Providing information recommendations based on determined user groups

摘要

Classifying a user into a user group is described, including: obtaining action record information associated with a user with respect to a plurality of information categories; determining a preference value for at least one of the plurality of information categories based at least in part on the action record information; determining a demand preference dispersion value for the user based at least in part on the preference value, wherein the demand preference dispersion value represents a degree to which the user has dispersed interest across the plurality of information categories; and determining whether the user is to be associated with a demand-focused user group based at least in part on the demand preference dispersion value.

主权项

1. A system for classifying a user into a user group, comprising:
one or more processors configured to:
obtain action record information associated with a user with respect to a plurality of information categories, the plurality of information categories including a first information category and a second information category;determine a plurality of preference values indicating the user's preferences for the plurality of information categories, the determination being made based at least in part on the action record information, the plurality of preference values including a first preference value and a second preference value, the first preference value relating to the first information category, the second preference value relating to the second information category;determine a demand preference dispersion value for the user based at least in part on the plurality of preference values, wherein the demand preference dispersion value represents a degree to which the user has dispersed interest across the plurality of information categories, and wherein to determine the demand preference dispersion value comprises to:
compare the first and second preference values each with a preference value threshold; andin the event that the first and second preference values both are greater than or equal to the preference value threshold:
determine a first entropy value based at least in part on a formula and the first preference value;determine a second entropy value based at least in part on the formula and the second preference value; anddetermine the demand dispersion preference value based on the first entropy value and the second entropy value;determine whether the user is to be classified with a demand-focused user group based at least in part on the demand preference dispersion value; andone or more memories coupled to the one or more processors and configured to provide the one or more processors with instructions.