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Although reinforcement learning methods can achieve impressive results in simulation, the real world presents two major challenges: generating samples is exceedingly expensive, and unexpected perturbations or unseen situations cause…

Machine Learning · Computer Science 2019-03-01 Anusha Nagabandi , Ignasi Clavera , Simin Liu , Ronald S. Fearing , Pieter Abbeel , Sergey Levine , Chelsea Finn

Recently, there has been a surge of vision-based GUI agents designed to automate everyday mobile and web tasks. These agents interpret raw GUI screenshots and autonomously decide where to click, scroll, or type, which bypasses handcrafted…

Machine Learning · Computer Science 2025-07-09 Yucheng Shi , Wenhao Yu , Zaitang Li , Yonglin Wang , Hongming Zhang , Ninghao Liu , Haitao Mi , Dong Yu

Vision-Language-Action (VLA) models trained via imitation learning suffer from significant performance degradation in data-scarce scenarios due to their reliance on large-scale demonstration datasets. Although reinforcement learning…

Robotics · Computer Science 2026-04-28 Junjin Xiao , Yandan Yang , Xinyuan Chang , Ronghan Chen , Feng Xiong , Mu Xu , Wei-Shi Zheng , Qing Zhang

The paradigm of Large Language Models (LLMs) has increasingly shifted toward agentic applications, where web browsing capabilities are fundamental for retrieving information from diverse online sources. However, existing open-source web…

Computation and Language · Computer Science 2025-09-29 Junteng Liu , Yunji Li , Chi Zhang , Jingyang Li , Aili Chen , Ke Ji , Weiyu Cheng , Zijia Wu , Chengyu Du , Qidi Xu , Jiayuan Song , Zhengmao Zhu , Wenhu Chen , Pengyu Zhao , Junxian He

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…

While Large Language Models (LLMs) excel at algorithmic code generation, they struggle with front-end development, where correctness is judged on rendered pixels and interaction. We present ReLook, an agentic, vision-grounded reinforcement…

Machine Learning · Computer Science 2025-10-14 Yuhang Li , Chenchen Zhang , Ruilin Lv , Ao Liu , Ken Deng , Yuanxing Zhang , Jiaheng Liu , Wiggin Zhou , Bo Zhou

Autonomous web agents powered by large language models (LLMs) have shown promise in completing complex browser tasks, yet they still struggle with long-horizon workflows. A key bottleneck is the grounding gap in existing skill formulations:…

Training Large Language Models (LLMs) from scratch requires immense computational resources, making it prohibitively expensive. Model scaling-up offers a promising solution by leveraging the parameters of smaller models to create larger…

Machine Learning · Computer Science 2025-02-20 Yifei Yang , Zouying Cao , Xinbei Ma , Yao Yao , Libo Qin , Zhi Chen , Hai Zhao

The growing prevalence of visually rich documents, such as webpages and scanned/digital-born documents (images, PDFs, etc.), has led to increased interest in automatic document understanding and information extraction across academia and…

Computation and Language · Computer Science 2024-02-29 Hongshen Xu , Lu Chen , Zihan Zhao , Da Ma , Ruisheng Cao , Zichen Zhu , Kai Yu

Intelligent embodied agents need to quickly adapt to new scenarios by integrating long histories of experience into decision-making. For instance, a robot in an unfamiliar house initially wouldn't know the locations of objects needed for…

Machine Learning · Computer Science 2024-10-04 Ahmad Elawady , Gunjan Chhablani , Ram Ramrakhya , Karmesh Yadav , Dhruv Batra , Zsolt Kira , Andrew Szot

While reinforcement learning (RL) has demonstrated remarkable success in enhancing large language models (LLMs), it has primarily focused on single-turn tasks such as solving math problems. Training effective web agents for multi-turn…

