- Local chair of the organizing committee of ECIR 2014.
- Demo chair of the organizing committee of BNAIC 2016.
- CIKM 2019, the 28th ACM International Conference on Information and Knowledge Management, in Peking.
- ACL 2019, LangChange 2019 workshop, 1st International Workshop on Computational Approaches to Historical Language Change, Florence, Italy.
- SIGIR 2018, the 41st International ACM SIGIR Conference on Research and Development in Information Retrieval, Ann Arbor, United States.
- The Web Conference 2018, Lyon, France.
- CIKM 2017, the 26th ACM Conference on Information and Knowledge Management, Singapore. Outstanding Paper Reviewer Award .
- KDD 2017, a premier interdisciplinary conference bringing together researchers and practitioners from data science, data mining, knowledge discovery, large-scale data analytics, and big data, Halifax, Canada.
- DIR 2015, Dutch-Belgian Information Retrieval Workshop, Amsterdam, Holland.
- HistoInformatics, international workshop on histoinformatics and computational history.
Part of SocInfo 2014 het 6th international conference on social informatics, Barcelona, Spain.
- HistoInformatics, international workshop on histoinformatics and computational history.
Part of SocInfo 2013 het 5th international conference on social informatics, Tokyo, Japan.
- March 2018, ECIR 2018, Grenoble, France.
- February 2018, WSDM 2018, Los Angeles, United States.
- February 2018, AAAI-18, New Orleans, United States.
- August 2017, SIGIR 2017, Tokyo, Japan.
- November 2016, BNAIC 2016, Amsterdam, the Netherlands
- August 2016, ACL 2016, Berlin, Germany
- November 2015, DIR 2015, Amsterdam, the Nederlands
- October 2015, CIKM 2015, Melbourne, Australia
- April 2014, ECIR 2014, Amsterdam, the Netherlands
- January 2014: CLIN24, Leiden, the Netherlands
- November 2013: ICT.OPEN 2013, Eindhoven, the Netherlands.
- November 2013: TREC 2013, Gaithersburg, United States
- July/August 2013: SIGIR 2013, Dublin, Ireland
- April 2013, DIR 2013, Delft, the Netherlands
- March 2013, ECIR 2013, Moscow, Russia