Results 61 to 70 of about 9,759,453 (201)

Data Augmentation and Spectral Structure Features for Limited Samples Hyperspectral Classification

open access: yesRemote Sensing, 2021
For both traditional classification and current popular deep learning methods, the limited sample classification problem is very challenging, and the lack of samples is an important factor affecting the classification performance.
Wenning Wang, Xuebin Liu, Xuanqin Mou
doaj   +1 more source

Fast Augmenting Paths by Random Sampling from Residual Graphs [PDF]

open access: yesSIAM Journal on Computing, 2015
Summary: Consider an \(n\)-vertex, \(m\)-edge, undirected graph with integral capacities and max-flow value \(v\). We give a new \(\tilde{O}(m + nv)\)-time maximum flow algorithm. After assigning certain special sampling probabilities to edges in \(\tilde{O}(m)\) time, our algorithm is very simple: repeatedly find an augmenting path in a random sample ...
Karger, David R., Levine, Matthew S.
openaire   +2 more sources

Sampling rare event energy landscapes via birth-death augmented dynamics

open access: yesPhysical Review E, 2023
17 pages, 5 ...
Benjamin Pampel   +3 more
openaire   +4 more sources

Dynamic Adaptive Iterative Generative Adversarial Network for Hyperspectral Image Classification With Class Imbalance

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Small-sample learning improves the problem of limited labeled samples in hyperspectral image (HSI) classification to a greater extent, but still suffers from the severe problem of class imbalance, where minority classes are poorly learned and classified,
Ke Li   +5 more
doaj   +1 more source

Cross-Fertilizing Strategies for Better EM Mountain Climbing and DA Field Exploration: A Graphical Guide Book

open access: yes, 2010
In recent years, a variety of extensions and refinements have been developed for data augmentation based model fitting routines. These developments aim to extend the application, improve the speed and/or simplify the implementation of data augmentation ...
Meng, Xiao-Li, van Dyk, David A.
core   +2 more sources

Side-Scan Sonar Image Augmentation Method Based on CC-WGAN

open access: yesApplied Sciences
The utilization of deep learning algorithms for side-scan sonar target detection is impeded by the restricted quantity and representativeness of side-scan sonar (SSS) samples.
Junhui Zhu   +4 more
doaj   +1 more source

Simulating dysarthric speech for training data augmentation in clinical speech applications

open access: yes, 2018
Training machine learning algorithms for speech applications requires large, labeled training data sets. This is problematic for clinical applications where obtaining such data is prohibitively expensive because of privacy concerns or lack of access.
Berisha, Visar   +3 more
core   +1 more source

TADA: phylogenetic augmentation of microbiome samples enhances phenotype classification [PDF]

open access: yesBioinformatics, 2019
AbstractMotivationLearning associations of traits with the microbial composition of a set of samples is a fundamental goal in microbiome studies. Recently, machine learning methods have been explored for this goal, with some promise. However, in comparison to other fields, microbiome data are high-dimensional and not abundant; leading to a high ...
Sayyari, Erfan   +2 more
openaire   +2 more sources

Data Augmentation with Variational Autoencoders and Manifold Sampling [PDF]

open access: yes, 2021
We propose a new efficient way to sample from a Variational Autoencoder in the challenging low sample size setting. This method reveals particularly well suited to perform data augmentation in such a low data regime and is validated across various standard and real-life data sets.
Chadebec, Clément   +1 more
openaire   +3 more sources

ECGAN: An Improved Conditional Generative Adversarial Network With Edge Detection to Augment Limited Training Data for the Classification of Remote Sensing Images With High Spatial Resolution

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The classification of remote sensing images with high spatial resolution requires considerable training samples, but the process of sample making is slow and laborious.
Baikai Sui   +3 more
doaj   +1 more source

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