INFORMATION RELIABILITY DETERMINATION SYSTEM, INFORMATION RELIABILITY DETERMINATION METHOD, AND INFORMATION RELIABILITY DETERMINATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To enhance the determination accuracy of reliability by adding a new feature amount to the conventional feature amount.SOLUTION: An author topic extraction unit 201 extracts an author topic if the author topic of a contribution document 203 exists in an author topic DB 108. A document topic extraction unit 102 acquires a word topic of a word included in an input document from a word topic DB 109, and extracts a document topic showing characteristics of the input document. A similarity calculation unit 103 calculates similarity between the author topic and the document topic. A feature amount imparting unit 104 imparts the author topic, the document topic and the similarity between both topics to a feature amount extracted by a feature amount extraction part 106 as a new feature amount. A reliability determination unit 202 uses a reliability determination device DB 111 and a feature amount imparted by the feature amount imparting unit 104 to determine the reliability of the contribution document, and stores a determination result in a reliability DB 206.SELECTED DRAWING: Figure 2