Two papers were accepted for International Conference on Web Search and Data Mining (WSDM) 2022:

• Ryoma Sato.
  Enumerating Fair Packages for Group Recommendations.
  In Proceedings of the Fifteenth International Conference on Web Search and Data Mining (WSDM), 2022.
• Ryoma Sato.
  Retrieving Black-box Optimal Images from External Databases.
  In Proceedings of the Fifteenth International Conference on Web Search and Data Mining (WSDM), 2022.