G06N99005
Please help me predict the CPC LABEL for this patentPATENT ABSTRACT: In implementations of the subject matter described herein, a machine learning scheme is proposed. Features of historical inputs from a user as well as corresponding outputs presented to the user in response to the historical inputs are obtained, where the features are previously determined based on contexts of the historical inputs which indicate information related to the user. The features of the historical inputs are assigned into a plurality of groups. An association is determined on the basis of the plurality of groups of features. Specifically, an association indicating inter-group correlations of features from different ones of the groups is determined according to the obtained outputs. Therefore, in determining the association, intra-group correlations such as correlations of features within a group are excluded. In this way, the time and computation complexity for the association determination will be effectively reduced.