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Zhichao Wang

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#artificial intelligence Preprint Aug 2026

Which Negatives Matter? Ask Your Text Encoder: Adaptive Similarity Margins for Dense-Caption Retrieval

HN-CLIP is introduced, which uses the text encoder's own text-text geometry to construct per-negative adaptive similarity margins, and improves all six tested fine-tuning frameworks on the in-domain benchmarks and reaches the strongest full-data baseline with only 20% of the training data.

Haoyue Liu, Yeheng Chen, Zhichao Wang et al. · 0 citations