The Intelligent Systems Laboratory was founded in 1993, back then as Logic Programming and Intelligent Systems (LPIS) group, and is part of the Knowledge, Data and Web Engineering Department of the School of Informatics at the Aristotle University of Thessaloniki. The lab's research interests span a wide area of Artificial Intelligence, including Knowledge Representation and Reasoning, Planning, Machine Learning, Data Mining, Logic Programming and the Semantic Web. The lab is an active node of the Hellenic Society for Artificial Intelligence, and has organized the 2nd Hellenic Conference on Artificial Intelligence in Thessaloniki in 2002, the 2nd International Summer School on AI Planning in Halkidiki in 2002, and the 9th Hellenic Conference on Artificial Intelligence in Thessaloniki in 2016.