work Fast Forward Indexes Fast-CPU based re-ranking Dexter A benchnmark for open-domain complex answering QuanTemp An open-domain benchmark to verify claims with quantities and temporal expressions tutorials Explainable Information Retrieval Resources for the tutorial on Explainable IR as presented in SIGIR 2023, and FIRE 2023 Question Answering on the Curated Web Resources for the tutorial on Question Answering as presented in SIGIR 2020, and ICTIR 2021