From RankNet to LambdaRank to LambdaMART: An Overview, Chris J.C. Burges, 2010 (Microsoft Research) - Provides an overview of Learning to Rank algorithms, leading to LambdaMART, a widely used gradient boosted decision tree method for optimizing document rankings.
ColBERT: Efficient and Effective Passage Search via Contextualized Late Interaction over BERT, Omar Khattab, Matei Zaharia, 2020Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR '20)DOI: 10.48550/arXiv.2004.12832 - Introduces ColBERT, a model that improves retrieval effectiveness through fine-grained late interaction between query and document token embeddings, offering a balance between efficiency and relevance for re-ranking.