Member of the Advisory Board of the international journal “Digital Libraries”
Member of the Executive Committee of the “European Research Consortium for Informatics and Mathematics (ERCIM)
Scientific Coordinator of the EU DELOS Network of Excellence on Digital Libraries
Chairman as well as member of the Program Committee of many international conferences (VLDB, EDBT, CAiSE, ECDL, Data Engineering, ACM Multimedia)
Author of the Roadmap Report: “Global Research Data Infrastructures: The Big Data Challenges” (January 2012)
Advisor of the Japan Science and Technology Agency in the Research Area “Advanced Application Technologies to Boost Big Data Utilization for Multiple-Field Scientific Discovery and Social Problem Solving” (2013-2017).