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2010
IEEE

Comparing Approaches to Preference Dominance for Conversational Recommenders

9 years 1 months ago
Comparing Approaches to Preference Dominance for Conversational Recommenders
A conversational recommender system iteratively shows a small set of options for its user to choose between. In order to select these options, the system may analyze the queries tried by the user to derive whether one option is dominated by others with respect to the user's preferences. This paper describes a framework for preference dominance. Two instances of the framework are developed for query suggestion in a conversational recommender system. The first instance of the framework is based on a basic quantitative preferences formalism, where products are compared using sums of weights of features. The second is a qualitative preference formalism, using a language that generalizes CP-nets, where models are a kind of generalized lexicographic order. A key feature of both methods is that deductions of preference dominance can be made efficiently, since this procedure needs to be applied for many pairs of products. We show that, by allowing the recommender to focus on undominated o...
Walid Trabelsi, Nic Wilson, Derek G. Bridge, Franc
Added 13 Feb 2011
Updated 13 Feb 2011
Type Journal
Year 2010
Where ICTAI
Authors Walid Trabelsi, Nic Wilson, Derek G. Bridge, Francesco Ricci
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