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Conventional clustering methods based on pairwise affinity usually suffer from the concentration effect while processing huge dimensional features yet low sample sizes data, resulting in inaccuracy to encode the sample proximity and…

机器学习 · 计算机科学 2023-02-06 Hongmin Cai , Fei Qi , Junyu Li , Yu Hu , Yue Zhang , Yiu-ming Cheung , Bin Hu

Sparse principal component analysis (PCA) is a well-established dimensionality reduction technique that is often used for unsupervised feature selection (UFS). However, determining the regularization parameters is rather challenging, and…

机器学习 · 计算机科学 2025-04-07 Long Chen , Xianchao Xiu

Fourier ptychographic microscopy (FPM) is a novel computational coherent imaging technique for high space-bandwidth product imaging. Mathematically, Fourier ptychographic (FP) reconstruction can be implemented as a phase retrieval…

计算机视觉与模式识别 · 计算机科学 2016-07-19 Liheng Bian , Jinli Suo , Jaebum Chung , Xiaoze Ou , Changhuei Yang , Feng Chen , Qionghai Dai

We present a new framework for the analysis and design of randomized algorithms for solving various types of linear systems, including consistent or inconsistent, full rank or rank-deficient. Our method is formulated with four randomized…

最优化与控制 · 数学 2022-08-25 Deren Han , Jiaxin Xie

Recent works have investigated the emergence of a new kind of random matrix behaviour in unitary dynamics following a quantum quench. Starting from a time-evolved state, an ensemble of pure states supported on a small subsystem can be…

量子物理 · 物理学 2022-06-15 Pieter W. Claeys , Austen Lamacraft

An attempt is made to describe random matrix ensembles with unitary invariance of measure (UE) in a unified way, using a combination of Tracy-Widom (TW) and Adler-Shiota-Van Moerbeke (ASvM) approaches to derivation of partial differential…

数学物理 · 物理学 2015-05-14 Igor Rumanov

It is a known fact that training recurrent neural networks for tasks that have long term dependencies is challenging. One of the main reasons is the vanishing or exploding gradient problem, which prevents gradient information from…

机器学习 · 计算机科学 2018-03-20 Jiong Zhang , Yibo Lin , Zhao Song , Inderjit S. Dhillon

The paper study counter-dependent pseudorandom generators; the latter are generators such that their state transition function (and output function) is being modified dynamically while working: For such a generator the recurrence sequence…

密码学与安全 · 计算机科学 2011-11-15 Vladimir Anashin

A t-design for quantum states is a finite set of quantum states with the property of simulating the Haar-measure on quantum states, w.r.t. any test that uses at most t copies of a state. We give efficient constructions for approximate…

量子物理 · 物理学 2007-05-23 Andris Ambainis , Joseph Emerson

This paper explores and analyzes two randomized designs for robust Principal Component Analysis (PCA) employing low-dimensional data sketching. In one design, a data sketch is constructed using random column sampling followed by low…

机器学习 · 统计学 2017-03-21 Mostafa Rahmani , George Atia

We present a structure-adaptive topology optimization framework for engineering photonic band gaps with TM-polarized sources based on computation of the photonic density of states with a uniform source substituting for the standard Dirac…

光学 · 物理学 2025-04-23 Aditya Bahulikar , Feng Wang , Mustafa Cenk Gursoy , Rodrick Kuate Defo

Prevalent lossy image compression schemes can be divided into: 1) explicit image compression (EIC), including traditional standards and neural end-to-end algorithms; 2) implicit image compression (IIC) based on implicit neural…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Qi Zheng , Haozhi Wang , Zihao Liu , Jiaming Liu , Peiye Liu , Zhijian Hao , Yanheng Lu , Dimin Niu , Jinjia Zhou , Minge Jing , Yibo Fan

Transforms using random matrices have been found to have many applications. We are concerned with the projection of a signal onto Gaussian-distributed random orthogonal bases. We also would like to easily invert the process through…

信号处理 · 电气工程与系统科学 2021-06-22 Ricardo L. de Queiroz

Unsupervised Domain Adaptation (UDA) transfers predictive models from a fully-labeled source domain to an unlabeled target domain. In some applications, however, it is expensive even to collect labels in the source domain, making most…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Xiangyu Yue , Zangwei Zheng , Shanghang Zhang , Yang Gao , Trevor Darrell , Kurt Keutzer , Alberto Sangiovanni Vincentelli

We consider the problem of learning a mixture of Random Utility Models (RUMs). Despite the success of RUMs in various domains and the versatility of mixture RUMs to capture the heterogeneity in preferences, there has been only limited…

机器学习 · 统计学 2020-04-01 Devavrat Shah , Dogyoon Song

An M-sequence generated by a primitive polynomial has many interesting and desirable properties. A pseudo-random array is the two-dimensional generalization of an M-sequence. There are non-primitive polynomials all of whose non-zero…

信息论 · 计算机科学 2025-08-20 Simon Blackburn , Yeow Meng Chee , Tuvi Etzion , Huimin Lao

Preserving spin symmetry in variational quantum algorithms is essential for producing physically meaningful electronic wavefunctions. Implementing spin-adapted transformations on quantum hardware, however, is challenging because the…

量子物理 · 物理学 2026-05-04 Paarth Jain , Artur F. Izmaylov , Erik R. Kjellgren

We show how to efficiently generate pseudo-random states suitable for quantum information processing via cluster-state quantum computation. By reformulating pseudo-random algorithms in the cluster-state picture, we identify a strategy for…

量子物理 · 物理学 2009-11-13 Winton G. Brown , Yaakov S. Weinstein , Lorenza Viola

Topological interface states (TISs) in phononic crystals (PnCs) are robust acoustic modes against external perturbations, which are of great significance in scientific and engineering communities. However, designing a pair of PnCs with…

应用物理 · 物理学 2025-02-18 Xue-Qian Zhang , Yi-Da Liu , Xiao-Shuang Li , Tian-Xue Ma , Yue-Sheng Wang , Zhuo Zhuang

Repeated-measure designs allow comparisons within a group as well as between groups, and are commonly referred to as split-plot designs. While originating in agricultural experiments, they are now widely used in medical research,…

统计计算 · 统计学 2025-12-22 Paavo Sattler , Nils Hichert