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Detecting critical transitions in complex, noisy time-series data is a fundamental challenge across science and engineering. Such transitions may be anticipated by the emergence of a low-dimensional order parameter, whose signature is often…

机器学习 · 计算机科学 2025-12-16 Wenqi Fang , Ye Li

Visualization methods based on the nearest neighbor graph, such as t-SNE or UMAP, are widely used for visualizing high-dimensional data. Yet, these approaches only produce meaningful results if the nearest neighbors themselves are…

机器学习 · 计算机科学 2024-06-06 Jan Niklas Böhm , Philipp Berens , Dmitry Kobak

We present an efficient neural 3D scene representation for novel-view synthesis (NVS) in large-scale, dynamic urban areas. Existing works are not well suited for applications like mixed-reality or closed-loop simulation due to their limited…

计算机视觉与模式识别 · 计算机科学 2024-11-26 Tobias Fischer , Jonas Kulhanek , Samuel Rota Bulò , Lorenzo Porzi , Marc Pollefeys , Peter Kontschieder

Recently, seismic facies classification based on convolutional neural networks (CNN) has garnered significant research interest. However, existing CNN-based supervised learning approaches necessitate massive labeled data. Labeling is…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Kewen Li , Wenlong Liu , Yimin Dou , Zhifeng Xu , Hongjie Duan , Ruilin Jing

Contrastive learning has emerged as a powerful technique in audio-visual representation learning, leveraging the natural co-occurrence of audio and visual modalities in webscale video datasets. However, conventional contrastive audio-visual…

声音 · 计算机科学 2025-03-18 Ioannis Tsiamas , Santiago Pascual , Chunghsin Yeh , Joan Serrà

We first show that the commonly used dimensionality reduction (DR) methods such as t-SNE and LargeVis poorly capture the global structure of the data in the low dimensional embedding. We show this via a number of tests for the DR methods…

机器学习 · 计算机科学 2018-03-05 Ehsan Amid , Manfred K. Warmuth

The goal of this work is to localize sound sources in visual scenes with a self-supervised approach. Contrastive learning in the context of sound source localization leverages the natural correspondence between audio and visual signals…

计算机视觉与模式识别 · 计算机科学 2022-11-04 Sooyoung Park , Arda Senocak , Joon Son Chung

Noise Contrastive Estimation (NCE) is a powerful parameter estimation method for log-linear models, which avoids calculation of the partition function or its derivatives at each training step, a computationally demanding step in many cases.…

计算与语言 · 计算机科学 2018-09-07 Zhuang Ma , Michael Collins

The goal of dimension reduction tools is to construct a low-dimensional representation of high-dimensional data. These tools are employed for a variety of reasons such as noise reduction, visualization, and to lower computational costs.…

应用统计 · 统计学 2024-09-20 Justin Lin , Julia Fukuyama

A ubiquitous feature of data of our era is their extra-large sizes and dimensions. Analyzing such high-dimensional data poses significant challenges, since the feature dimension is often much larger than the sample size. This thesis…

统计理论 · 数学 2025-09-11 Kai Yang

Neural view synthesis (NVS) is one of the most successful techniques for synthesizing free viewpoint videos, capable of achieving high fidelity from only a sparse set of captured images. This success has led to many variants of the…

计算机视觉与模式识别 · 计算机科学 2023-10-25 Hanxue Liang , Tianhao Wu , Param Hanji , Francesco Banterle , Hongyun Gao , Rafal Mantiuk , Cengiz Oztireli

Viewpoint estimation from 2D rendered images is helpful in understanding how users select viewpoints for volume visualization and guiding users to select better viewpoints based on previous visualizations. In this paper, we propose a…

图形学 · 计算机科学 2019-02-04 Neng Shi , Yubo Tao

A super-resolution (SR) method for the reconstruction of Navier-Stokes (NS) flows from noisy observations is presented. In the SR method, first the observation data is averaged over a coarse grid to reduce the noise at the expense of losing…

流体动力学 · 物理学 2024-11-11 Kyongmin Yeo , Małgorzata J. Zimoń , Mykhaylo Zayats , Sergiy Zhuk

Self-supervised image denoising techniques emerged as convenient methods that allow training denoising models without requiring ground-truth noise-free data. Existing methods usually optimize loss metrics that are calculated from multiple…

Data visualization is the process by which data of any size or dimensionality is processed to produce an understandable set of data in a lower dimensionality, allowing it to be manipulated and understood more easily by people. The goal of…

图形学 · 计算机科学 2021-07-06 Alexander Kiefer , Md. Khaledur Rahman

We present a new computational approach to approximating a large, noisy data table by a low-rank matrix with sparse singular vectors. The approximation is obtained from thresholded subspace iterations that produce the singular vectors…

统计方法学 · 统计学 2011-12-13 Dan Yang , Zongming Ma , Andreas Buja

Convolutional neural networks (CNNs) define the current state-of-the-art for image recognition. With their emerging popularity, especially for critical applications like medical image analysis or self-driving cars, confirmability is…

计算机视觉与模式识别 · 计算机科学 2018-01-08 Keyang Zhou , Bernhard Kainz

Data visualisation helps understanding data represented by multiple variables, also called features, stored in a large matrix where individuals are stored in lines and variable values in columns. These data structures are frequently called…

人机交互 · 计算机科学 2022-07-25 Haseeb Younis , Paul Trust , Rosane Minghim

Automatic speech recognition can potentially benefit from the lip motion patterns, complementing acoustic speech to improve the overall recognition performance, particularly in noise. In this paper we propose an audio-visual fusion strategy…

音频与语音处理 · 电气工程与系统科学 2019-05-02 George Sterpu , Christian Saam , Naomi Harte

Self-supervised real-world image denoising remains a fundamental challenge, arising from the antagonistic trade-off between decorrelating spatially structured noise and preserving high-frequency details. Existing blind-spot network (BSN)…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Yiwen Shan , Haiyu Zhao , Peng Hu , Xi Peng , Yuanbiao Gou