Singular sources mining using evidential conflict analysis

John Klein (1) , Olivier Colot (1)

1 LAGIS-SI

Singular sources mining is essential in many applications like sensor fusion or dataset analysis. A singular source of information provides pieces of evidence that are significantly different from the majority of the other sources. In the Dempster-Shafer theory, the pieces of evidence collected by a source are summarized by basic belief assignments (bbas). In this article, we propose to mine singular sources by analysing the conflict between their corresponding bbas. By viewing the conflict as a function of parameters called discounting rates, new developments are obtained and a criterion that weights the contribution of each bba to the conflict is introduced. The efficiency and the robustness of this criterion is demonstrated on several sets of bbas with various specificities.

Mots clés: Outlier detection

Domaines: Analyse de données, Statistiques et Probabilités [physics.data-an]

John Klein, Olivier Colot. Singular sources mining using evidential conflict analysis. International Journal of Approximate Reasoning, 2011, 52 (9), pp.1433 - 1451. ⟨10.1016/j.ijar.2011.08.005⟩. ⟨hal-00668096⟩