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Autonomous, goal-driven agents powered by LLMs have recently emerged as promising tools for solving challenging problems without the need for task-specific finetuned models that can be expensive to procure. Currently, the design and…

Large language models (LLMs) are reshaping the recommender system paradigm by enabling users to express preferences and receive recommendations through conversations. Yet, aligning LLMs to the recommendation task remains challenging:…

Information Retrieval · Computer Science 2026-02-17 Yaochen Zhu , Harald Steck , Dawen Liang , Yinhan He , Vito Ostuni , Jundong Li , Nathan Kallus

With the capabilities of understanding and executing natural language instructions, Large language models (LLMs) can potentially act as a powerful tool for textual data augmentation. However, the quality of augmented data depends heavily on…

Computation and Language · Computer Science 2024-04-30 Yichuan Li , Kaize Ding , Jianling Wang , Kyumin Lee

We present a novel three-stage framework leveraging Large Language Models (LLMs) within a risk-aware multi-agent system for automate strategy finding in quantitative finance. Our approach addresses the brittleness of traditional deep…

Portfolio Management · Quantitative Finance 2025-11-04 Zhizhuo Kou , Holam Yu , Junyu Luo , Jingshu Peng , Xujia Li , Chengzhong Liu , Juntao Dai , Lei Chen , Sirui Han , Yike Guo

Optimization is as much about modeling the right problem as solving it. Identifying the right objectives, constraints, and trade-offs demands extensive interaction between researchers and stakeholders. Large language models can empower…

Artificial Intelligence · Computer Science 2026-04-06 Joshua Drossman , Alexandre Jacquillat , Sébastien Martin

Large Language Models (LLMs) have revolutionized various domains but encounter substantial challenges in tackling optimization modeling tasks for Operations Research (OR), particularly when dealing with complex problem. In this work, we…

Computation and Language · Computer Science 2025-06-24 Yang Wu , Yifan Zhang , Yurong Wu , Yuran Wang , Junkai Zhang , Jian Cheng

Large Language Model (LLM) agents often face significant credit assignment challenges in long-horizon, multi-step tasks due to sparse rewards. Existing value-free methods, such as Group Relative Policy Optimization (GRPO), encounter two…

Machine Learning · Computer Science 2026-03-11 Hui-Ze Tan , Xiao-Wen Yang , Hao Chen , Jie-Jing Shao , Yi Wen , Yuteng Shen , Weihong Luo , Xiku Du , Lan-Zhe Guo , Yu-Feng Li

Despite the utility of Large Language Models (LLMs) across a wide range of tasks and scenarios, developing a method for reliably evaluating LLMs across varied contexts continues to be challenging. Modern evaluation approaches often use LLMs…

Computation and Language · Computer Science 2024-01-31 Steffi Chern , Ethan Chern , Graham Neubig , Pengfei Liu

Training models to act as agents that can effectively navigate and perform actions in a complex environment, such as a web browser, has typically been challenging due to lack of training data. Large language models (LLMs) have recently…

Large Language Models (LLMs) are trained and aligned to follow natural language instructions with only a handful of examples, and they are prompted as task-driven autonomous agents to adapt to various sources of execution environments.…

Computation and Language · Computer Science 2023-10-03 Yang Su

Tool-using large language model (LLM) agents often face a fundamental tension between answer quality and execution cost. Fixed workflows are stable but inflexible, while free-form multi-step reasoning methods such as ReAct may improve task…

Artificial Intelligence · Computer Science 2026-03-23 Boyan Liu , Gongming Zhao , Hongli Xu

Large language models (LLMs) offer new opportunities for interacting with complex software artifacts, such as software models, through natural language. They present especially promising benefits for large software models that are difficult…

Software Engineering · Computer Science 2025-06-17 Lukasz Mazur , Nenad Petrovic , James Pontes Miranda , Ansgar Radermacher , Robert Rasche , Alois Knoll

Large Language Models (LLMs) have achieved impressive performance across various reasoning tasks. However, even state-of-the-art LLMs such as ChatGPT are prone to logical errors during their reasoning processes. Existing solutions, such as…

Computation and Language · Computer Science 2024-03-25 Chi Hu , Yuan Ge , Xiangnan Ma , Hang Cao , Qiang Li , Yonghua Yang , Tong Xiao , Jingbo Zhu

Large language models (LLMs) have been widely integrated into information retrieval to advance traditional techniques. However, effectively enabling LLMs to seek accurate knowledge in complex tasks remains a challenge due to the complexity…

Computation and Language · Computer Science 2025-05-27 Zhengliang Shi , Lingyong Yan , Dawei Yin , Suzan Verberne , Maarten de Rijke , Zhaochun Ren

Large Language Models (LLMs) often generate substantively relevant content but fail to adhere to formal constraints, leading to outputs that are conceptually correct but procedurally flawed. Traditional prompt refinement approaches focus on…

Artificial Intelligence · Computer Science 2026-01-08 Alberto Purpura , Li Wang , Sahil Badyal , Eugenio Beaufrand , Adam Faulkner

Large language model (LLM) agents have evolved to intelligently process information, make decisions, and interact with users or tools. A key capability is the integration of long-term memory capabilities, enabling these agents to draw upon…

Computation and Language · Computer Science 2025-08-04 Rana Salama , Jason Cai , Michelle Yuan , Anna Currey , Monica Sunkara , Yi Zhang , Yassine Benajiba

Using large language models (LLMs) to evaluate text quality has recently gained popularity. Some prior works explore the idea of using LLMs for evaluation, while they differ in some details of the evaluation process. In this paper, we…

Computation and Language · Computer Science 2023-10-10 Cheng-Han Chiang , Hung-yi Lee

Building scalable and reusable multi-agent decision policies from offline datasets remains a challenge in offline multi-agent reinforcement learning (MARL), as existing methods often rely on fixed observation formats and action spaces that…

Multiagent Systems · Computer Science 2026-04-28 Zhuohui Zhang , Bin Cheng , Bin He

We introduce Agent Process Reward Models (AgentPRM), a simple and scalable framework for training LLM agents to continually improve through interactions. AgentPRM follows a lightweight actor-critic paradigm, using Monte Carlo rollouts to…

Machine Learning · Computer Science 2025-02-17 Sanjiban Choudhury

In recent years, instruction fine-tuning (IFT) on large language models (LLMs) has garnered considerable attention to enhance model performance on unseen tasks. Attempts have been made on automatic construction and effective selection for…

Computation and Language · Computer Science 2024-10-25 Renhao Li , Minghuan Tan , Derek F. Wong , Min Yang