This book contains the proceedings from the 23rd Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD 2019), held in Macau, China, from April 14-17, 2019. It presents a collection of research papers detailing the latest advancements in knowledge discovery and data mining. This volume, Part II, covers a wide range of topics and techniques relevant to researchers and practitioners in the field. Key Features: * Covers cutting-edge research in knowledge discovery and data mining. * Features papers presented at the prestigious PAKDD 2019 conference. * Includes contributions from leading experts in the field. * Part II of the comprehensive proceedings. This publication is an essential resource for anyone looking to stay updated on the latest trends and developments in data mining and knowledge discovery. Summary: Springer Nature Switzerland AG paperback book, PAKDD 2019 Proceedings Part II, 23rd Pacific-Asia Conference, Knowledge Discovery and Data Mining, Qiang Yang.