GradNormIR uses gradient norms from a retriever's own contrastive loss to detect out-of-distribution documents and schedule retriever updates before queries arrive.
In Proceedings of the 2024 Confer- ence on Empirical Methods in Natural Language Pro- cessing, pages 13752–13770, Miami, Florida, USA
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When Should Dense Retrievers Be Updated in Evolving Corpora? Detecting Out-of-Distribution Corpora Using GradNormIR
GradNormIR uses gradient norms from a retriever's own contrastive loss to detect out-of-distribution documents and schedule retriever updates before queries arrive.