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Despite the rapid progress, LLMs for sequential decision-making (i.e., LLM agents) still struggle to produce diverse outputs. This leads to insufficient exploration, convergence to sub-optimal solutions, and becoming stuck in loops. Such…

Computation and Language · Computer Science 2026-04-21 Priya Gurjar , Md Farhan Ishmam , Kenneth Marino

Large Language Models (LLMs) have empowered autonomous agents to handle complex web navigation tasks. While recent studies integrate tree search to enhance long-horizon reasoning, applying these algorithms in web navigation faces two…

Artificial Intelligence · Computer Science 2026-02-17 Weiming Zhang , Jihong Wang , Jiamu Zhou , Qingyao Li , Xinbei Ma , Congmin Zheng , Xingyu Lou , Weiwen Liu , Zhuosheng Zhang , Jun Wang , Yong Yu , Weinan Zhang

Neural Architecture Search (NAS) aims to automatically discover high-performing deep neural network (DNN) architectures. However, conventional algorithm-driven NAS relies on carefully hand-crafted search spaces to ensure executability,…

Machine Learning · Computer Science 2026-04-21 Masakazu Yoshimura , Zitang Sun , Yuiko Sakuma , Junji Otsuka , Atsushi Irie , Takeshi Ohashi

Reinforcement learning (RL) with tree search has demonstrated superior performance in traditional reasoning tasks. Compared to conventional independent chain sampling strategies with outcome supervision, tree search enables better…

Machine Learning · Computer Science 2025-06-16 Zhenyu Hou , Ziniu Hu , Yujiang Li , Rui Lu , Jie Tang , Yuxiao Dong

While scaling test-time compute through trajectory-level sampling has significantly improved Graphical User Interface (GUI) agents, the lack of regressive ability prevents the reuse of partial successes and the recovery from early missteps.…

Artificial Intelligence · Computer Science 2026-02-04 Sizhe Tang , Rongqian Chen , Tian Lan

Large language models (LLMs) have demonstrated powerful decision-making and planning capabilities in solving complicated real-world problems. LLM-based autonomous agents can interact with diverse tools (e.g., functional APIs) and generate…

Computation and Language · Computer Science 2023-10-23 Yuchen Zhuang , Xiang Chen , Tong Yu , Saayan Mitra , Victor Bursztyn , Ryan A. Rossi , Somdeb Sarkhel , Chao Zhang

Large Language Models have excelled in remarkable reasoning capabilities with advanced prompting techniques, but they fall short on tasks that require exploration, strategic foresight, and sequential decision-making. Recent works propose to…

Computation and Language · Computer Science 2023-10-18 Zheyu Zhang , Zhuorui Ye , Yikang Shen , Chuang Gan

Large Language Model (LLM) agents are increasingly applied to complex, multi-step tasks that require interaction with diverse external tools across various domains. However, current LLM agent tool planning methods typically rely on greedy,…

Artificial Intelligence · Computer Science 2026-03-16 Shuo Yang , Soyeon Caren Han , Yihao Ding , Shuhe Wang , Eduard Hoy

Behavior sequences, composed of executable steps, serve as the operational foundation for multi-constraint planning problems such as travel planning. In such tasks, each planning step is not only constrained locally but also influenced by…

Machine Learning · Computer Science 2026-04-24 Duanyang Yuan , Sihang Zhou , Yanning Hou , Xiaoshu Chen , Haoyuan Chen , Ke Liang , Jiyuan Liu , Chuan Ma , Xinwang Liu , Jian Huang

Safe autonomous exploration of unknown environments is an essential skill for mobile robots to effectively and adaptively perform environmental mapping for diverse critical tasks. Due to its simplicity, most existing exploration methods…

Robotics · Computer Science 2025-03-13 Aykut İşleyen , René van de Molengraft , Ömür Arslan

Large language model-based web agents have shown strong potential in automating web interactions through advanced reasoning and instruction following. While retrieval-based memory derived from historical trajectories enables these agents to…

Artificial Intelligence · Computer Science 2026-03-10 Yunteng Tan , Zhi Gao , Xinxiao Wu

Transcending human cognitive limitations represents a critical frontier in LLM training. Proprietary agentic systems like DeepResearch have demonstrated superhuman capabilities on extremely complex information-seeking benchmarks such as…

Automated Machine Learning (AutoML) approaches encompass traditional methods that optimize fixed pipelines for model selection and ensembling, as well as newer LLM-based frameworks that autonomously build pipelines. While LLM-based agents…

Artificial Intelligence · Computer Science 2024-10-23 Yizhou Chi , Yizhang Lin , Sirui Hong , Duyi Pan , Yaying Fei , Guanghao Mei , Bangbang Liu , Tianqi Pang , Jacky Kwok , Ceyao Zhang , Bang Liu , Chenglin Wu

Robust and persistent localisation is essential for ensuring the safe operation of autonomous vehicles. When operating in large and diverse urban driving environments, autonomous vehicles are frequently exposed to situations that violate…

Robotics · Computer Science 2021-03-29 Siqi Yi , Stewart Worrall , Eduardo Nebot

The integration of autonomous vehicles into urban and highway environments necessitates the development of robust and adaptable behavior planning systems. This study presents an innovative approach to address this challenge by utilizing a…

Robotics · Computer Science 2023-10-19 Qianfeng Wen , Zhongyi Gong , Lifeng Zhou , Zhongshun Zhang

Recent advances in large language models (LLMs) have enabled agentic systems for sequential decision-making. Such agents must perceive their environment, reason across multiple time steps, and take actions that optimize long-term…

Artificial Intelligence · Computer Science 2026-03-10 ELita Lobo , Xu Chen , Jingjing Meng , Nan Xi , Yang Jiao , Chirag Agarwal , Yair Zick , Yan Gao

Pre-trained on massive amounts of code and text data, large language models (LLMs) have demonstrated remarkable achievements in performing code generation tasks. With additional execution-based feedback, these models can act as agents with…

Computation and Language · Computer Science 2024-11-14 Jierui Li , Hung Le , Yingbo Zhou , Caiming Xiong , Silvio Savarese , Doyen Sahoo

Autonomous agents need to make decisions in a sequential manner, under partially observable environment, and in consideration of how other agents behave. In critical situations, such decisions need to be made in real time for example to…

Artificial Intelligence · Computer Science 2019-07-16 Takayuki Osogami , Toshihiro Takahashi

AI research agents accelerate ML research by automating hypothesis generation, experimentation, and empirical refinement. Existing agent strategies range from greedy hill-climbing to tree search and evolutionary optimization, yet which…

Large language models (LLMs) have been successfully adapted for interactive decision-making tasks like web navigation. While achieving decent performance, previous methods implicitly assume a forward-only execution mode for the model, where…

Computation and Language · Computer Science 2024-02-22 Kaixin Ma , Hongming Zhang , Hongwei Wang , Xiaoman Pan , Wenhao Yu , Dong Yu