Analysis of changes in concentration slovak banking sector based on goal programming

One of the most widely used indices for measuring the concentration of industry is the Herfindahl-Hirschman Index (HHI). The analysis of its changes enables examines changes in the concentration of the market in case of new business entity entry. The analysis is based on the assumption that after entering the relevant market a new business entity receives a proportion of its total volume, with the advent of a new business entity to market its total volume expands in a proportional reduction in the volume of the market for operating entities. Analysis was applied to the task of goal programming which is based on the methodology of the European Union, that allows characterize the changes in the concentration of the relevant market. In this paper data about Slovak Republic banking sector were used to calculate limits for number of clients for Slovak banking market entering bank. Limits represent boundaries of clients between banks in case of banking sector concentration change in Slovak Republic

Self-organizing migrating algorithm with clustering-aided migration

This paper proposes a novel migration strategy for Self-organizing Migrating Algorithm (SOMA), which combines advantages of the explorative All-To-Random migration with new exploitation focused All-To-Cluster-Leaders strategy. The main goal of this novel innovation to SOMA is to deliver competitive results, not only on the latest CEC 2020 benchmark set on a single objective bound-constrained numerical optimization. The proposed algorithm variant was titled SOMA-CL, and it has manifested notable potential in such demanding challenges. The results of the proposed algorithm were compared and tested for statistical significance against two other SOMA variants. © 2020 ACM