Method and apparatus for item recommendation using automated col

Details Method and apparatus for item recommendation using automated col Method and apparatus for item recommendation using automated col

1997-01-28

2000-03-21

MacDonald, Allen R.

Data processing: financial, business practice, management, or co

Automated electrical financial or business practice or...

Electronic shopping

705 7, 705 8, 705 9, 707102, G06F 1730

Patent

active

060413115

ABSTRACT:
A method for recommending items to users using automated collaborative filtering stores profiles of users relating ratings to items in memory. Profiles of items may also be stored in memory, the item profiles associating users with the rating given to the item by that user or inferred for the user by the system The user profiles include additional information relating to the user or associated with the rating given to an item by the user. Similarity factors with respect to other users, and confidence factors associated with the similarity factors, are calculated for a user and these similarity factors, in connection with the confidence factors, are used to select a set of neighboring users. The neighboring users are weighted based on their respective similarity factors, and a rating for an item contained in the domain is predicted. In one embodiment, items in the domain have features. In this embodiment, the values for features can be clustered, and the similarity factors incorporate assigned feature weights and feature value cluster weights.

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