no code implementations • 1 Feb 2024 • Georgios Vardakas, Ioannis Papakostas, Aristidis Likas
Soft silhouette rewards compact and distinctly separated clustering solutions like the conventional silhouette coefficient.
no code implementations • 11 Jan 2024 • Georgios Vardakas, John Pavlopoulos, Aristidis Likas
Silhouette coefficient is an established internal clustering evaluation measure that produces a score per data point, assessing the quality of its clustering assignment.
1 code implementation • 18 Dec 2023 • Georgios Vardakas, Argyris Kalogeratos, Aristidis Likas
In this work, we focus on the concept of unimodality and propose a flexible cluster definition called locally unimodal cluster.
1 code implementation • 22 Nov 2022 • Georgios Vardakas, Aristidis Likas
The global $k$-means is a deterministic algorithm proposed to tackle the random initialization problem of k-means but its well-known that requires high computational cost.