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We study reliability in autonomous language-model agents that translate user mandates into validated tool actions under real capital. The setting is DX Terminal Pro, a 21-day deployment in which 3,505 user-funded agents traded real ETH in a…

Artificial Intelligence · Computer Science 2026-04-30 T. J. Barton , Chris Constantakis , Patti Hauseman , Annie Mous , Alaska Hoffman , Brian Bergeron , Hunter Goodreau

The ability to use tools is fundamental for large language model (LLM) agents. Given a task, existing systems use LLMs to plan and generate tool calls, which are executed by real-world tools to complete the task. However, tool calls are…

Software Engineering · Computer Science 2026-02-24 Zeyu Zhang , Guohao Li , Zhenchang Xing , Alexandros Apostolopoulos , Yu Lin Lee , Liang Zheng

This paper addresses the challenge of edge caching in dynamic environments, where rising traffic loads strain backhaul links and core networks. We propose a Proximal Policy Optimization (PPO)-based caching strategy that fully incorporates…

Networking and Internet Architecture · Computer Science 2024-11-18 Farnaz Niknia , Ping Wang

Real-world user requests to LLM agents are often underspecified. Agents must interact to acquire missing information and make correct downstream decisions. However, current multi-turn GRPO-based methods often rely on trajectory-level reward…

Artificial Intelligence · Computer Science 2026-03-03 Fanqi Kong , Jiayi Zhang , Mingyi Deng , Chenglin Wu , Yuyu Luo , Bang Liu

In a multi-agent environment, In order to overcome and alleviate the non-stationarity of the multi-agent environment, the mainstream method is to adopt the framework of Centralized Training Decentralized Execution (CTDE). This thesis is…

Multiagent Systems · Computer Science 2023-05-30 Zeng Da

Multi-Agent Proximal Policy Optimization (MAPPO) is a variant of the Proximal Policy Optimization (PPO) algorithm, specifically tailored for multi-agent reinforcement learning (MARL). MAPPO optimizes cooperative multi-agent settings by…

Machine Learning · Computer Science 2026-05-14 Changha Lee , Gyusang Cho

Clinical image interpretation is inherently multi-step and tool-centric: clinicians iteratively combine visual evidence with patient context, quantify findings, and refine their decisions through a sequence of specialized procedures. While…

Artificial Intelligence · Computer Science 2026-03-09 Lin Fan , Pengyu Dai , Zhipeng Deng , Haolin Wang , Xun Gong , Yefeng Zheng , Yafei Ou

Large language models are increasingly trained via reinforcement learning for personalized recommendation tasks, but standard methods like GRPO rely on sparse, sequence-level rewards. These obscure which tokens actually contribute to…

Artificial Intelligence · Computer Science 2026-05-08 Abhijnan Nath , Alireza Bagheri Garakani , Tianchen Zhou , Fan Yang , Yan Gao , Nikhil Krishnaswamy

Combining Chain-of-Thought (CoT) with Reinforcement Learning (RL) improves text-to-image (T2I) generation, yet the underlying interaction between CoT's exploration and RL's optimization remains unclear. We present a systematic entropy-based…

Machine Learning · Computer Science 2026-04-06 Han Song , Yucheng Zhou , Jianbing Shen , Yu Cheng

Reinforcement learning (RL) is a key paradigm for post-training large language models (LLMs), but the widely used Group Relative Policy Optimization (GRPO) often suffers from entropy collapse: exploration quickly disappears, policies…

Machine Learning · Computer Science 2026-05-19 Chen Wang , Zhaochun Li , Jionghao Bai , Hexuan Deng , Ge Lan , Yue Wang

Reasoning LLMs show improved performance with longer chains of thought. However, recent work has highlighted their tendency to overthink, continuing to revise answers even after reaching the correct solution. We quantitatively confirm this…

Machine Learning · Computer Science 2026-04-09 Xi Wang , James McInerney , Lequn Wang , Nathan Kallus

Large language model (LLM)-based Multi-agent systems (MAS) have shown promise in tackling complex collaborative tasks, where agents are typically orchestrated via role-specific prompts. While the quality of these prompts is pivotal, jointly…

Artificial Intelligence · Computer Science 2026-05-11 Zhexuan Wang , Xuebo Liu , Li Wang , Zifei Shan , Yutong Wang , Zhenxi Song , Min Zhang

Feature visualization, also known as "dreaming", offers insights into vision models by optimizing the inputs to maximize a neuron's activation or other internal component. However, dreaming has not been successfully applied to language…

Computation and Language · Computer Science 2024-02-06 T. Ben Thompson , Zygimantas Straznickas , Michael Sklar

We present Sequential Policy Optimization for Simultaneous Machine Translation (SeqPO-SiMT), a new policy optimization framework that defines the simultaneous machine translation (SiMT) task as a sequential decision making problem,…

Computation and Language · Computer Science 2025-05-28 Ting Xu , Zhichao Huang , Jiankai Sun , Shanbo Cheng , Wai Lam

Despite rapid recent progress in the terminal capabilities of large language models, the training data strategies behind state-of-the-art terminal agents remain largely undisclosed. We address this gap through a systematic study of data…

Computation and Language · Computer Science 2026-02-25 Renjie Pi , Grace Lam , Mohammad Shoeybi , Pooya Jannaty , Bryan Catanzaro , Wei Ping

Goal changes are a defining feature of real world multi-turn interactions, yet current agent benchmarks primarily evaluate static objectives or one-shot tool use. We introduce AgentChangeBench, a benchmark explicitly designed to measure how…

Artificial Intelligence · Computer Science 2025-10-22 Manik Rana , Calissa Man , Anotida Expected Msiiwa , Jeffrey Paine , Kevin Zhu , Sunishchal Dev , Vasu Sharma , Ahan M R

As AI agents increasingly operate in open, real-world environments, they require a deep synergy of multimodal perception, tool invocation with multi-hop reasoning, and dynamic interaction with users. However, existing benchmarks fail to…

Artificial Intelligence · Computer Science 2026-05-28 Yunqi Liu , Tong Niu , Zitong Wang , Zhenlong Dai , Yuqi Qing , Weiqiang Wang , Jian Liu

Progress in language model development is often driven by comparative decisions: which architecture to adopt, which pretraining corpus to use, or which training recipe to apply. Making these decisions well requires reliable performance…

Computation and Language · Computer Science 2026-05-19 Arkil Patel , Siva Reddy , Marius Mosbach , Dzmitry Bahdanau

Large language models are increasingly deployed as autonomous agents that must plan, act, and recover from mistakes through long-horizon interaction with environments that provide rich feedback. However, prevailing outcome-driven…

Artificial Intelligence · Computer Science 2026-03-18 Rui Ge , Yichao Fu , Yuyang Qian , Junda Su , Yiming Zhao , Peng Zhao , Hao Zhang

Vision-language models with extended reasoning succeed on complex problems, but many real-world problems require external tools that internal reasoning alone often cannot resolve. Agentic reasoning therefore interleaves two behaviors with a…

Computation and Language · Computer Science 2026-05-28 Minki Kang , Shizhe Diao , Ryo Hachiuma , Sung Ju Hwang , Pavlo Molchanov , Yu-Chiang Frank Wang , Byung-Kwan Lee