Action Editor, Transactions of the ACL
Associate Editor, Royal Society Open Science
Co-Chair of the Best Paper Awards Committee, EACL 2026.
Area Chair, EMNLP 2025
Senior Area Chair in Sentiment Analysis, Stylistic Analysis, and Argument Mining, ACL 2025
Best Paper Awards committee member, EMNLP 2024
ACL Test-of-Time Papers Awards committee member, ACL 2024
Senior Area Chair in Information Extraction, ACL 2024
Program Co-Chair, CCL 2024
Program Co-Chair (Short Papers), ECIR 2024
Senior Area Chair in Multidisciplinary and NLP Applications, EACL 2023
General Chair, AACL-IJCNLP 2022
Senior Area Chair in Sentiment Analysis, ACL 2022
Area Chair in NLP Applications, EMNLP 2021
Area Chair in Sentiment Analysis, Stylistic Analysis, and Argument Mining, ACL 2021
Area Chair in Sentiment Analysis and Argument Mining, NAACL 2021
Program Co-Chair, EMNLP 2020
Area Chair in Sentiment Analysis, Stylistic Analysis, and Argument Mining, ACL 2020
Senior Area Chair in Sentiment Analysis and Argument Mining, EMNLP 2019
Area Chair in Sentiment Analysis and Argument Mining, ACL 2019
Area Chair in Sentiment Analysis and Argument Mining, ACL 2018
Senior Area Chair in Social Media, Computational Social Science, and Sentiment/Opinion Analysis, EMNLP 2018
Senior Program Committee Member, IJCAI 2018
Senior Program Committee Member, AAAI 2016, 2017, 2018
Area Chair on Sentiment Analysis, NAACL-HLT 2016
Co-organiser of the Pilot Challenge Task on ``Emotion Cause Analysis (ECA)", NCTIR-13, NII, Tokyo, Japan, Dec 5-8 2016.
Area Chair in Sentiment Analysis and Opinion Mining, EMNLP 2015
Area Chair in Sentiment Analysis and Opinion Mining, CCL 2015
Area Chair in Knowledge Graph, NLPCC 2015
Organisation Chair, IJCAI Workshop on Understanding the Positive and Negative Sides of Social Media, 2013
Special Area Chair in Special Mining}, International Conference on Advances in Information Mining and Management, 2011
Publication Chair, ECIR 2010
Local Organising Chair, IAPR Workshop on Pattern Recognition in Bioinformatics 2007