The paper "Efficient Inverted Indexes for Approximate Retrieval over Learned Sparse Representations" by Sebastian Bruch, Franco Maria Nardini, Cosimo Rulli, and Rossano Venturini, and the paper "A Reproducibility Study of PLAID" by Sean MacAvaney and Nicola Tonellotto have been conferred with the Best Paper Runner Up Award at the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval, Washington D.C., USA, July 14-17, 2024.