|発明の名称||COMMON PATTERN DETECTING DEVICE AND PROGRAM, STORAGE MEDIUM, AND COMMON PATTERN DETECTING METHOD|
PROBLEM TO BE SOLVED: To easily detect common patterns among a plurality of information.
SOLUTION: This device comprises a part character string taking-out means 11 for extracting a part character string from the respective text information, a frequency-counting means 12 for counting the occurrence frequency of the extracted part character string and for summing up the occurrence frequency for each identical part character string to provide the frequency, a part character string kind number counting means 13 for counting the number of different part character strings taken out by the part character string taking-out means 11 for every same frequency, a total number calculating means 14 for calculating the product of the frequency by the number of different part character strings, a peak detecting means 15 for detecting the frequency of peak positions, occurring as a pinpoint from the relation between the product calculated by the total number calculating means 14 and the frequency, and an information extracting means 16 for extracting the text information, including the part character string of which frequency is counted at the peak position, when the peak exists.
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