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Large Language Models (LLMs) based agents excel at diverse tasks, yet they suffer from brittle procedural memory that is manually engineered or entangled in static parameters. In this work, we investigate strategies to endow agents with a…

Computation and Language · Computer Science 2026-04-16 Runnan Fang , Yuan Liang , Xiaobin Wang , Jialong Wu , Shuofei Qiao , Pengjun Xie , Fei Huang , Huajun Chen , Ningyu Zhang

Large language models (LLMs) encode a vast amount of world knowledge acquired from massive text datasets. Recent studies have demonstrated that LLMs can assist an embodied agent in solving complex sequential decision making tasks by…

Artificial Intelligence · Computer Science 2024-06-27 Bin Hu , Chenyang Zhao , Pu Zhang , Zihao Zhou , Yuanhang Yang , Zenglin Xu , Bin Liu

Large Language Models (LLMs) have shown remarkable capabilities in general natural language processing tasks but often fall short in complex reasoning tasks. Recent studies have explored human-like problem-solving strategies, such as…

Computation and Language · Computer Science 2023-12-19 Zhenran Xu , Senbao Shi , Baotian Hu , Jindi Yu , Dongfang Li , Min Zhang , Yuxiang Wu

Model ensemble is a useful approach in reinforcement learning (RL) for training effective agents. Despite wide success of RL, training effective agents remains difficult due to the multitude of factors requiring careful tuning, such as…

Machine Learning · Computer Science 2025-05-22 Yiwen Song , Qianyue Hao , Qingmin Liao , Jian Yuan , Yong Li

Self-evolution is a central research topic in enabling large language model (LLM)-based agents to continually improve their capabilities after pretraining. Recent research has witnessed a transition from reinforcement learning (RL)-free to…

Computation and Language · Computer Science 2026-02-10 Xiangyuan Xue , Yifan Zhou , Guibin Zhang , Zaibin Zhang , Yijiang Li , Chen Zhang , Zhenfei Yin , Philip Torr , Wanli Ouyang , Lei Bai

Reinforcement learning algorithms in multi-agent systems deliver highly resilient and adaptable solutions for common problems in telecommunications,aerospace, and industrial robotics. However, achieving an optimal global goal remains a…

Multiagent Systems · Computer Science 2021-05-18 Changgang Zheng , Shufan Yang , Juan Parra-Ullauri , Antonio Garcia-Dominguez , Nelly Bencomo

Large language models (LLMs) have recently been used for sequential decision making in interactive environments. However, leveraging environment reward signals for continual LLM actor improvement is not straightforward. We propose Skill Set…

Machine Learning · Computer Science 2024-06-25 Kolby Nottingham , Bodhisattwa Prasad Majumder , Bhavana Dalvi Mishra , Sameer Singh , Peter Clark , Roy Fox

Reinforcement learning (RL) is an effective approach to motion planning in autonomous driving, where an optimal driving policy can be automatically learned using the interaction data with the environment. Nevertheless, the reward function…

Robotics · Computer Science 2023-08-28 Lin-Chi Wu , Zengjie Zhang , Sofie Haesaert , Zhiqiang Ma , Zhiyong Sun

As models increasingly leverage multi-step reasoning strategies to solve complex problems, supervising the logical validity of these intermediate steps has become a critical research challenge. Process reward models address this by…

Artificial Intelligence · Computer Science 2025-08-28 Wei Xiong , Wenting Zhao , Weizhe Yuan , Olga Golovneva , Tong Zhang , Jason Weston , Sainbayar Sukhbaatar

As large language models (LLMs) become more specialized, we envision a future where millions of expert LLMs exist, each trained on proprietary data and excelling in specific domains. In such a system, answering a query requires selecting a…

Autonomous agents powered by large language models (LLMs) show significant potential for achieving high autonomy in various scenarios such as software development. Recent research has shown that LLM agents can leverage past experiences to…

Computation and Language · Computer Science 2024-05-08 Chen Qian , Jiahao Li , Yufan Dang , Wei Liu , YiFei Wang , Zihao Xie , Weize Chen , Cheng Yang , Yingli Zhang , Zhiyuan Liu , Maosong Sun

Dynamic Data selection aims to accelerate training by prioritizing informative samples during online training. However, existing methods typically rely on task-specific handcrafted metrics or static/snapshot-based criteria to estimate…

Machine Learning · Computer Science 2026-05-14 Suorong Yang , Fangjian Su , Hai Gan , Ziqi Ye , Jie Li , Baile Xu , Furao Shen , Soujanya Poria

Recent developments in Large Language Models (LLMs) have shifted from pre-training scaling to post-training and test-time scaling. Across these developments, a key unified paradigm has arisen: Learning from Rewards, where reward signals act…

Computation and Language · Computer Science 2025-06-13 Xiaobao Wu

This research focuses on enhancing reinforcement learning (RL) algorithms by integrating penalty functions to guide agents in avoiding unwanted actions while optimizing rewards. The goal is to improve the learning process by ensuring that…

Machine Learning · Computer Science 2025-04-07 Sai Gana Sandeep Pula , Sathish A. P. Kumar , Sumit Jha , Arvind Ramanathan

The inherent uncertainty in the environmental transition model of Reinforcement Learning (RL) necessitates a delicate balance between exploration and exploitation. This balance is crucial for optimizing computational resources to accurately…

Machine Learning · Computer Science 2025-05-21 Yongxin Deng , Xihe Qiu , Jue Chen , Xiaoyu Tan

The popularity of Large Language Models (LLMs) have unleashed a new age ofLanguage Agents for solving a diverse range of tasks. While contemporary frontier LLMs are capable enough to power reasonably good Language agents, the closed-API…

Computation and Language · Computer Science 2024-10-11 Priyanshu Gupta , Shashank Kirtania , Ananya Singha , Sumit Gulwani , Arjun Radhakrishna , Sherry Shi , Gustavo Soares

Large language models (LLMs) are promising backbones for generative recommender systems, yet a key challenge remains underexplored: verbalization, i.e., converting structured user interaction logs into effective natural language inputs.…

Artificial Intelligence · Computer Science 2026-03-20 Yucheng Shi , Ying Li , Yu Wang , Yesu Feng , Arjun Rao , Rein Houthooft , Shradha Sehgal , Jin Wang , Hao Zhen , Ninghao Liu , Linas Baltrunas

Reward models (RMs) are crucial for the training and inference-time scaling up of large language models (LLMs). However, existing reward models primarily focus on human preferences, neglecting verifiable correctness signals which have shown…

Computation and Language · Computer Science 2025-02-27 Hao Peng , Yunjia Qi , Xiaozhi Wang , Zijun Yao , Bin Xu , Lei Hou , Juanzi Li

We deploy large language models (LLMs) as business development (BD) agents for persuasive price negotiation in online travel agencies (OTAs). The agent must follow a multi-stage Standard Operating Procedure (SOP) and strict guardrails (no…

Computation and Language · Computer Science 2026-04-30 Xia Zeng , Yihan Chen , Luhui Liu , Chao Luo , Ye Chen , Zhuoran Zhuang

The pursuit of human-level artificial intelligence (AI) has significantly advanced the development of autonomous agents and Large Language Models (LLMs). LLMs are now widely utilized as decision-making agents for their ability to interpret…