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Recent advances in group-based reinforcement learning (RL) have driven frontier large language models (LLMs) in single-turn tasks like mathematical reasoning. However, their scalability to multi-turn LLM agent training remains limited.…

Machine Learning · Computer Science 2025-10-29 Lang Feng , Zhenghai Xue , Tingcong Liu , Bo An

LLM-based agents for machine learning engineering (MLE) predominantly rely on tree search, a form of gradient-free optimization that uses scalar validation scores to rank candidates. As LLM reasoning capabilities improve, exhaustive…

Machine Learning · Computer Science 2026-04-14 Yifei Zhang , Xu Yang , Xiao Yang , Bowen Xian , Qizheng Li , Shikai Fang , Jingyuan Li , Jian Wang , Mingrui Xu , Weiqing Liu , Jiang Bian

Outcome-driven reinforcement learning has advanced reasoning in large language models (LLMs), but prevailing tool-augmented approaches train a single, monolithic policy that interleaves thoughts and tool calls under full context; this…

Artificial Intelligence · Computer Science 2025-10-08 Zhuofeng Li , Haoxiang Zhang , Seungju Han , Sheng Liu , Jianwen Xie , Yu Zhang , Yejin Choi , James Zou , Pan Lu

Large Vision Language Models (LVLMs) have made remarkable progress, enabling sophisticated vision-language interaction and dialogue applications. However, existing benchmarks primarily focus on reasoning tasks, often neglecting fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Cong Pang , Hongtao Yu , Zixuan Chen , Lewei Lu , Xin Lou

Large Language Model (LLM) based multi-agent systems (MAS) show remarkable potential in collaborative problem-solving, yet they still face critical challenges: low communication efficiency, poor scalability, and a lack of effective…

Computation and Language · Computer Science 2025-02-19 Weize Chen , Jiarui Yuan , Chen Qian , Cheng Yang , Zhiyuan Liu , Maosong Sun

We present a novel framework for automated interior design that combines large language models (LLMs) with grid-based integer programming to jointly optimize room layout and furniture placement. Given a textual prompt, the LLM-driven agent…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Chucheng Xiang , Ruchao Bao , Biyin Feng , Wenzheng Wu , Zhongyuan Liu , Yirui Guan , Ligang Liu

The proliferation of large language models (LLMs) has accelerated the adoption of agent-based workflows, where multiple autonomous agents reason, invoke functions, and collaborate to compose complex data pipelines. However, current…

Databases · Computer Science 2025-12-15 Zoi Kaoudi , Ioana Giurgiu

Automatic prompt optimization is an important approach to improving the performance of large language models (LLMs). Recent research demonstrates the potential of using LLMs as prompt optimizers, which can generate improved task prompts via…

Computation and Language · Computer Science 2025-01-28 Xinyu Tang , Xiaolei Wang , Wayne Xin Zhao , Siyuan Lu , Yaliang Li , Ji-Rong Wen

One of the grand enduring goals of AI is to create generalist agents that can learn multiple different tasks from diverse data via multitask learning (MTL). However, in practice, applying gradient descent (GD) on the average loss across all…

Machine Learning · Computer Science 2023-10-31 Bo Liu , Yihao Feng , Peter Stone , Qiang Liu

As large language models (LLMs) proliferate in scale, specialization, and latency profiles, the challenge of routing user prompts to the most appropriate model has become increasingly critical for balancing performance and cost. We…

Software Engineering · Computer Science 2025-09-19 Amine Barrak , Yosr Fourati , Michael Olchawa , Emna Ksontini , Khalil Zoghlami

Various human-designed prompt engineering techniques have been proposed to improve problem solvers based on Large Language Models (LLMs), yielding many disparate code bases. We unify these approaches by describing LLM-based agents as…

Artificial Intelligence · Computer Science 2024-08-23 Mingchen Zhuge , Wenyi Wang , Louis Kirsch , Francesco Faccio , Dmitrii Khizbullin , Jürgen Schmidhuber

Long-horizon decision-making tasks present significant challenges for LLM-based agents due to the need for extensive planning over multiple steps. In this paper, we propose a hierarchical framework that decomposes complex tasks into…

Machine Learning · Computer Science 2024-10-07 Qi Zhao , Haotian Fu , Chen Sun , George Konidaris

Distributed optimization is fundamental to modern machine learning applications like federated learning, but existing methods often struggle with ill-conditioned problems and face stability-versus-speed tradeoffs. We introduce fractional…

Machine Learning · Computer Science 2024-12-04 Andrei Lixandru , Marcel van Gerven , Sergio Pequito

The confluence of Federated Learning (FL) and Large Language Models (LLMs) is ushering in a new era in privacy-preserving natural language processing. However, the intensive memory requirements for fine-tuning LLMs pose significant…

Machine Learning · Computer Science 2024-06-18 Zhenqing Ling , Daoyuan Chen , Liuyi Yao , Yaliang Li , Ying Shen

Federated Learning (FL) is a recent development in distributed machine learning that collaboratively trains models without training data leaving client devices, preserving data privacy. In real-world FL, the training set is distributed over…

Machine Learning · Computer Science 2022-10-07 Jed Mills , Jia Hu , Geyong Min , Rui Jin , Siwei Zheng , Jin Wang

With the rapid development of Large Language Models (LLMs), LLM-based agents have been widely adopted in various fields, becoming essential for autonomous decision-making and interactive tasks. However, current work typically relies on…

Artificial Intelligence · Computer Science 2026-02-25 Shangheng Du , Jiabao Zhao , Jinxin Shi , Zhentao Xie , Xin Jiang , Yanhong Bai , Liang He

Designing efficient optimizers for large language models (LLMs) with low-memory requirements and fast convergence is an important and challenging problem. This paper makes a step towards the systematic design of such optimizers through the…

Machine Learning · Computer Science 2025-02-21 Wenbo Gong , Meyer Scetbon , Chao Ma , Edward Meeds

Leveraging machine-learning (ML) techniques for compiler optimizations has been widely studied and explored in academia. However, the adoption of ML in general-purpose, industry strength compilers has yet to happen. We propose MLGO, a…

Programming Languages · Computer Science 2021-01-14 Mircea Trofin , Yundi Qian , Eugene Brevdo , Zinan Lin , Krzysztof Choromanski , David Li

Large language model (LLM) agents are fundamentally constrained by context length on long-horizon tasks. We introduce Context-Folding, a framework that empowers agents to actively manage their working context. An agent can procedurally…

Computation and Language · Computer Science 2025-10-15 Weiwei Sun , Miao Lu , Zhan Ling , Kang Liu , Xuesong Yao , Yiming Yang , Jiecao Chen

With the rapid development of natural language processing technology, large-scale language models (LLM) have achieved remarkable results in a variety of tasks. However, how to effectively train these huge models and improve their…

Artificial Intelligence · Computer Science 2024-12-09 Jiajing Chen , Bingying Liu , Xiaoxuan Liao , Jia Gao , Hongye Zheng , Yue Li