Considering Data-Mining Techniques in User Preference Learning

In this paper we deal with the problem of learning user preferences from userpsilas scoring of a small sample of objects with labels from a very small linearly ordered set. The main task of this process is to use these preferences for a top-k query, which delivers the user with an ordered list of k highest ranked objects. We deal with a problem of many ties in the highest score. Two algorithms for learning objective and utility functions are presented. We experiment and compare them to some classical data-mining methods. We use several measures (RMSE and rank correlations ...) to evaluate efficiency of these methods.