65. The polarity estimation method according to claim 64,

wherein evaluator information indicating an evaluator having evaluated the reputation information is stored correspondingly to the reputation information in the reputation information storing step, and

the evaluation polarity of the reputation information with the unknown evaluation polarity is estimated in the polarity estimating step on the basis of the stored reputation information and evaluator information.

66. A polarity estimation method in which reputation information including a subject to be evaluated, an attribute expression corresponding to an attribute of the subject and an evaluative expression corresponding to an expression of evaluation of the subject is input for estimating an evaluation polarity indicating whether the input reputation information is positive or negative, comprising:

an evaluative expression storing step of storing an evaluation polarity corresponding to an evaluative expression;

a reputation information storing step of storing reputation information and an evaluation polarity corresponding to the reputation information; and

a polarity estimating step of estimating the evaluation polarity of the input reputation information on the basis of the evaluation polarity stored in the evaluative expression storing step and the reputation information with the known evaluation polarity stored in the reputation information storing step and calculating, as the evaluation polarity, a polarity degree corresponding to a positive degree or a negative degree of the reputation information,

wherein a polarity degree corresponding to an attribute expression included in the reputation information with the known evaluation polarity, a polarity degree corresponding to a subject included in the reputation information and a polarity degree corresponding to an evaluative expression included in the reputation information are calculated in the polarity estimating step, and

a comprehensive polarity degree is calculated in the polarity estimating step by comprehensively integrating a polarity degree corresponding to the attribute expression, a polarity degree corresponding to the subject and a polarity degree corresponding to the evaluative expression calculated with respect to the input reputation information on the basis of one of the calculated polarity degrees or a set of two or more of the calculated polarity degrees calculated with respect to the reputation information with the known evaluation polarity.

67. The polarity estimation method according to claim 66,

wherein the comprehensive polarity degree is obtained in the polarity estimating step by calculating one of or an average, a sum or a ratio of two or more of the polarity degree corresponding to the attribute expression, the polarity degree corresponding to the subject and the polarity degree corresponding to the evaluative expression.

68. The polarity estimation method according to claim 66,

wherein the polarity degree corresponding to the attribute expression is obtained in the polarity estimating step by obtaining a sum of polarity degrees corresponding to reputation information, out of the stored reputation information, including the attribute expression included in the input reputation information, by obtaining an average of the polarity degrees corresponding to the reputation information including the attribute expression included in the input reputation information or by calculating a ratio of the reputation information including the attribute expression included in the input reputation information.

69. The polarity estimation method according to claim 66,

wherein the polarity degree corresponding to the subject is obtained in the polarity estimating step by obtaining a sum of polarity degrees corresponding to reputation information, out of the stored reputation information, including the subject included in the input reputation information, by obtaining an average of the polarity degrees corresponding to the reputation information including the subject included in the input reputation information or by calculating a ratio of the reputation information including the subject included in the input reputation information.

70. The polarity estimation method according to claim 66,

wherein the polarity degree corresponding to the evaluative expression is obtained in the polarity estimating step by obtaining a sum of polarity degrees corresponding to reputation information, out of the stored reputation information, including the evaluative expression included in the input reputation information, by obtaining an average of the polarity degrees corresponding to the reputation information including the evaluative expression included in the input reputation information or by calculating a ratio of the reputation information including the evaluative expression included in the input reputation information.

71. The polarity estimation method according to claim 66,

wherein the polarity degree is calculated in the polarity estimating step with a weight given in the order of time when the reputation information was acquired.

72. The polarity estimation method according to claim 66,

wherein the polarity degree is calculated in the polarity estimating step with respect to an evaluator type corresponding to a type of an evaluator having evaluated the reputation information.

73. The polarity estimation method according to claim 66,

wherein the polarity degree is calculated in the polarity estimating step with respect to each of an age, a sex, an occupation, an interest and a purchased product of an evaluator as an evaluator type for the reputation information.

74. A storage medium for storing a polarity estimation program, used for estimating an evaluation polarity indicating whether reputation information is positive or negative, that causes a computer to execute:

evaluative expression storing processing for storing an evaluative expression corresponding to an expression of evaluation of a subject and an evaluative expression polarity indicating whether the evaluative expression includes a positive expression or a negative expression correspondingly to each other;

reputation information storing processing for storing reputation information and an evaluation polarity of the reputation information correspondingly to each other; and

polarity estimating processing for estimating an evaluation polarity of reputation information with an unknown evaluation polarity on the basis of the stored evaluative expression and evaluative expression polarity and estimating the evaluation polarity of the reputation information with the unknown evaluation polarity on the basis of the stored reputation information and evaluation polarity,

wherein the computer is caused to execute, in the reputation information storing processing, processing for storing, correspondingly to the reputation information, acquirement time information indicating time when the reputation information was acquired,

the computer is caused to execute, in the polarity estimating processing, prescribed weighting processing on the evaluation polarity corresponding to the stored reputation information on the basis of the stored acquirement time information, and

the computer is caused to execute, in the polarity estimating processing, processing for estimating the evaluation polarity of the reputation information with the unknown evaluation polarity on the basis of an evaluation polarity resulting from the weighting processing and the stored reputation information.

