Author

Jianjin Zhang

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Book Open access Jul 2026

HybridSparse: An End-to-End Hybrid Framework for Efficient Large-Scale Retrieval

This work introduces HybridSparse, an end-to-end hybrid retrieval framework that strengthens sparse--dense interaction across modeling, training, and serving and adopts a unified encoder with a shared backbone and jointly optimizes lexical and semantic representations through co-training.

Haotong Bao, Jianjin Zhang, Weihao Han et al. · Annual International ACM SIG... · 0 citations

Preprint Aug 2026

DASH: Divergence-Adaptive Supervision Horizons for On-Policy Self-Distillation of Reasoning Models

DASH maps the gap between each local distillation signal and the sequence-level mean to an adaptive propagation gate and then uses these gates to control backward multi-step aggregation and improves over matched vanilla OPSD reruns on every benchmark at all three model scales.

Zhi-Yan Hou, Xinyu Tang, Hongyan An et al. · 1 citation

Preprint Aug 2026

CRAFT: Compression via Recursive Adaptive Fusion of Video Tokens for Vision-Language Models

Experiments on multiple representative video benchmarks show that CRAFT consistently outperforms prior state-of-the-art token-compression methods and shows significant efficiency improvement.

Yu Chen, Xiao-Hong Li, Xiaole Wang et al. · 0 citations