The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 04, 2015

Filed:

Jul. 09, 2009
Applicants:

Jonas Björk, Stockholm, SE;

Mattias Lidström, Stockholm, SE;

Simon Moritz, Solna, SE;

Inventors:

Jonas Björk, Stockholm, SE;

Mattias Lidström, Stockholm, SE;

Simon Moritz, Solna, SE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01); G06Q 30/02 (2012.01);
U.S. Cl.
CPC ...
G06Q 30/02 (2013.01); G06Q 30/0241 (2013.01); G06Q 30/0278 (2013.01);
Abstract

Application servers and methods of operating the same are provided for generating a personalized recommendation of items to a first user. An updated rating value N(t) of an initial rating value N(0) is determined for each rated item based on an age of each rating. The updated rating value N(t) is based on a difference between the value of the initial rating N(0) and a neutral rating value R, and on a predetermined half-life of the ratings. The updated rating value N(t) converges towards the neutral rating value R with an increase in the age t for each rating.


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