الباحثون

Fei Yu

المنشورات 4

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SecJev: Bringing Security Expertise to System One Decision Models

Zheng Chen, Fei Yu, Haohao Huang وآخرون · 2026

Security workflows need models that turn complex observations and explicit policies into decisions. System One models introduced by Jev return typed predictions and probabilities; security specialization supplies the domain expertise behind those predictions. We introduce SecJev, to our knowledge the first family of Je …

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OptiCom: A Unified Framework for State-Conditioned Composition in LLM-Driven Optimization

Chenxing Wei, Sichen Liu, Lizhao Liu وآخرون · 2026

Large language models (LLMs) are increasingly deployed to solve complex scientific and practical problems via iterative optimization. However, dynamically coordinating diverse search mechanisms as candidate quality, failure modes, and resource budgets evolve remains a critical open challenge. Targeted empirical diagnos …

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Pistis Technical Report

Heyun Chen, Xiaohan Lan, Jiaxi Li وآخرون · 2026

We introduce the Pistis model family, comprising 27B- and 9B-parameter multimodal large language models built on Qwen3.6 and Qwen3.5, respectively, and developed through a general and scalable post-training framework. The framework first establishes a strong foundation through large-scale multimodal supervised fine-tun …

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Prediction Dynamics in Depth-Recurrent Language Models

Xinyue Luo, Fei Yu · 2026

Depth-recurrent language models refine predictions through repeated latent updates. Why can intermediate answers agree with the endpoint while their scores continue to change? We derive a sharp margin characterization that decomposes the conservatism of a magnitude bound into common translation, direction relative to t …

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