Extending Conditional Preference Network with User's Genuine Decisions
Sultan Ahmed, Malek Mouhoub · 2018
User's choices involve habitual behavior and genuine decisions. Habitual behavior is often represented using preferences. The Conditional Preference Network (CP-net) graphically represents user's conditional ceteris paribus preference statements. We argue that genuine decisions are environmentally influenced and introduce the notion of "comfort" to represent this type of choices. In this paper, we propose an extension of the CP-net model, that we call the CP-net with Comfort (CPC-net), to represent user's comfort with preferences. A CPC-net has two optimal outcomes, one for preferences and another for comfort. We show that these two outcomes can be obtained in linear time on the number of variables for an acyclic CPC-net. We also evaluate outcome comparison queries with respect to CPC-nets.