| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device and method for achieving the construction or extension processing of a highly accurate relevancy database. <P>SOLUTION: The information processor is configured to extract a phrase including an entity pair to which a relevancy label is to be applied from document data, and to apply the relevancy label showing the relevancy of the entity pair included in the extracted phrase. A label application unit acquires the number of appearance of a vocabulary syntax pattern included in the phase including the entity pair by analyzing registration information of an existing relevancy database to generate an overlapping ratio matrix M of the entity pair in each vocabulary syntax pattern, sets a probability model including the matrix M, a parameter Z showing label validity, and a parameter (a) showing probability of the label to be correctly applied, calculates the parameters Z and (a) maximizing likelihood, and executes label application based on the value of the parameter Z. <P>COPYRIGHT: (C)2013,JPO&INPIT |
