Cluster-based scalable collaborative filtering

US8738467B2 · kind B2 · utility

Assignee

• Microsoft Corporation · US

Inventors

• Chenxi Lin · Beijing, CN
• Gui-Rong Xue · Shanghai, CN
• Hua-Jun Zeng · Beijing, CN
• Zheng Chen · Beijing, CN
• Benyu Zhang · Beijing, CN
• Jian Wang · Beijing, CN

Key dates

• Filing date: Mar 16, 2006
• Grant date: May 27, 2014
• Expiry date: Apr 29, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q30/0601
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

Methods for determining a predictive rating are disclosed. In an embodiment, an active user is compared to a set of clusters. One or more of the clusters are determined to be most similar to the active user. From the one or more clusters, K users are determined to be most similar to the active user. Prior ratings for an item by the K users may be used to predict a rating for the item for the active user.