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Browsing University of Hertfordshire by Author "Makarenkov, Vladimir"
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A-Wardpβ : Effective hierarchical clustering using the Minkowski metric and a fast k-means initialisation
Cordeiro De Amorim, Renato; Makarenkov, Vladimir; Mirkin, Boris (2016-11-20)In this paper we make two novel contributions to hierarchical clustering. First, we introduce an anomalous pattern initialisation method for hierarchical clustering algorithms, called A-Ward, capable of substantially ... -
Applying subclustering and Lp distance in Weighted K-Means with distributed centroids
Cordeiro De Amorim, Renato; Makarenkov, Vladimir (2016-01-15)We consider the Weighted K-Means algorithm with distributed centroids aimed at clustering data sets with numerical, categorical and mixed types of data. Our approach allows given features (i.e., variables) to have different ... -
The Minkowski central partition as a pointer to a suitable distance exponent and consensus partitioning
Cordeiro De Amorim, Renato; Shestkov, Andrei; Mirkin, Boris; Makarenkov, Vladimir (2017-07-31)The Minkowski weighted K-means (MWK-means) is a recently developed clustering algorithm capable of computing feature weights. The cluster-specific weights in MWK-means follow the intuitive idea that a feature with low ...