| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve the problem that a conventional document tag assignment method may not be effective for finding of information, and a conventional search method may not be effective for finding of relevant information. <P>SOLUTION: In one embodiment, assigning tags to a document includes accessing the document, where the document comprises text units that include words. The following is performed for each text unit: a subset of words of a text unit is selected as candidate tags, relatedness is established among the candidate tags, and candidate tags are selected according to the established relatedness to yield a candidate tag set for the text unit. Relatedness between the candidate tags of each candidate tag set and the candidate tags of other candidate tag sets is determined. At least one candidate tag is assigned to the document according to the determined relatedness. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
