Preface

[Excerpt] The present book includes extended and revised versions of a set of selected papers from the 4th International Conference on Data Technologies and Applications — DATA 2015), which is sponsored by the Institute for Systems and Technologies of Information, Control and Communication (INSTICC), and co-organized by the University of Haute Alsace and held in cooperation with the ACM SIGMIS — ACM Special Interest Group on Management Information Systems. The aim of this conference series is to bring together researchers and practitioners interested in databases, data warehousing, data mining, data management, data security, and other aspects of knowledge and information systems and technologies involving advanced applications of data. [...](undefined