3 papers
cs.LG2026
Absolute indices for determining compactness, separability and number of clusters
Adil M. Bagirov, Ramiz M. Aliguliyev, Nargiz Sultanova +1
Finding "true" clusters in a data set is a challenging problem. Clustering solutions obtained using different models and algorithms do not necessarily provide compact and well-sepa…
math.OC2025
Hybrid subgradient and simulated annealing method for hemivariational inequalities
Piotr Bartman-Szwarc, Adil M. Bagirov, Anna Ochal
In this paper, we employ a global aggregate subgradient method for the numerical solution of hemivariational inequality problems arising in contact mechanics. The method integrates…
math.OC2025
A truncated epsilon-subdifferential method for global DC optimization
Adil M. Bagirov, Kaisa Joki, Marko M. Makela +1
We consider the difference of convex (DC) optimization problem subject to box constraints. Utilizing epsilon-subdifferentials of DC components of the objective, we develop a new me…