DenMune: Density peak based clustering using mutual nearest neighbors

Many clustering algorithms fail when clusters are of arbitrary shapes, of varying densities, or the data classes are unbalanced and close to each other, even in two dimensions. A novel clustering algorithm, DenMune is presented to meet this challenge. It is based on identifying dense regions using mutual nearest neighborhoods of size K, where K is the only parameter required from the user, besides obeying the mutual nearest neighbor consistency principle. The algorithm is stable for a wide range of values of K. Moreover, it is able to automatically detect and remove noise from the clustering process as well as detecting the target clusters. It produces robust results on various low and high-dimensional datasets relative to several known state-of-the-art clustering algorithms.

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Datasets


Results from the Paper


 Ranked #1 on Unsupervised MNIST on MNIST (F1 (%) metric)

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Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
Unsupervised MNIST MNIST density based F1 (%) 96.6 # 1

Methods