Bostjan Kaluza is the Chief Data Scientist at Evolven. He's also a researcher interested in artificial intelligence and intelligent systems, machine learning, predictive analytics and anomaly detection. Prior to Evolven, Bo tjan served as a senior researcher in the Department of Intelligent Systems at the Jozef Stefan Institute, the leading Slovenian scientific research institution and led research projects involving pattern and anomaly detection, machine learning and predictive analytics. Focusing on the detection of suspicious behavior and data analysis, Bo tjan has published numerous articles in professional journals and delivered conference papers. In 2013, Bo tjan published his first book on data science, Instant Weka How-to, exploring how to leverage machine learning using Weka. Bo tjan recently published his second book, Practical Machine Learning in Java, for learning how to use Java's machine learning libraries to gain insight from data. Bo tjan is also the author and contributor to a number of patents in the areas of anomaly detection and pattern recognition. Bo tjan earned his PhD at Jo ef Stefan International Postgraduate School in Ljubljana, Slovenia, rigorously defending a doctoral dissertation entitled Detection of Anomalous and Suspicious Behavior Patterns.