Results 11 to 20 of about 3,902,266 (287)

Enlarge the training set based on inter-class relationship for face recognition from one image per person. [PDF]

open access: yesPLoS ONE, 2013
In some large-scale face recognition task, such as driver license identification and law enforcement, the training set only contains one image per person. This situation is referred to as one sample problem.
Qin Li   +4 more
doaj   +1 more source

Fukunaga-Koontz transform for small sample size problems [PDF]

open access: yesIEE Irish Signals and Systems Conference 2005, 2005
In this paper, we propose the Fukunaga-Koontz Trans- form (FKT) as applied to Small-Sample Size (SSS) problems and formulate a feature scatter matrix based equivalent of the FKT. We establish the classical Linear Discriminant Analysis (LDA) analogy of the FKT and apply it to a SSS situation.
Miranda, Abhilash A., Whelan, Paul F.
openaire   +1 more source

Research on a small sample fault diagnosis method for a high-pressure common rail system

open access: yesAdvances in Mechanical Engineering, 2021
In the fault diagnosis of high-pressure common rail diesel engines, it is often necessary to face the problem of insufficient diagnostic training samples due to the high cost of obtaining fault samples or the difficulty of obtaining fault samples ...
Liangyu Li   +3 more
doaj   +1 more source

JoSDW: Combating Noisy Labels by Dynamic Weight

open access: yesFuture Internet, 2022
The real world is full of noisy labels that lead neural networks to perform poorly because deep neural networks (DNNs) are prone to overfitting label noise. Noise label training is a challenging problem relating to weakly supervised learning.
Yaojie Zhang   +3 more
doaj   +1 more source

A Novel Virtual Sample Generation Method to Overcome the Small Sample Size Problem in Computer Aided Medical Diagnosing

open access: yesAlgorithms, 2019
Deep neural networks are successful learning tools for building nonlinear models. However, a robust deep learning-based classification model needs a large dataset. Indeed, these models are often unstable when they use small datasets. To solve this issue,
Mohammad Wedyan   +2 more
doaj   +1 more source

Sketch face recognition based on light semantic Transformer network

open access: yesIET Computer Vision, 2023
Sketch face recognition has a wide range of applications in criminal investigation, but it remains a challenging task due to the small‐scale sample and the semantic deficiencies caused by cross‐modality differences.
Lin Cao   +4 more
doaj   +1 more source

An Exact and Near-Exact Distribution Approach to the Behrens–Fisher Problem

open access: yesMathematics, 2022
The Behrens–Fisher problem occurs when testing the equality of means of two normal distributions without the assumption that the two variances are equal.
Serim Hong   +2 more
doaj   +1 more source

Nash--Moser iteration and singular perturbations [PDF]

open access: yes, 2011
We present a simple and easy-to-use Nash--Moser iteration theorem tailored for singular perturbation problems admitting a formal asymptotic expansion or other family of approximate solutions depending on a parameter $\eps\to 0.$ The novel feature is to ...
Texier, Benjamin, Zumbrun, Kevin
core   +2 more sources

Techniques to produce and evaluate realistic multivariate synthetic data

open access: yesScientific Reports, 2023
Data modeling requires a sufficient sample size for reproducibility. A small sample size can inhibit model evaluation. A synthetic data generation technique addressing this small sample size problem is evaluated: from the space of arbitrarily distributed
John Heine   +4 more
doaj   +1 more source

The nonparametric Behrens-Fisher problem in small samples

open access: yes, 2022
While there appears to be a general consensus in the literature on the definition of the estimand and estimator associated with the Wilcoxon-Mann-Whitney test, it seems somewhat less clear as to how best to estimate the variance. In addition to the Wilcoxon-Mann-Whitney test, we review different proposals of variance estimators consistent under both ...
Nowak, Claus P.   +2 more
openaire   +2 more sources

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