| 摘要 |
<P>PROBLEM TO BE SOLVED: To estimate a model by which a user selects an article to purchase, on the basis of purchase behavior of the user when a consideration set is provided. <P>SOLUTION: A reading part 10 reads an input purchase data set and consideration set data for each user. An estimation part 30 estimates, on the basis of the purchase data set and the consideration set data, a model parameter of a model when assuming that an article not included in the consideration set is not purchased, the model parameter by which each user selects an article to purchase from the consideration set. An output part 40 outputs the estimated model parameter. <P>COPYRIGHT: (C)2013,JPO&INPIT |
