activity
20222026
most citedIs ChatGPT a Good Recommender? A Preliminary Study

46 citations · 156 across the 24 of their papers we have counts for

collaborators

24 papers

cs.AI2026

PCSD: Persistent Consistency for Self-Distillation in Agentic Reinforcement Learning

Chunji Lv, Yangguang Wei, Junlin Liu +6

Large language model agents have shown strong potential in complex interactive tasks, yet their reinforcement learning (RL) is often hindered by sparse rewards, as a long multi-tur…

cs.LG2026

ClawTrack: Towards Trace-Level Evaluation and Improvement of Real-World Autonomous Agents

Xingjian Wu, Xuhang Zhu, Xingchen Liu +6

As LLM-based agents are deployed in complex, multi-step workflows, a critical evaluation gap has emerged: most existing benchmarks judge only final outcomes, unable to distinguish…

cs.LG2026

Contrastive Reinforced Policy Optimization via Privileged Self-Distillation

Xingjian Wu, Junlin Liu, Xingchen Liu +6

Recent advances in post-training Large Language Models (LLMs) increasingly rely on Reinforcement Learning with Verifiable Rewards (RLVR) or On-Policy Self-Distillation (OPSD). Whil…

cs.AI2026

DecoEvo: Score-Decoupled Co-Evolution of Solver and Rubric-Generator Skills in Text Space

Jiangwang Chen, Zixin Song, Junlin Liu +10

Text-space optimization adapts large language models (LLMs) by editing external natural-language artifacts rather than model weights, so the optimized artifacts remain inspectable…

cs.AI2026

From Proprietary to Open-Source: Bridging the Distribution Gap via Multi-Agent Protocol Distillation in Agentic Search

Junlin Liu, Jiangwang Chen, Zixin Song +7

Agentic search enables large language models to solve knowledge-intensive tasks by interleaving multi-step reasoning with retrieval, yet optimizing this with outcome-based reinforc…

cs.CL2026

Beyond Relevance-Centric Retrieval: Rubric-Oriented Document Set Selection and Ranking

Kailin Jiang, Lei Liu, Jian Xi +7

As large language models and AI agents become the primary consumers of search results, document set quality determines the upper bound of downstream generation. Yet existing evalua…

cs.CL2026

PReM: Learning What to Preserve and When to Refresh for Context Compression

Bohan Yu, Lei Shen, Chenxi Zhou +5

Efficient long-context inference is not only about reducing memory cost, but also about keeping useful contextual evidence accessible as generation proceeds. However, existing comp…

cs.LG2026

Skill-RM: Unifying Heterogeneous Evaluation Criteria via Agent Skill

Tao Chen, Gangwei Jiang, Pengyu Cheng +10

Reward models (RMs) provide critical feedback signals for LLM post-training, notably in reinforced fine-tuning (RFT) and reinforcement learning (RL) pipelines. However, current rew…

cs.AI2026

Evolutionary Enhanced Multi-Agent Reinforcement Learning for Cooperative Air Combat

Chengwei Li, Junlin Liu, Yang Gao

As modern air combat evolves toward beyond-visual-range (BVR) multi-aircraft cooperative engagements, autonomous decision-making for unmanned combat aerial vehicles (UCAVs) faces s…

cs.LG2026

Gradient Starvation in Binary-Reward GRPO: Why Group-Mean Centering Fails and Why the Simplest Fix Works

Wenhua Nie, Jianan Wu, Junlin Liu +6

Group Relative Policy Optimization (GRPO) is a standard algorithm for reinforcement learning from verifiable rewards, but its group-mean-centered advantage can fail under binary re…

cs.LG2026

The Coupling Tax: How Shared Token Budgets Undermine Visible Chain-of-Thought Under Fixed Output Limits

Wenhua Nie, Junlin Liu, Jianan Wu +5

Chain-of-thought reasoning is often treated as a monotone way to improve language-model accuracy by letting a model think longer. We identify a countervailing effect, the coupling…

cs.CL2026

General365: Benchmarking General Reasoning in Large Language Models Across Diverse and Challenging Tasks

