**About the Editors**

#### **Jan Kozak**

Jan Kozak earned his PhD in Computer Science in 2011 from the University of Silesia in Poland. Since 2013, he has been working in the Department of Machine Learning, University of Economics, in Katowice, Poland, Institute of Computer Science. From 2011 to 2016, Jan Kozak worked as an Assistant Professor at the University of Silesia, Institute of Computer Science. His research areas are related to data mining, decision trees, decision forests, and ant colony optimization. He proposed a new algorithm for constructing decision trees based on ant colony optimization. He also developed a new algorithm for the construction of a decision forest—ACDF. He has published a book and many articles concerning the subjects of ant colony optimization and data mining tasks. He has also been a speaker at many international conferences and has served as a member of several program committees of international conferences.

#### **Przemysław Juszczuk**

Przemysław Juszczuk earned his PhD in 2013 from the University of Silesia in Poland. Since 2020, he has been working in the Department of Decision Support in the Presence of Risk, Systems Research Institute, in Warsaw, Poland. His research interests include machine learning; multicriteria optimization; game theory; data analysis; financial markets; and decision support.
