In general, those methods are derivatives of the
oversampling techniques, like for example Delta-Sigma A/D conversion [7] with main difference that stochastic approach excludes feedback loop, which is inevitable in Delta-Sigma A/D conversion.
Frequency domain
oversampling [7] can extend the error tolerance; however the tolerance is less than 5 Hz.
Hosseinzadeh and Eftekharia [25] preprocessed the original data using the fuzzy cluster and synthetic
oversampling technique (SMOTE) to obtain the training set on which Rotation Forest is learned.
The representative scheme is randomly
oversampling the minority class and undersampling the majority class [17, 18] or a combination of both schemes.
But random undersampling can potentially rmove certain important samples, and random
oversampling can lead to overfitting.
Interchangeable digital load cells equipped with individual 18 bit 4 times
oversampling AD converters are said to improve the performance by a factor of 20.
So in general, some degree of
oversampling is considered, which introduces redundancy in the coefficients, in order to "smooth" the biorthonormal window [gamma](k), for the sake of numerical stability.
Inverse-Probability
Oversampling. An intuitive method for correcting for sample selection bias is the plain replication of each observation in the sample according to its IP weight (i.e., in a stratified random sample, one replicates an observation of stratum h by the factor [w.sub.h]).
On Monday, Trump said "WikiLeaks also shows how John Podesta rigged the polls by
oversampling Democrats, a voter suppression technique." A "pants-on-fire" lie, says PolitiFact.
Trump has made 55 "Pants on Fire" comments, including today's comment on how Clinton campaign chairman John Podesta (http://www.politifact.com/personalities/donald-trump/statements/byruling/pants-fire/) rigged polls by
oversampling Democrats as a voter suppression technique.
In
oversampling mechanism suitable percentages must be provided for creation of synthetic data points in each class, to render magnitude of each class closer to magnitude of two largest classes; C7 and C17 (i.e.