Patent · US Active

Rating and novelty decay

US9098860B2 · kind B2 · utility

2Cited by

7References

10Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Jonas Björk · Lund, SE
Mattias Lidström · Stockholm, SE
Simon Moritz · Solna, SE

Key dates

Filing date	Jul 9, 2009
Grant date	Aug 4, 2015
Priority date	—
Expiry date	Jun 16, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06Q30/0278
WIPO fieldIT methods for management
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.