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Manifold learning is a central task in modern statistics and data science. Many datasets (cells, documents, images, molecules) can be represented as point clouds embedded in a high dimensional ambient space, however the degrees of freedom…

机器学习 · 统计学 2025-02-18 Stephen Zhang , Gilles Mordant , Tetsuya Matsumoto , Geoffrey Schiebinger

A common belief in high-dimensional data analysis is that data are concentrated on a low-dimensional manifold. This motivates simultaneous dimension reduction and regression on manifolds. We provide an algorithm for learning gradients on…

统计理论 · 数学 2010-02-24 Sayan Mukherjee , Qiang Wu , Ding-Xuan Zhou

Moving object segmentation based on LiDAR is a crucial and challenging task for autonomous driving and mobile robotics. Most approaches explore spatio-temporal information from LiDAR sequences to predict moving objects in the current frame.…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Zhiheng Li , Yubo Cui , Jiexi Zhong , Zheng Fang

Manifold Learning is a class of algorithms seeking a low-dimensional non-linear representation of high-dimensional data. Thus manifold learning algorithms are, at least in theory, most applicable to high-dimensional data and sample sizes to…

机器学习 · 计算机科学 2016-03-10 James McQueen , Marina Meila , Jacob VanderPlas , Zhongyue Zhang

To solve the problem of poor performance of deep neural network models due to insufficient data, a simple yet effective interpolation-based data augmentation method is proposed: MSMix (Manifold Swap Mixup). This method feeds two different…

机器学习 · 计算机科学 2023-06-01 Mao Ye , Haitao Wang , Zheqian Chen

We propose Manifold Free-Form Flows (M-FFF), a simple new generative model for data on manifolds. The existing approaches to learning a distribution on arbitrary manifolds are expensive at inference time, since sampling requires solving a…

机器学习 · 计算机科学 2024-11-26 Peter Sorrenson , Felix Draxler , Armand Rousselot , Sander Hummerich , Ullrich Köthe

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…

机器学习 · 计算机科学 2025-05-08 Ren Wang , Pengcheng Zhou

Low-rank metric learning aims to learn better discrimination of data subject to low-rank constraints. It keeps the intrinsic low-rank structure of datasets and reduces the time cost and memory usage in metric learning. However, it is still…

机器学习 · 计算机科学 2019-09-16 Han Liu , Zhizhong Han , Yu-Shen Liu , Ming Gu

The manifold hypothesis (real world data concentrates near low-dimensional manifolds) is suggested as the principle behind the effectiveness of machine learning algorithms in very high dimensional problems that are common in domains such as…

机器学习 · 计算机科学 2022-07-15 Aditya Chetan , Nipun Kwatra

Automatic image annotation is one of the most challenging problems in machine vision areas. The goal of this task is to predict number of keywords automatically for images captured in real data. Many methods are based on visual features in…

计算机视觉与模式识别 · 计算机科学 2014-12-11 Neda Pourali

This paper explores a fully unsupervised deep learning approach for computing distance-preserving maps that generate low-dimensional embeddings for a certain class of manifolds. We use the Siamese configuration to train a neural network to…

计算机视觉与模式识别 · 计算机科学 2018-11-14 Gautam Pai , Ronen Talmon , Alex Bronstein , Ron Kimmel

Despite rapid advancements in lifelong learning (LLL) research, a large body of research mainly focuses on improving the performance in the existing \textit{static} continual learning (CL) setups. These methods lack the ability to succeed…

机器学习 · 计算机科学 2023-01-30 Soumya Banerjee , Vinay Kumar Verma , Vinay P. Namboodiri

Representation learning is typically applied to only one mode of a data matrix, either its rows or columns. Yet in many applications, there is an underlying geometry to both the rows and the columns. We propose utilizing this coupled…

机器学习 · 统计学 2018-10-17 Gal Mishne , Eric C. Chi , Ronald R. Coifman

Rapid technological advances are inherently linked to the increased amount of data, a substantial portion of which can be interpreted as data stream, capable of exhibiting the phenomenon of concept drift and having a high imbalance ratio.…

机器学习 · 计算机科学 2024-04-25 Paweł Zyblewski

Multimodal deep learning methods capture synergistic features from multiple modalities and have the potential to improve accuracy for stress detection compared to unimodal methods. However, this accuracy gain typically comes from high…

计算机视觉与模式识别 · 计算机科学 2024-03-14 Morteza Bodaghi , Majid Hosseini , Raju Gottumukkala

Visual data such as videos are often sampled from complex manifold. We propose leveraging the manifold structure to constrain the deep action feature learning, thereby minimizing the intra-class variations in the feature space and…

计算机视觉与模式识别 · 计算机科学 2017-05-10 Ce Li , Chen Chen , Baochang Zhang , Qixiang Ye , Jungong Han , Rongrong Ji

A random dot product graph (RDPG) is a generative model for networks in which vertices correspond to positions in a latent Euclidean space and edge probabilities are determined by the dot products of the latent positions. We consider RDPGs…

机器学习 · 统计学 2021-12-28 Michael W. Trosset , Mingyue Gao , Minh Tang , Carey E. Priebe

Real-world data with underlying structure, such as pictures of faces, are hypothesized to lie on a low-dimensional manifold. This manifold hypothesis has motivated state-of-the-art generative algorithms that learn low-dimensional data…

Diffusion maps are a nonlinear manifold learning technique based on harmonic analysis of a diffusion process over the data. Out-of-sample extensions with computational complexity $\mathcal{O}(N)$, where $N$ is the number of points…

机器学习 · 统计学 2019-06-04 Andrew W. Long , Andrew L. Ferguson

We propose a learning-based approach for estimating the spectrum of a multisinusoidal signal from a finite number of samples. A neural-network is trained to approximate the spectra of such signals on simulated data. The proposed methodology…

机器学习 · 计算机科学 2019-06-03 Gautier Izacard , Brett Bernstein , Carlos Fernandez-Granda