3 papers
math.OC2026
Inexact Limited Memory Bundle Method
Jenni Lampainen, Kaisa Joki, Napsu Karmitsa +1
Large-scale nonsmooth optimization problems arise in many real-world applications, but obtaining exact function and subgradient values for these problems may be computationally exp…
cs.LG2026
Clust-Splitter - an Efficient Nonsmooth Optimization-Based Algorithm for Clustering Large Datasets
Jenni Lampainen, Kaisa Joki, Napsu Karmitsa +1
Clustering is a fundamental task in data mining and machine learning, particularly for analyzing large-scale data. In this paper, we introduce Clust-Splitter, an efficient algorith…
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…