The Research of Broadcast Television Users Portraits Depicting Technology Based on Long-term Interest Model

摘要

Aiming to meet the demand of intellectual delivery business, this paper puts forward broadcast television users portraits depicting technology based on the long-term interest model. The model analyse users interest drift process according to Ebbinghaus attenuation characteristics of human memory forgetting and human dynamics theory of diminishing marginal utility, determine users' favorite program features by spectral clustering algorithm based on interest label network. What' more, it can predict, users' interest preference during the month and provide the basis for individualized information service.