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In question-answering (QA) systems, Retrieval-Augmented Generation (RAG) has become pivotal in enhancing response accuracy and reducing hallucination issues. The architecture of RAG systems varies significantly, encompassing single-round…

计算与语言 · 计算机科学 2025-08-05 Yiqun Chen , Erhan Zhang , Lingyong Yan , Shuaiqiang Wang , Jizhou Huang , Dawei Yin , Jiaxin Mao

In agent control issues, the idea of combining reinforcement learning and planning has attracted much attention. Two methods focus on micro and macro action respectively. Their advantages would show together if there is a good cooperation…

人工智能 · 计算机科学 2020-03-20 Xuerun Chen

Painting is an artistic process of rendering visual content that achieves the high-level communication goals of an artist that may change dynamically throughout the creative process. In this paper, we present a Framework and Robotics…

机器人学 · 计算机科学 2022-10-04 Peter Schaldenbrand , James McCann , Jean Oh

Vision-Language-Action (VLA) models remain brittle in long-horizon, contact-rich manipulation because success-only imitation provides little supervision for execution drift, while failed rollouts are often discarded. We introduce RePO-VLA,…

To fulfill user instructions, autonomous web agents must contend with the inherent complexity and volatile nature of real-world websites. Conventional paradigms predominantly rely on Supervised Fine-Tuning (SFT) or Offline Reinforcement…

Despite previous image restoration (IR) methods have often concentrated on isolated degradations, recent research has increasingly focused on addressing composite degradations involving a complex combination of multiple isolated…

计算机视觉与模式识别 · 计算机科学 2024-12-05 Jin Cao , Deyu Meng , Xiangyong Cao

Computer-use agents operate over long horizons under noisy perception, multi-window contexts, evolving environment states. Existing approaches, from RL-based planners to trajectory retrieval, often drift from user intent and repeatedly…

人工智能 · 计算机科学 2026-03-02 Seoyoung Lee , Seobin Yoon , Seongbeen Lee , Yoojung Chun , Dayoung Park , Doyeon Kim , Joo Yong Sim

Image restoration is the task of recovering a clean image from a degraded version. In most cases, the degradation is spatially varying, and it requires the restoration network to both localize and restore the affected regions. In this…

图像与视频处理 · 电气工程与系统科学 2022-01-04 Maitreya Suin , Kuldeep Purohit , A. N. Rajagopalan

Transformer-based models have made remarkable progress in image restoration (IR) tasks. However, the quadratic complexity of self-attention in Transformer hinders its applicability to high-resolution images. Existing methods mitigate this…

计算机视觉与模式识别 · 计算机科学 2025-05-23 Yuang Ai , Huaibo Huang , Tao Wu , Qihang Fan , Ran He

Two of the main challenges of image restoration in real-world scenarios are the accurate characterization of an image prior and the precise modeling of the image degradation operator. Pre-trained diffusion models have been very successfully…

计算机视觉与模式识别 · 计算机科学 2025-03-28 Hamadi Chihaoui , Paolo Favaro

Active 3D reconstruction enables an agent to autonomously select viewpoints to efficiently obtain accurate and complete scene geometry, rather than passively reconstructing scenes from pre-collected images. However, existing active…

计算机视觉与模式识别 · 计算机科学 2025-12-08 Tianling Xu , Shengzhe Gan , Leslie Gu , Yuelei Li , Fangneng Zhan , Hanspeter Pfister

Learning compositional representation is a key aspect of object-centric learning as it enables flexible systematic generalization and supports complex visual reasoning. However, most of the existing approaches rely on auto-encoding…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Whie Jung , Jaehoon Yoo , Sungjin Ahn , Seunghoon Hong

End-to-end learning robotic manipulation with high data efficiency is one of the key challenges in robotics. The latest methods that utilize human demonstration data and unsupervised representation learning has proven to be a promising…

机器人学 · 计算机科学 2021-10-22 Jin Li , Xianyuan Zhan , Zixu Xiao , Guyue Zhou

Online meta-learning is emerging as an enabling technique for achieving edge intelligence in the IoT ecosystem. Nevertheless, to learn a good meta-model for within-task fast adaptation, a single agent alone has to learn over many tasks, and…

机器学习 · 计算机科学 2020-12-22 Sen Lin , Mehmet Dedeoglu , Junshan Zhang

This work concerns itself with the task of reconstructing all edges of an arbitrary 3D wire-frame model projected to an image plane. We explore a bottom-up part-wise procedure undertaken by an RL agent to segment and reconstruct these 2D…

机器学习 · 计算机科学 2025-03-24 Julian Ziegler , Patrick Frenzel , Mirco Fuchs

Robust optimization (RO) is a powerful paradigm for decision making under uncertainty. Existing algorithms for solving RO, including the reformulation approach and the cutting-plane method, do not scale well, hindering the application of RO…

最优化与控制 · 数学 2024-04-09 Kai Tu , Zhi Chen , Man-Chung Yue

Reinforcement learning agents have demonstrated remarkable achievements in simulated environments. Data efficiency poses an impediment to carrying this success over to real environments. The design of data-efficient agents calls for a…

机器学习 · 计算机科学 2023-05-09 Xiuyuan Lu , Benjamin Van Roy , Vikranth Dwaracherla , Morteza Ibrahimi , Ian Osband , Zheng Wen

Automating operations research (OR) with large language models (LLMs) remains limited by hand-crafted reasoning--execution workflows. Complex OR tasks require adaptive coordination among problem interpretation, mathematical formulation,…

人工智能 · 计算机科学 2026-04-21 Jiahao Huang , Peilan Xu , Xiaoya Nan , Wenjian Luo

We propose a method to efficiently learn diverse strategies in reinforcement learning for query reformulation in the tasks of document retrieval and question answering. In the proposed framework an agent consists of multiple specialized…

机器学习 · 计算机科学 2018-12-27 Rodrigo Nogueira , Jannis Bulian , Massimiliano Ciaramita

Existing multi-turn image editing paradigms are often confined to isolated single-step execution. Due to a lack of context-awareness and closed-loop feedback mechanisms, they are prone to error accumulation and semantic drift during…

图形学 · 计算机科学 2026-04-01 Fei Shen , Chengyu Xie , Lihong Wang , Zhanyi Zhang , Xin Jiang , Xiaoyu Du , Jinhui Tang