Conference Organizer

• Demonstration Co-Chair (with Grace Hui Yang)
  ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), 2018
• Large Language Model Day Co-Chair (with Julia Kiseleva and Paul Bennett)
  ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), 2024

Conference Senior Program Committee Member

• AAAI Conference on Artificial Intelligence (AAAI), 2021
• International World Wide Web Conference (WWW), 2023

Conference Program Committee Member/Paper Reviewer

• ACM International Conference on Web Search and Data Mining (WSDM), 2016 (Outstanding Reviewer Award), 2017, 2018, 2019 (Outstanding PC Member), 2020 (Outstanding PC Member), 2021, 2022 (Outstanding PC Member)
• International World Wide Web Conference (WWW), 2018, 2019, 2020, 2021, 2023, 2024, 2025
• ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), 2014, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
• ACM SIGIR International Conference on the Theory of Information Retrieval (ICTIR), 2017, 2018
• ACM International Conference on Information and Knowledge Management (CIKM), 2013, 2015, 2017
• American Medical Informatics Association Annual Symposium (AMIA), 2016, 2018, 2020
• Asia Information Retrieval Societies Conference (AIRS), 2016, 2017, 2018
• ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), 2013, 2014
• International Joint Conference on Natural Language Processing (IJCNLP), 2013

Journal Article Reviewer

• Journal of Machine Learning Research (JMLR)
• ACM Transactions on Information Systems (TOIS)
• IEEE Transactions on Knowledge and Data Engineering (TKDE)
• Information Retrieval Journal
• Neurocomputing Journal