Skip to Main content Skip to Navigation
Journal articles

Classifier fusion in the Dempster-Shafer framework using optimized t-norm based combination rules

Abstract : When combining classifiers in the Dempster-Shafer framework, Dempster's rule is generally used. However, this rule assumes the classifiers to be independent. This paper investigates the use of other operators for combining non independent classifiers, including the cautious rule and, more generally, t-norm based rules with behavior ranging between Dempster's rule and the cautious rule. Two strategies are investigated for learning an optimal combination scheme, based on a parameterized family of t- norms. The first one learns a single rule by minimizing an error criterion. The second strategy is a two-step procedure, in which groups of classifiers with similar outputs are first identified using a clustering algorithm. Then, within- and between-cluster rules are determined by minimizing an error criterion. Experiments with various synthetic and real data sets demonstrate the effectiveness of both the single rule and two-step strategies. Overall, optimizing a single t-norm based rule yields better results than using a fixed rule, including Dempster's rule, and the two-step strategy brings further improvements.
Document type :
Journal articles
Complete list of metadata

Cited literature [64 references]  Display  Hide  Download
Contributor : Marie-Hélène Masson Connect in order to contact the contributor
Submitted on : Tuesday, December 13, 2011 - 2:36:15 PM
Last modification on : Monday, September 5, 2022 - 4:22:29 PM
Long-term archiving on: : Friday, November 16, 2012 - 3:25:32 PM


Files produced by the author(s)


  • HAL Id : hal-00651369, version 1



Benjamin Quost, Marie-Hélène Masson, Thierry Denoeux. Classifier fusion in the Dempster-Shafer framework using optimized t-norm based combination rules. International Journal of Approximate Reasoning, Elsevier, 2011, 52 (3), pp.353-374. ⟨hal-00651369⟩



Record views


Files downloads