collaborators

11 papers

cs.CL2026

Random Attention: Rethinking KV Cache Eviction for Efficient Reasoning

Heng Wang, Jielin Qiu, Wenting Zhao +8

Large language models achieve superior performance on tasks that require extended reasoning, but long chains of thought make the KV cache a severe memory bottleneck. Existing KV ca…

cs.LG2026

AI4AI at Test-Time: Strong-to-Weak Capability Transfer via Harnesses

Cheng Qian, Wenting Zhao, Liangwei Yang +6

Recent work on distillation transfers the capabilities of large models to smaller ones often by updating the latter's parameters, through teacher forcing, on-policy distillation, a…

cs.AI2026

PlanBench-XL: Evaluating Long-Horizon Planning of LLM Tool-Use Agents in Large-Scale Tool Ecosystems

Jiayu Liu, Qihan Lin, Cheng Qian +8

LLM agents increasingly operate in large tool ecosystems, where real-world tasks require discovering relevant tools, inferring implicit sub-goals, and adapting to dynamic environme…

cs.CL2026

OctoNest: Adaptive Cross-Device Execution through Stateful Control

Shu Yao, Yuhua Luo, Qian Long +7

Computer use agents are expanding from single-device operation toward cross-device systems that coordinate tasks across heterogeneous environments. Execution conditions are often o…

cs.CL2026

ACCORD: Action-Conditioned Contextual Grounding for Language Agents

Lai Jiang, Cheng Qian, Zhenhailong Wang +3

User instructions are often underspecified because humans rely on implicit assumptions about the surrounding environment. For large language model (LLM) agents operating in informa…

cs.CL2026

Ling and Ring 2.6 Technical Report: Efficient and Instant Agentic Intelligence at Trillion-Parameter Scale

Ang Li, Ben Liu, Bin Han +215

Efficient and scalable agentic intelligence requires models that can deliver both low-latency responses and strong reasoning capabilities while remaining practical to train, serve,…

cs.LG2026

On Effectiveness and Efficiency of Agentic Tool-calling and RL Training

Tong Liu, Cheng Qian, Matej Cief +4

Tool-calling is a central component of modern large language model (LLM) agents, equipping them with skills beyond their parametric knowledge. This paper studies tool-calling along…

cs.SE2025

LoCoBench-Agent: An Interactive Benchmark for LLM Agents in Long-Context Software Engineering

Jielin Qiu, Zuxin Liu, Zhiwei Liu +18

As large language models (LLMs) evolve into sophisticated autonomous agents capable of complex software development tasks, evaluating their real-world capabilities becomes critical…

cs.LG2025

xRouter: Training Cost-Aware LLMs Orchestration System via Reinforcement Learning

Cheng Qian, Zuxin Liu, Shirley Kokane +10

Modern LLM deployments confront a widening cost-performance spectrum: premium models deliver strong reasoning but are expensive, while lightweight models are economical yet brittle…

cs.AI2025

UserRL: Training Interactive User-Centric Agent via Reinforcement Learning

Cheng Qian, Zuxin Liu, Akshara Prabhakar +10

Reinforcement learning (RL) has shown promise in training agentic models that move beyond static benchmarks to engage in dynamic, multi-turn interactions. Yet, the ultimate value o…

cs.SE2025

LoCoBench: A Benchmark for Long-Context Large Language Models in Complex Software Engineering

Jielin Qiu, Zuxin Liu, Zhiwei Liu +14

The emergence of long-context language models with context windows extending to millions of tokens has created new opportunities for sophisticated code understanding and software d…