We are very proud to announce that the paper titled Evaluating Mixed-initiative Conversational Search Systems via User Simulation by Ivan Sekulic (Universita della Svizzera Italiana), Mohammad Aliannejadi (IRLab, University of Amsterdam), and Fabio Crestani (Universita della Svizzera Italiana) is a runner-up for the best paper award at the 15th ACM International Conference on Web Search and Data Mining (WSDM 2022). The paper can be found here.