Case-Based Approximate Reasoning (Theory and Decision Library B)
Case-Based Approximate Reasoning (Theory and Decision Library B)
Decision making under uncertainty using imprecise probabilities
International Journal of Approximate Reasoning
A survey of the theory of coherent lower previsions
International Journal of Approximate Reasoning
An evidence-theoretic k-NN rule with parameter optimization
IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews
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K-nearest neighbours algorithms are among the most popular existing classification methods, due to their simplicity and good performances. Over the years, several extensions of the initial method have been proposed. In this paper, we propose a K-nearest neighbours approach that uses the theory of imprecise probabilities, and more specifically lower previsions. This approach handles very generic models when representing imperfect information on the labels of training data, and decision rules developed within this theory allows to deal with issues related to the presence of conflicting information or to the absence of close neighbours. We also show that results of the classical voting K-NN procedures and distance-weighted k-NN procedures can be retrieved.