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How can we design neural networks that allow for stable universal approximation of maps between topologically interesting manifolds? The answer is with a coordinate projection. Neural networks based on topological data analysis (TDA) use…

Machine Learning · Computer Science 2022-10-04 Michael Puthawala , Matti Lassas , Ivan Dokmanic , Pekka Pankka , Maarten de Hoop

A deep generative model is developed for representation and analysis of images, based on a hierarchical convolutional dictionary-learning framework. Stochastic {\em unpooling} is employed to link consecutive layers in the model, yielding…

Computer Vision and Pattern Recognition · Computer Science 2015-12-25 Yunchen Pu , Xin Yuan , Andrew Stevens , Chunyuan Li , Lawrence Carin

Instance-level image retrieval in fashion is a challenging issue owing to its increasing importance in real-scenario visual fashion search. Cross-domain fashion retrieval aims to match the unconstrained customer images as queries for…

Computer Vision and Pattern Recognition · Computer Science 2022-10-28 Chen Bao , Xudong Zhang , Jiazhou Chen , Yongwei Miao

Cross-domain generative models based on encoder-decoder AI architectures have attracted much attention in generating realistic images, where domain alignment is crucial for generation accuracy. Domain alignment methods usually deal directly…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Wei Zeng , Xuebin Chang , Jianghao Su , Xiang Gu , Jian Sun , Zongben Xu

Classical nonlinear dimensionality reduction (NLDR) techniques like t-SNE, Isomap, and LLE excel at creating low-dimensional embeddings for data visualization but fundamentally lack the ability to map these embeddings back to the original…

Machine Learning · Computer Science 2025-10-16 Riddhish Thakare , Kingdom Mutala Akugri

Recently, Hyperspectral Image (HSI) classification has attracted increasing attention in remote sensing. However, HSI data are inherently high-dimensional but low-rank, with discriminative information concentrated on a low-dimensional…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Boxiang Yang , Ning Chen , Xia Yue , Yichang Luo , Yingbo Fan , Haoyuan Zhang , Haoyu Ma , Jun Yue , Shanjun Mao

Manifold learning aims to discover and represent low-dimensional structures underlying high-dimensional data while preserving critical topological and geometric properties. Existing methods often fail to capture local details with global…

Machine Learning · Computer Science 2025-05-08 Ren Wang , Pengcheng Zhou

Manifold learning using deep neural networks been shown to be an effective tool for building sophisticated prior image models that can be applied to noise reduction in low-dose CT. We propose a new iterative CT reconstruction algorithm,…

Medical Physics · Physics 2020-10-20 Matthew Tivnan , J. Webster Stayman

There exists recent work in computer vision, named VAR, that proposes a new autoregressive paradigm for image generation. Diverging from the vanilla next-token prediction, VAR structurally reformulates the image generation into a coarse to…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Sucheng Ren , Yaodong Yu , Nataniel Ruiz , Feng Wang , Alan Yuille , Cihang Xie

Admittedly, Graph Convolution Network (GCN) has achieved excellent results on graph datasets such as social networks, citation networks, etc. However, softmax used as the decision layer in these frameworks is generally optimized with…

Machine Learning · Computer Science 2022-07-19 Xuelong Li , Ziheng Jiao , Hongyuan Zhang , Rui Zhang

Deep learning methods have played a more and more important role in hyperspectral image classification. However, the general deep learning methods mainly take advantage of the information of sample itself or the pairwise information between…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Zhiqiang Gong , Weidong Hu , Xiaoyong Du , Ping Zhong , Panhe Hu

We study the multiple manifold problem, a binary classification task modeled on applications in machine vision, in which a deep fully-connected neural network is trained to separate two low-dimensional submanifolds of the unit sphere. We…

Machine Learning · Statistics 2021-05-07 Sam Buchanan , Dar Gilboa , John Wright

Cross-domain Recommendation systems leverage multi-domain user interactions to improve performance, especially in sparse data or new user scenarios. However, CDR faces challenges such as effectively capturing user preferences and avoiding…

Information Retrieval · Computer Science 2024-10-10 Junxiong Tong , Mingjia Yin , Hao Wang , Qiushi Pan , Defu Lian , Enhong Chen

When deployed for risk-sensitive tasks, deep neural networks must be able to detect instances with labels from outside the distribution for which they were trained. In this paper we present a novel framework to benchmark the ability of…

Machine Learning · Computer Science 2023-02-24 Ido Galil , Mohammed Dabbah , Ran El-Yaniv

We propose TD-GEN, a graph generation framework based on tree decomposition, and introduce a reduced upper bound on the maximum number of decisions needed for graph generation. The framework includes a permutation invariant tree generation…

Machine Learning · Computer Science 2022-02-24 Hamed Shirzad , Hossein Hajimirsadeghi , Amir H. Abdi , Greg Mori

In this paper, we propose a novel mutual consistency network (MC-Net+) to effectively exploit the unlabeled data for semi-supervised medical image segmentation. The MC-Net+ model is motivated by the observation that deep models trained with…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Yicheng Wu , Zongyuan Ge , Donghao Zhang , Minfeng Xu , Lei Zhang , Yong Xia , Jianfei Cai

Phenomenological (P-type) bifurcations are qualitative changes in stochastic dynamical systems whereby the stationary probability density function (PDF) changes its topology. The current state of the art for detecting these bifurcations…

Algebraic Topology · Mathematics 2024-06-10 Sunia Tanweer , Firas A. Khasawneh

Existing methods for evaluating graph generative models primarily rely on Maximum Mean Discrepancy (MMD) metrics based on graph descriptors. While these metrics can rank generative models, they do not provide an absolute measure of…

Machine Learning · Computer Science 2026-03-18 Markus Krimmel , Philip Hartout , Karsten Borgwardt , Dexiong Chen

This paper introduces a machine for sampling approximate model-X knockoffs for arbitrary and unspecified data distributions using deep generative models. The main idea is to iteratively refine a knockoff sampling mechanism until a criterion…

Methodology · Statistics 2020-03-03 Yaniv Romano , Matteo Sesia , Emmanuel J. Candès

Recently, growth in our understanding of the computations performed in both biological and artificial neural networks has largely been driven by either low-level mechanistic studies or global normative approaches. However, concrete…

Neurons and Cognition · Quantitative Biology 2023-12-25 Michael Kuoch , Chi-Ning Chou , Nikhil Parthasarathy , Joel Dapello , James J. DiCarlo , Haim Sompolinsky , SueYeon Chung
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