collaborators

8 papers

cs.AI2026

SHarP: Saliency-based Pruning of Agent Harnesses

Xinyi Gao, Qiucheng Wu, Kaizhi Qian +3

Agent harnesses are systems that coordinate model calls, tool use, and task execution to help large language models complete complex tasks. To meet task requirements and address fa…

cs.CL2026

Unlocking Speech-Text Compositional Powers: Instruction-Following Speech Language Models without Instruction Tuning

Congrui Du, Yang Zhang, Kaizhi Qian +1

Instruction tuning for speech language models (SLMs) is substantially more challenging than for text-based large language models (LLMs), as it requires learning a new modality and…

cs.CL2026

VISUALSKILL: Multimodal Skills for Computer-Use Agents

Ziyan Jiang, Li An, Yujian Liu +5

Computer-use agents (CUAs) approach human-level performance on standardised benchmarks but still struggle on long-horizon tasks and unseen software. Existing skill libraries addres…

cs.CY2026

KT4EQG: Personalized Exercise Question Generation via Knowledge Tracing

Xinyi Gao, Qiucheng Wu, Lu Ding +5

Educational Question Generation (EQG) aims to synthesize customized exercise questions that enhance student learning. An effective EQG system should ideally personalize questions f…

cs.CL2025

ProsodyLM: Uncovering the Emerging Prosody Processing Capabilities in Speech Language Models

Kaizhi Qian, Xulin Fan, Junrui Ni +4

Speech language models refer to language models with speech processing and understanding capabilities. One key desirable capability for speech language models is the ability to cap…

cs.CL2025

A Hierarchical Probabilistic Framework for Incremental Knowledge Tracing in Classroom Settings

Xinyi Gao, Qiucheng Wu, Yang Zhang +4

Knowledge tracing (KT) aims to estimate a student's evolving knowledge state and predict their performance on new exercises based on performance history. Many realistic classroom s…

cs.CL2025

ThinkPrune: Pruning Long Chain-of-Thought of LLMs via Reinforcement Learning

Bairu Hou, Yang Zhang, Jiabao Ji +4

We present ThinkPrune, a simple yet effective method for pruning the thinking length for long-thinking LLMs, which has been found to often produce inefficient and redundant thinkin…

cs.CL2025

PLAY2PROMPT: Zero-shot Tool Instruction Optimization for LLM Agents via Tool Play

Wei Fang, Yang Zhang, Kaizhi Qian +2

Large language models (LLMs) are increasingly integrated with specialized external tools, yet many tasks demand zero-shot tool usage with minimal or noisy documentation. Existing s…