ACM WSDM 2022 report

The 15^th ACM International Conference on Web Search and Data Mining (WSDM 2022) was successfully held on 2/21 - 2/25/2022 online. It was originally planned to be held in Tempe, Arizona and changed to a virtual format due to the surge of Omicron. It was a five-day event with the middle 3 days dedicated to keynote speeches, single-session presentations, poster sessions, and sponsor talks. This brief report provides an overview of WSDM 2022 with organization and program details and statistics from Conference Chairs and Program Committee Chairs, as well as a message from the WSDM Steering Committee Chair to call for future WSDM conferences in the US (2024) and Europe (2025). Further details can be found at https://www.wsdm-conference.org/2022/. At the end of this report, we express our deep gratitude to authors, volunteers, special interest groups (SIGs), steering committee, and sponsors.