This book includes revised selected papers from the International Workshops on AI Approaches to the Complexity of Legal Systems, AICOL 2018–2020 and XAILA 2020. The 17 full and 4 short papers included in this volume were carefully reviewed and selected form 39 submissions. They represent a comprehensive picture of the state of the art in legal informatics. The papers are logcally organized in 5 blocks: Knowledge Representation; Logic, rules, and reasoning; Explainable AI in Law and Ethics; Law as Web of linked Data and the Rule of Law; Data protection and Privacy Modelling and Reasoning. weiterlesen