Patent ID: 9135573
Filing Date: 2015-09-15
Classification: G06F,G06N

Abstract:
1. A computer-implemented method for facilitating use of a reputation system, comprising: obtaining a statistical model associated with a set of users and a set of skills of the users in the reputation system, wherein the statistical model is trained using a positive class and a negative class; applying the statistical model to a set of features for each of the users to estimate a set of reputation scores for the users; populating a matrix of the users and the skills with the reputation scores and unknown values for user-skill pairs that do not have explicit reputation scores; calculating a factorization of the matrix to produce at least two factor matrices, wherein the at least two factor matrices are multiplied to generate one or more inferred values that replace the unknown values in the matrix; and obtaining a ranking of the users by one or more skills specified by a query, wherein the ranking is based on a linear combination of reputation scores associated with the one or more skills; wherein obtaining the ranking of the users includes: