Patent ID: 11954137
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A data generation device comprising:
processing circuitry configured to:
classify each of a plurality of users having attributes similar to one another into one of a plurality of clusters based on user information representing the respective attributes of the users;
perform a first search processing using a first search query that includes one or more keywords extracted from the user information to obtain one or more first search results;
estimate whether the users select each of the first search results based on a similarity between each of the first search results and information representing attributes of the clusters, and generating estimation information representing whether the users select each of the first search results;
generate learning data of a ranking model that determines an order of a plurality of second search results, the learning data including the first search results and the estimation information;
train the ranking model using the learning data;
perform a third search processing using a third search query that includes one or more received keywords to obtain a plurality of third search results;
determine the order of the third search results using the ranking model that is trained using the learning data; and
output the third search results in the order that is determined using the ranking model.