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The introduction of a metric onto the space of parameters in models in Statistical Mechanics and beyond gives an alternative perspective on their phase structure. In such a geometrization, the scalar curvature, R, plays a central role. A…

统计力学 · 物理学 2009-11-10 W. Janke , D. A. Johnston , R. Kenna

The structure of real-world networks is usually difficult to characterize owing to the variation of topological scales, the nondyadic complex interactions, and the fluctuations in the network. We aim to address these problems by introducing…

社会与信息网络 · 计算机科学 2019-09-25 Quoc Hoan Tran , Van Tuan Vo , Yoshihiko Hasegawa

We consider the problem of learning a graph from a finite set of noisy graph signal observations, the goal of which is to find a smooth representation of the graph signal. Such a problem is motivated by the desire to infer relational…

机器学习 · 计算机科学 2023-02-08 Xiaolu Wang , Yuen-Man Pun , Anthony Man-Cho So

For the problem of 3D object recognition, researchers using deep learning methods have developed several very different input representations, including "multi-view" snapshots taken from discrete viewpoints around an object, as well as…

计算机视觉与模式识别 · 计算机科学 2020-02-11 Tengyu Ma , Joel Michelson , James Ainooson , Deepayan Sanyal , Xiaohan Wang , Maithilee Kunda

Signal processing and Information theory are two disparate fields used for characterizing signals for various scientific and engineering applications. Spectral/Fourier analysis, a technique employed in signal processing, helps estimation of…

信息论 · 计算机科学 2023-09-22 Aditi Kathpalia , Nithin Nagaraj

The interference of fluorescence signals and noise remains a significant challenge in Raman spectrum analysis, often obscuring subtle spectral features that are critical for accurate analysis. Inspired by variational methods similar to…

图像与视频处理 · 电气工程与系统科学 2025-12-08 Nelson H. T. Lemes , José Claudinei Ferreira , Higor V. M. Ferreira

The reliability of machine learning systems critically assumes that the associations between features and labels remain similar between training and test distributions. However, unmeasured variables, such as confounders, break this…

机器学习 · 计算机科学 2020-08-17 Megha Srivastava , Tatsunori Hashimoto , Percy Liang

Regular variation provides a convenient theoretical framework to study large events. In the multivariate setting, the dependence structure of the positive extremes is characterized by a measure - the spectral measure - defined on the…

机器学习 · 统计学 2021-02-24 Meyer Nicolas , Olivier Wintenberger

By activating blocked users and altering successive interference cancellation (SIC) sequences, reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogonal multiple access (NOMA) systems. The downlink RIS-aided…

信息论 · 计算机科学 2020-08-20 Chao Zhang , Wenqiang Yi , Yuanwei Liu

This paper investigates the security enhancement of an intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) network, where a distributed IRS enabled NOMA transmission framework is proposed to serve users…

信息论 · 计算机科学 2021-04-16 Zheng Zhang , Jian Chen , Qingqing Wu , Yuanwei Liu , Lu Lv , Xunqi Su

Deep learning frameworks have become powerful tools for approaching scientific problems such as turbulent flow, which has wide-ranging applications. In practice, however, existing scientific machine learning approaches have difficulty…

机器学习 · 计算机科学 2024-07-25 Jakin Ng , Yongji Wang , Ching-Yao Lai

In this work, we present a novel non-rigid shape matching framework based on multi-resolution functional maps with spectral attention. Existing functional map learning methods all rely on the critical choice of the spectral resolution…

计算机视觉与模式识别 · 计算机科学 2022-10-13 Lei Li , Nicolas Donati , Maks Ovsjanikov

Scatter plots are popular for displaying 2D data, but in practice, many data sets have more than two dimensions. For the analysis of such multivariate data, it is often necessary to switch between scatter plots of different dimension pairs,…

人机交互 · 计算机科学 2024-01-10 Nils Rodrigues , Frederik L. Dennig , Vincent Brandt , Daniel A. Keim , Daniel Weiskopf

A grand challenge in representation learning is to learn the different explanatory factors of variation behind the high dimen- sional data. Encoder models are often determined to optimize performance on training data when the real objective…

机器学习 · 统计学 2018-02-16 Matías Vera , Pablo Piantanida , Leonardo Rey Vega

The INTEGRAL/SPI, X-gamma-ray spectrometer (20 keV - 8 MeV) is an instrument for which recovering source intensity variations is not straightforward and can constitute a difficulty for data analysis. In most cases, determining the source…

天体物理仪器与方法 · 物理学 2015-06-16 L. Bouchet , P. -R Amestoy , A. Buttari , F. -H. Rouet , M. Chauvin

This work investigates the use of resonance statistics for resonance evaluation to inform spin group assignment and an alternative fitting objective function beyond the commonly used chi-squared statistic. Resonance statistics -informed…

The Self-Organizing Map (SOM) is a brain-inspired neural model that is very promising for unsupervised learning, especially in embedded applications. However, it is unable to learn efficient prototypes when dealing with complex datasets. We…

神经与进化计算 · 计算机科学 2020-09-07 Lyes Khacef , Laurent Rodriguez , Benoit Miramond

This paper discusses sample allocation problem (SAP) in frequency-domain Compressive Sampling (CS) of time-domain signals. An analysis that is relied on two fundamental CS principles; the Uniform Random Sampling (URS) and the Uncertainty…

信息论 · 计算机科学 2014-12-22 Andriyan B. Suksmono

In interactive instance segmentation, users give feedback to iteratively refine segmentation masks. The user-provided clicks are transformed into guidance maps which provide the network with necessary cues on the whereabouts of the object…

计算机视觉与模式识别 · 计算机科学 2018-12-10 Soumajit Majumder , Angela Yao

We propose a novel learning-based approach for robust 3D shape matching. Our method builds upon deep functional maps and can be trained in a fully unsupervised manner. Previous deep functional map methods mainly focus on predicting…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Dongliang Cao , Paul Roetzer , Florian Bernard