Multi-topic classification apparatus, multi-topic classification method, and multi-topic classification program

摘要

PPROBLEM TO BE SOLVED: To implement fast and accurate multi-topic classification. PSOLUTION: In learning in a multi-topic classification apparatus 200, an acquisition part 211 acquires classified data 201 and a corresponding training data set Y. A generation part 212 generates a feature vector x of the classified data 201. A calculation part 213 calculates a topic co-occurrence matrix K. A setting part 214 executes a weight vector setting process. In classification, the acquisition part 211 acquires unclassified data 202. The generation part 212 generates a feature vector x of the unclassified data 202. A classification part 221 executes a single topic classification execution process and a multi-topic classification execution process. An output part 222 outputs the classification results. PCOPYRIGHT: (C)2009,JPO&INPIT