Advances in information retrieval collection on the European conference on information retrieval 2023

This paper introduces the Collection on ECIR 2023. The 45th European Conference on Information Retrieval (ECIR 2023) was held in Dublin, Ireland, during April 2–6, 2023. The conference was the largest ECIR ever, and brought together hundreds of researchers from Europe and abroad. A selection of papers shortlisted for the best paper awards was asked to submit expanded versions appearing in this Discover Computing (formerly the Information Retrieval Journal) Collection on ECIR 2023. First, an analytic paper on incorporating first stage retrieval status values as input in neural cross-encoder re-rankers. Second, new models and new data for a new task of temporal natural language inference. Third, a weak supervision approach to video retrieval overcoming the need for large-scale human labeled training data. Together, these papers showcase the breadth and diversity of current research on information retrieval.