Junlin Liu, Shengnan An, Shuang Zhou +10

Contemporary large language models (LLMs) have demonstrated remarkable reasoning capabilities, particularly in specialized domains like mathematics and physics. However, their abil…

cs.CL2025

AMO-Bench: Large Language Models Still Struggle in High School Math Competitions

Shengnan An, Xunliang Cai, Xuezhi Cao +8

We present AMO-Bench, an Advanced Mathematical reasoning benchmark with Olympiad level or even higher difficulty, comprising 50 human-crafted problems. Existing benchmarks have wid…

cs.CE2025

Deep Reinforcement Learning in Factor Investment

Junlin Liu

Deep reinforcement learning has shown promise in trade execution, yet its use in low-frequency factor portfolio construction remains under-explored. A key obstacle is the high-dime…

cs.LG2025

A Neuro-inspired Interpretation of Unlearning in Large Language Models through Sample-level Unlearning Difficulty

Xiaohua Feng, Yuyuan Li, Chengye Wang +3

Driven by privacy protection laws and regulations, unlearning in Large Language Models (LLMs) is gaining increasing attention. However, current research often neglects the interpre…

cs.SE2024

ContextModule: Improving Code Completion via Repository-level Contextual Information

Zhanming Guan, Junlin Liu, Jierui Liu +7

Large Language Models (LLMs) have demonstrated impressive capabilities in code completion tasks, where they assist developers by predicting and generating new code in real-time. Ho…

cs.IR2023

Exploring Recommendation Capabilities of GPT-4V(ision): A Preliminary Case Study

Peilin Zhou, Meng Cao, You-Liang Huang +6

Large Multimodal Models (LMMs) have demonstrated impressive performance across various vision and language tasks, yet their potential applications in recommendation tasks with visu…

cs.CL2023★ 41 cited

A Survey of Large Language Models in Medicine: Progress, Application, and Challenge

Hongjian Zhou, Fenglin Liu, Boyang Gu +16

Large language models (LLMs), such as ChatGPT, have received substantial attention due to their capabilities for understanding and generating human language. While there has been a…

cs.CV2023★ 11 cited

Qilin-Med-VL: Towards Chinese Large Vision-Language Model for General Healthcare

Junling Liu, Ziming Wang, Qichen Ye +3

Large Language Models (LLMs) have introduced a new era of proficiency in comprehending complex healthcare and biomedical topics. However, there is a noticeable lack of models in la…

cs.CL2023★ 13 cited

Qilin-Med: Multi-stage Knowledge Injection Advanced Medical Large Language Model

Qichen Ye, Junling Liu, Dading Chong +8

Integrating large language models (LLMs) into healthcare holds great potential but faces challenges. Pre-training LLMs from scratch for domains like medicine is resource-heavy and…

cs.IR2023★ 6 cited

LLMRec: Benchmarking Large Language Models on Recommendation Task

Junling Liu, Chao Liu, Peilin Zhou +8

Recently, the fast development of Large Language Models (LLMs) such as ChatGPT has significantly advanced NLP tasks by enhancing the capabilities of conversational models. However,…

cs.CL2023★ 33 cited

Benchmarking Large Language Models on CMExam -- A Comprehensive Chinese Medical Exam Dataset

Junling Liu, Peilin Zhou, Yining Hua +8

Recent advancements in large language models (LLMs) have transformed the field of question answering (QA). However, evaluating LLMs in the medical field is challenging due to the l…

cs.IR2023★ 46 cited

Is ChatGPT a Good Recommender? A Preliminary Study

Junling Liu, Chao Liu, Peilin Zhou +3

Recommendation systems have witnessed significant advancements and have been widely used over the past decades. However, most traditional recommendation methods are task-specific a…

cs.IR2022★ 6 cited

Making Recommender Systems Forget: Learning and Unlearning for Erasable Recommendation

Yuyuan Li, Xiaolin Zheng, Chaochao Chen +1

Privacy laws and regulations enforce data-driven systems, e.g., recommender systems, to erase the data that concern individuals. As machine learning models potentially memorize the…