Computation and Language · Computer Science 2025-10-10 Zhepei Wei , Wenlin Yao , Yao Liu , Weizhi Zhang , Qin Lu , Liang Qiu , Changlong Yu , Puyang Xu , Chao Zhang , Bing Yin , Hyokun Yun , Lihong Li

Web-crawled image-text pairs are inherently noisy. Prior studies demonstrate that semantically aligning and enriching textual descriptions of these pairs can significantly enhance model training across various vision-language tasks,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Xianhang Li , Haoqin Tu , Mude Hui , Zeyu Wang , Bingchen Zhao , Junfei Xiao , Sucheng Ren , Jieru Mei , Qing Liu , Huangjie Zheng , Yuyin Zhou , Cihang Xie

Vision-language-action (VLA) models typically rely on large-scale real-world videos, whereas simulated data, despite being inexpensive and highly parallelizable to collect, often suffers from a substantial visual domain gap and limited…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Chenyu Hui , Xiaodi Huang , Siyu Xu , Yunke Wang , Shan You , Fei Wang , Tao Huang , Chang Xu

Large language models (LLMs) achieve strong performance when all task-relevant information is available upfront, as in static prediction and instruction-following problems. However, many real-world decision-making tasks are inherently…

Artificial Intelligence · Computer Science 2026-02-05 Xiaofeng Lin , Sirou Zhu , Yilei Chen , Mingyu Chen , Hejian Sang , Ioannis Paschalidis , Zhipeng Wang , Aldo Pacchiano , Xuezhou Zhang

Web scraping is a powerful technique that extracts data from websites, enabling automated data collection, enhancing data analysis capabilities, and minimizing manual data entry efforts. Existing methods, wrappers-based methods suffer from…

Computation and Language · Computer Science 2024-09-27 Wenhao Huang , Zhouhong Gu , Chenghao Peng , Zhixu Li , Jiaqing Liang , Yanghua Xiao , Liqian Wen , Zulong Chen

Text-rich visual understanding-the ability to process environments where dense textual content is integrated with visuals-is crucial for multimodal large language models (MLLMs) to interact effectively with structured environments. To…

Computer Vision and Pattern Recognition · Computer Science 2024-11-07 Junpeng Liu , Tianyue Ou , Yifan Song , Yuxiao Qu , Wai Lam , Chenyan Xiong , Wenhu Chen , Graham Neubig , Xiang Yue

Code reproduction is a cornerstone of scientific validity, yet it remains a formidable challenge in computer networking research due to the scarcity of open-source implementations and the complexity of heterogeneous system architectures.…

Networking and Internet Architecture · Computer Science 2026-02-17 Yining Jiang , Yunxin Xu , Wenyun Xu , Yufan Zhu , Tangtang He , Haiying Huang , Letian Zhu , Qingyu Song , Qiang Su , Lizhao You , Lu Tang , Wanjin Feng , Yuchao Zhang , Linghe Kong , Qiao Xiang , Jiwu Shu

Recent advancements in large language models (LLMs) have significantly improved the capabilities of web agents. However, effectively navigating complex and dynamic web environments still requires more advanced trajectory-level planning and…

Artificial Intelligence · Computer Science 2025-07-08 Yifei Gao , Junhong Ye , Jiaqi Wang , Jitao Sang

Retrieval-augmented generation (RAG) demonstrates remarkable performance across tasks in open-domain question-answering. However, traditional search engines may retrieve shallow content, limiting the ability of LLMs to handle complex,…

Computation and Language · Computer Science 2025-08-12 Jialong Wu , Wenbiao Yin , Yong Jiang , Zhenglin Wang , Zekun Xi , Runnan Fang , Linhai Zhang , Yulan He , Deyu Zhou , Pengjun Xie , Fei Huang

Recent advances in deep reinforcement learning for autonomous cyber defence have resulted in agents that can successfully defend simulated computer networks against cyber-attacks. However, many of these agents would need retraining to…

Machine Learning · Computer Science 2025-12-08 Tim Dudman , Martyn Bull