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Title: US5884282: Automated collaborative filtering system
[ Derwent Title ]

Country: US United States of America

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31 pages

 
Inventor: Robinson, Gary B.; Ellsworth, ME 04605

Assignee: None

Published / Filed: 1999-03-16 / 1998-04-09

Application Number: US1998000058445
IPC Code: Advanced: G06F 17/30;
Core: more...
IPC-7: G01D 1/16;

ECLA Code: G06F17/30T3;

U.S. Class: Current: 705/027; 705/012; 705/026; 707/010; 707/102; 707/E17.059; 709/202;
Original: 705/027; 705/012; 705/026; 707/010; 707/102; 395/200.32;

Field of Search: 705/012,26,27 707/010,102,104 395/200.32

Priority Number:
1998-04-09  US1998000058445
1997-04-30  US1997000848317
1997-04-15  US1997000838233
1996-04-30  US1996000016577P

Abstract:     An automated collaborative filtering (ACF) system for recommending at least one item to a first user based on similarity in preference of the user as compared with other users. The ACF system stores rating data for items provided by users of the system. Upon request of the first user, the system determines similarity values for the first user as compared with other users that have provided rating data for items that the first user has also rated. Based on the similarity values, a subgroup of users is selected that is then used to provide recommendations to the first user.

Attorney, Agent or Firm: Nutter, McClennen & Fish, LLP ;

Primary / Asst. Examiners: Peeso, Thomas;

INPADOC Legal Status: Show legal status actions          Buy Now: Family Legal Status Report

       
Related Applications:
Application Number Filed Patent Pub. Date  Title
US1997000848317 1997-04-30    1998-08-04  Automated collaborative filtering system
US1997000838233 1997-04-15       


       
Parent Case:

CROSS REFERENCE TO RELATED APPLICATION
    This application is a continuation of U.S. patent application Ser. No. 08/848,317 which claims priority from U.S. Provisional application Ser. No. 60/016,577 filed on Apr. 30, 1996, and is a continuation-in-part of U.S. patent application Ser. No. 08/838,233 filed on Apr. 15, 1997.

Family: Show 2 known family members
First Claim:
Show all 56 claims		 What is claimed is:     1. A method for selecting an item from a plurality of items to recommend to a first user of a plurality of users, the method comprising:
  • obtaining ratings data for at least some of the items in the plurality of items from first ones of the plurality of users, wherein the ratings data for each of the respective items includes information about the overall ratings distribution for the item;
  • locating a first common item that the first user and a second user in the plurality of users have provided ratings data for;
  • transforming the ratings data for the first common item from the ratings data for the first common item provided by the first ones of the plurality of users to provide first transformed ratings data;
  • computing a range of randomized transformed ratings data for the first common item from the ratings data for the first common item provided by the first ones of the plurality of users;
  • determining a test statistic for the first common item from the first transformed ratings data and the range of randomized transformed ratings data; and
  • determining a similarity value from the test statistic for the first user with respect to the second user.
    •


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Forward References: Show 117 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (117)   |   Backward references (3)   |   Citation Link

Buy
PDF		 Patent  Pub.Date  Inventor Assignee   Title
Buy PDF- 11pp US4870579  1989-09 Hey  Neonics, Inc. System and method of predicting subjective reactions
Buy PDF- 12pp US4996642  1991-02 Hey  Neonics, Inc. System and method for recommending items
Buy PDF- 41pp US5452410  1995-09 Magidson  SI Software Limited Partnership Apparatus and method for graphical display of statistical effects in categorical and continuous outcome data
       
Foreign References: None

Other Abstract Info: DERABS G1998-446517 DERABS G1999-214394 DERABS G1999-214394

Other References:
  • Upendra Shardanand, "Social Information Filtering for Music Recommendation" Sep. 1994, pp. 1-93, Massachusetts Institute of Technology, Thesis.
  • Good, I. J., "On The Weighted Combination of Significance Tests," Journal of the Royal Statistical Society, Series B, 17 (1995), pp. 264-265.
  • Hedges, L. & Olkin, I. (1985). Statistical Methods for Meta-Analysis. San Diego, CA: Academic Press, Inc., pp. 370-381.
  • Lancaster, H.O., "The Combination of Probabilities Arising From Data in Discrete Distributions," Biometrika, 36 (1949), pp. 370-382.
  • Pp. 1-2 of an article relating to z-scores. (origin unknown).
  • "WWW.firefly.com", web site pages, 12 pages, printed out on Jan. 21, 1998 (origination date unknown).
  • "WWW.amazon.com", web site pages, 15 pages, printed out on Jan. 21, 1998 (origination date unknown).


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