Preference fusion and Condorcet's Paradox under uncertainty - Archive ouverte HAL
Communication Dans Un Congrès Année : 2017

Preference fusion and Condorcet's Paradox under uncertainty

Résumé

Facing an unknown situation, a person may not be able to firmly elicit his/her preferences over different alternatives, so he/she tends to express uncertain preferences. Given a community of different persons expressing their preferences over certain alternatives under uncertainty, to get a collective representative opinion of the whole community, a preference fusion process is required. The aim of this work is to propose a preference fusion method that copes with uncertainty and escape from the Condorcet paradox. To model preferences under uncertainty, we propose to develop a model of preferences based on belief function theory that accurately describes and captures the uncertainty associated with individual or collective preferences. This work improves and extends the previous results. This work improves and extends the contribution presented in a previous work. The benefits of our contribution are twofold. On the one hand, we propose a qualitative and expressive preference modeling strategy based on belief-function theory which scales better with the number of sources. On the other hand, we propose an incremental distance-based algorithm (using Jousselme distance) for the construction of the collective preference order to avoid the Condorcet Paradox.
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Dates et versions

hal-01573217 , version 1 (09-08-2017)

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Domaine public

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Yiru Zhang, Tassadit Bouadi, Arnaud Martin. Preference fusion and Condorcet's Paradox under uncertainty. International Conference on Information Fusion, Jul 2017, Xi'an, China. ⟨hal-01573217⟩
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