Initial perspectives from preferences expressed through comparisons

Abstract

Rating-scales have become a popular modality for expressing our preferences, but they present several drawbacks. We have recently proposed a new modality: comparing items ("I prefer A to B"). After initial user-studies with encouraging results, we here share some initial perspectives. In particular we examine three issues illustrated with graphs of user's preferences. We discuss the adaptability of comparisons, their algorithmic complexity and incoherences introduced by transitivity. © 2011 Springer-Verlag.