| 摘要 |
<p>PROBLEM TO BE SOLVED: To extract feature quantities which correspond to features of items in texts.SOLUTION: An assignment unit assigns a value of topic variable indicating a topic to every token of a word included in text data. For all of the topic variables of which values are assigned by the assignment unit, a calculation unit calculates a probability that all of the tokens included in the text data appear at the same time by every switch variable used as a switch for changing appearance probability distribution of tokens. A determination unit determines the topic indicated by each topic variable according to the probability calculated by the calculation unit.</p> |
