collaborators

5 papers

cs.AI2026

Longer Context, Deeper Thinking: Uncovering the Role of Long-Context Ability in Reasoning

Wang Yang, Zirui Liu, Hongye Jin +3

Recent language models exhibit strong reasoning capabilities, yet the influence of long-context capacity on reasoning remains underexplored. In this work, we hypothesize that curre…

cs.CL2026

JoyAI-LLM Flash: Advancing Mid-Scale LLMs with Token Efficiency

Aichen Cai, Anmeng Zhang, Anyu Li +66

We introduce JoyAI-LLM Flash, an efficient Mixture-of-Experts (MoE) language model designed to redefine the trade-off between strong performance and token efficiency in the sub-50B…

cs.LG2026

Learning to Optimize Multi-Objective Alignment Through Dynamic Reward Weighting

Yining Lu, Zilong Wang, Shiyang Li +6

Prior work in multi-objective reinforcement learning typically uses linear reward scalarization with fixed weights, which provably fails to capture non-convex Pareto fronts and thu…

cs.AI2025

DeepPlanner: Scaling Planning Capability for Deep Research Agents via Advantage Shaping

Wei Fan, Wenlin Yao, Zheng Li +6

Large language models (LLMs) augmented with multi-step reasoning and action generation abilities have shown promise in leveraging external tools to tackle complex tasks that requir…

cs.LG2025

Improving Sampling Efficiency in RLVR through Adaptive Rollout and Response Reuse

Yuheng Zhang, Wenlin Yao, Changlong Yu +5

Large language models (LLMs) have achieved impressive reasoning performance, with reinforcement learning with verifiable rewards (RLVR) emerging as a standard paradigm for post-tra…