Unsupervised Dense Retrieval with Conterfactual Contrastive Learning.

@inproceedings{chen-2026-unsupervised, author = {Haitian Chen and Qingyao Ai and Yujia Zhou and Xiao Wang and Yiqun Liu and Fen Lin and Qin Liu}, title = {{Unsupervised Dense Retrieval with Conterfactual Contrastive Learning}}, booktitle = {{Proceedings of the Nineteenth ACM International Conference on Web Search and Data Mining, WSDM 2026, Boise, ID, USA, February 22-26, 2026}}, pages = {47--57}, publisher = {ACM}, year = {2026}, url = {https://doi.org/10.1145/3773966.3778015}, doi = {https://doi.org/10.1145/3773966.3778015} }