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Reinforcement learning (RL) has been widely used in training large language models (LLMs) for preventing unexpected outputs, eg reducing harmfulness and errors. However, existing RL methods mostly adopt the instance-level reward, which is…

计算与语言 · 计算机科学 2024-06-18 Zhipeng Chen , Kun Zhou , Wayne Xin Zhao , Junchen Wan , Fuzheng Zhang , Di Zhang , Ji-Rong Wen

Reconstructing complex 3D interfaces from indirect measurements remains a grand challenge in scientific computing, particularly for ill-posed inverse problems like Electrical Impedance Tomography (EIT). Traditional shape optimization…

数值分析 · 数学 2026-04-23 Haibo Liu , Junqing Chen , Guang Lin

Recently, several studies have explored the use of neural network to solve different routing problems, which is an auspicious direction. These studies usually design an encoder-decoder based framework that uses encoder embeddings of nodes…

人工智能 · 计算机科学 2021-09-13 Zongtao Liu , Jing Xu , Jintao Su , Tao Xiao , Yang Yang

Adversarially robust models are locally smooth around each data sample so that small perturbations cannot drastically change model outputs. In modern systems, such smoothness is usually obtained via Adversarial Training, which explicitly…

机器学习 · 计算机科学 2024-10-01 Adrián Rodríguez-Muñoz , Tongzhou Wang , Antonio Torralba

Integer-arithmetic-only networks have been demonstrated effective to reduce computational cost and to ensure cross-platform consistency. However, previous works usually report a decline in the inference accuracy when converting well-trained…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Hengrui Zhao , Dong Liu , Houqiang Li

High-quality quadrilateral mesh generation is a fundamental challenge in computer graphics. Traditional optimization-based methods are often constrained by the topological quality of input meshes and suffer from severe efficiency…

图形学 · 计算机科学 2026-03-12 Yuguang Chen , Xinhai Liu , Xiangyu Zhu , Yiling Zhu , Zhuo Chen , Dongyu Zhang , Chunchao Guo

Understanding the asymptotic behavior of gradient-descent training of deep neural networks is essential for revealing inductive biases and improving network performance. We derive the infinite-time training limit of a mathematically…

机器学习 · 统计学 2022-02-08 Samuel Lippl , L. F. Abbott , SueYeon Chung

Recent developments within memory-augmented neural networks have solved sequential problems requiring long-term memory, which are intractable for traditional neural networks. However, current approaches still struggle to scale to large…

人工智能 · 计算机科学 2017-10-16 Jakob Merrild , Mikkel Angaju Rasmussen , Sebastian Risi

Convolutional neural networks are able to perform a hierarchical learning process starting with local features. However, a limited attention is paid to enhancing such elementary level features like edges. We propose and evaluate two…

计算机视觉与模式识别 · 计算机科学 2019-02-05 D. D. N. De Silva , S. Fernando , I. T. S. Piyatilake , A. V. S. Karunarathne

We present a method whereby the finite element method is used to train physics-informed neural networks that are suitable for surrogate modeling. The method is based on a custom convolutional operation called stencil convolution which…

计算物理 · 物理学 2024-12-11 Pranav Sunil , Ryan B. Sills

Even though neural networks are being increasingly deployed in safety-critical control applications, it remains difficult to enforce constraints on their output, meaning that it is hard to guarantee safety in such settings. While many…

机器学习 · 计算机科学 2025-08-27 Long Kiu Chung , Shreyas Kousik

This paper proposes a novel topological learning framework that integrates networks of different sizes and topology through persistent homology. Such challenging task is made possible through the introduction of a computationally efficient…

神经元与认知 · 定量生物学 2023-01-30 Tananun Songdechakraiwut , Moo K. Chung

The Reinforcement Learning field is strong on achievements and weak on reapplication; a computer playing GO at a super-human level is still terrible at Tic-Tac-Toe. This paper asks whether the method of training networks improves their…

神经与进化计算 · 计算机科学 2023-03-28 Brad Windsor , Brandon O'Shea , Mengxi Wu

Precise robotic manipulation skills are desirable in many industrial settings, reinforcement learning (RL) methods hold the promise of acquiring these skills autonomously. In this paper, we explicitly consider incorporating operational…

机器人学 · 计算机科学 2019-03-21 Jianlan Luo , Eugen Solowjow , Chengtao Wen , Juan Aparicio Ojea , Alice M. Agogino , Aviv Tamar , Pieter Abbeel

Recently, deep learning approaches with various network architectures have achieved significant performance improvement over existing iterative reconstruction methods in various imaging problems. However, it is still unclear why these deep…

机器学习 · 统计学 2018-01-26 Jong Chul Ye , Yoseob Han , Eunju Cha

Positional encodings are a common component of neural scene reconstruction methods, and provide a way to bias the learning of neural fields towards coarser or finer representations. Current neural surface reconstruction methods use a…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Thomas Walker , Octave Mariotti , Amir Vaxman , Hakan Bilen

The rapid development of Large Multimodal Models (LMMs) has led to remarkable progress in 2D visual understanding; however, extending these capabilities to 3D scene understanding remains a significant challenge. Existing approaches…

计算机视觉与模式识别 · 计算机科学 2025-09-05 Hongpei Zheng , Lintao Xiang , Qijun Yang , Qian Lin , Hujun Yin

Bounding volumes are an established concept in computer graphics and vision tasks but have seen little change since their early inception. In this work, we study the use of neural networks as bounding volumes. Our key observation is that…

图形学 · 计算机科学 2024-05-27 Stephanie Wenxin Liu , Michael Fischer , Paul D. Yoo , Tobias Ritschel

This paper investigates the ability of generative networks to convert their input noise distributions into other distributions. Firstly, we demonstrate a construction that allows ReLU networks to increase the dimensionality of their noise…

机器学习 · 计算机科学 2018-10-29 Bolton Bailey , Matus Telgarsky

Existing graph clustering networks heavily rely on a predefined yet fixed graph, which can lead to failures when the initial graph fails to accurately capture the data topology structure of the embedding space. In order to address this…

机器学习 · 计算机科学 2023-11-15 Zhihao Peng , Hui Liu , Yuheng Jia , Junhui Hou