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Bang Lin

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#natural language process... Preprint Sep 2026

DeepSeek-V4.1-Flash: Pushing the Limits of KV Cache Compression

The widespread adoption of long-horizon agents has made model workloads increasingly input-heavy. Although prior work has substantially reduced the cost of long-context computation, prefill remains computationally expensive, and large KV caches continue to strain HBM and SSD capacity and data-transfer bandwidth. Togeth...

De Xu, B. Li, Bang Lin et al. · 93 citations · ⚡4
Preprint Aug 2026

Contrastive Branch Policy Optimization

Requiring only outcome rewards and no process-level annotation, CBPO provides a practical solution for fine-grained credit assignment in tool-integrated agent training and consistently outperforms state-of-the-art policy-optimization and branch-based methods.

Ying Wang, Changlin Qiu, Bang Lin et al. · 0 citations

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