When Does Dense Retrieval Need Asymmetric Geometry? A Bias-Variance Theory of Shared and Dual Projections
cs.IR, cs.LG
Submitted: 2026-09-26
Updated: 2026-09-26
Terminology
Sources
- Towards General Text Embeddings with Multi-stage Contrastive Learning
- Text Embeddings by Weakly-Supervised Contrastive Pre-training
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