Personalized recommendation of a volatile item

摘要

A system, method, and machine readable medium for creating a personalized recommendation of an item by creating a topic vector based on a plurality of search queries, at least one of a plurality of users associated with the search queries or a plurality of items associated with the search queries; inferring a topical preference for a user based on a search query by the user; and recommending at least one item based on the topical preference and the topic vector.

主权项

1. A method of creating a personalized recommendation of an item, the method comprising:
using one or more processors:
creating a first plurality of probability distributions based upon a dataset that includes a plurality of users and a list of search queries that each user in the plurality of users submitted over a predetermined period of time, each of the first plurality of probability distributions corresponding to a respective one of a plurality of latent topics and describing, for each respective search query in the list of search queries, a probability that the respective latent topic is related to the respective search query;creating a user-based probability distribution for a user based upon the first plurality of probability distributions and a second list of search queries previously entered by the user, the user-based probability distribution corresponding to the user and describing a probability that the user is interested in each of the plurality of latent topics;determining a high-ranking latent topic from the user-based probability distribution;determining a high-ranking search query from one of the first plurality of probability distributions corresponding to the determined high-ranking latent topic;submitting the high-ranking search query to a search engine of an electronic marketplace; andrecommending to the user, at least one search result received from the search engine of the electronic marketplace in response to the submitted high-ranking search query, the at least one search result describing a volatile item that is part of an item inventory on a temporary basis.