75. The storage medium for storing the polarity estimation program according to claim 74,

wherein the computer is caused to execute, in the reputation information storing processing, processing for storing, correspondingly to the reputation information, evaluator information indicating an evaluator having evaluated the reputation information, and

the computer is caused to execute, in the polarity estimating processing, processing for estimating the evaluation polarity of the reputation information with the unknown evaluation polarity on the basis of the stored reputation information and evaluator information.

76. A storage medium for storing a polarity estimation program, in which reputation information including a subject to be evaluated, an attribute expression corresponding to an attribute of the subject and an evaluative expression corresponding to an expression of evaluation of the subject is input for estimating an evaluation polarity indicating whether the input reputation information is positive or negative, that causes a computer to execute:

evaluative expression storing processing for storing an evaluation polarity corresponding to an evaluative expression;

reputation information storing processing for storing reputation information and an evaluation polarity corresponding to the reputation information; and

polarity estimating processing for estimating the evaluation polarity of the input reputation information on the basis of the evaluation polarity stored in the evaluative expression storing processing and the reputation information with the known evaluation polarity stored in the reputation information storing processing and calculating, as the evaluation polarity, a polarity degree corresponding to a positive degree or a negative degree of the reputation information,

wherein the computer is caused to execute, in the polarity estimating processing, processing for calculating a polarity degree corresponding to an attribute expression included in the reputation information with the known evaluation polarity, a polarity degree corresponding to a subject included in the reputation information and a polarity degree corresponding to an evaluative expression included in the reputation information, and

the computer is caused to execute, in the polarity estimating processing, processing for calculating a comprehensive polarity degree obtained by comprehensively integrating a polarity degree corresponding to the attribute expression, a polarity degree corresponding to the subject and a polarity degree corresponding to the evaluative expression calculated with respect to the input reputation information on the basis of one of the calculated polarity degrees or a set of two or more of the calculated polarity degrees calculated with respect to the reputation information with the known evaluation polarity.

77. The storage medium for storing the polarity estimation program according to claim 76,

wherein the computer is caused to execute, in the polarity estimating processing, processing for obtaining the comprehensive polarity degree by calculating one of or an average, a sum or a ratio of two or more of the polarity degree corresponding to the attribute expression, the polarity degree corresponding to the subject and the polarity degree corresponding to the evaluative expression.

78. The storage medium for storing the polarity estimation program according to claim 76,

wherein the computer is caused to execute, in the polarity estimating processing, processing for obtaining the polarity degree corresponding to the attribute expression by obtaining a sum of polarity degrees corresponding to reputation information, out of the reputation information stored in the reputation information storage part, including the attribute expression included in the input reputation information, by obtaining an average of the polarity degrees corresponding to the reputation information including the attribute expression included in the input reputation information or by calculating a ratio of the reputation information including the attribute expression included in the input reputation information.

79. The storage medium for storing the polarity estimation program according to claim 76,

wherein the computer is caused to execute, in the polarity estimating processing, processing of obtaining the polarity degree corresponding to the subject by obtaining a sum of polarity degrees corresponding to reputation information, out of the reputation information stored in the reputation information storage part, including the subject included in the input reputation information, by obtaining an average of the polarity degrees corresponding to the reputation information including the subject included in the input reputation information or by calculating a ratio of the reputation information including the subject included in the input reputation information.

80. The storage medium for storing the polarity estimation program according to claim 76,

wherein the computer is caused to execute, in the polarity estimating processing, processing for obtaining the polarity degree corresponding to the evaluative expression by obtaining a sum of polarity degrees corresponding to reputation information, out of the reputation information stored in the reputation information storage part, including the evaluative expression included in the input reputation information, by obtaining an average of the polarity degrees corresponding to the reputation information including the evaluative expression included in the input reputation information or by calculating a ratio of the reputation information including the evaluative expression included in the input reputation information.

81. The storage medium for storing the polarity estimation program according to claim 76,

wherein the computer is caused to execute, in the polarity estimating processing, processing for calculating the polarity degree with a weight given in the order of time when the reputation information was acquired.

82. The storage medium for storing the polarity estimation program according to claim 76,

wherein the computer is caused to execute, in the polarity estimating processing, processing for calculating the polarity degree with respect to an evaluator type corresponding to a type of an evaluator having evaluated the reputation information.

83. The storage medium for storing the polarity estimation program according to claim 76,

wherein the computer is caused to execute, in the polarity estimating processing, processing for calculating the polarity degree with respect to each of an age, a sex, an occupation, an interest and a purchased product of an evaluator as an evaluator type for the reputation information.

84. A storage medium for storing an evaluation polarity estimation program to be provided onboard in a computer, in which reputation information including a subject to be evaluated, an attribute expression corresponding to an attribute of the subject and an evaluative expression corresponding to an expression of evaluation of the subject is input for outputting an evaluation polarity indicating whether the input reputation information is positive or negative, that causes the computer to execute:

inputting processing for inputting reputation information;

processing for calculating a polarity degree of an attribute expression included in reputation information with a known evaluation polarity;

processing for calculating a polarity degree of a subject included in the reputation information with the known evaluation polarity;

processing for calculating a polarity degree of an evaluative expression included in the reputation information with the known evaluation polarity; and

processing for calculating the polarity of the input reputation information by calculating a comprehensive polarity degree obtained by comprehensively integrating the calculated polarity degrees of the attribute expression, the subject and the evaluative expression.