OSTSC (0.0.1)

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Over Sampling for Time Series Classification.

https://github.com/lweicdsor/OSTSC
http://cran.r-project.org/web/packages/OSTSC

Oversampling of imbalanced univariate time series classification data using integrated ESPO and ADASYN methods. Enhanced Structure Preserving Oversampling (ESPO) is used to generate a large percentage of the synthetic minority samples from univariate labeled time series under the modeling assumption that the predictors are Gaussian. ESPO estimates the covariance structure of the minority-class samples and applies a spectral filer to reduce noise. Adaptive Synthetic (ADASYN) sampling approach is a nearest neighbor interpolation approach which is subsequently applied to the ESPO samples. This code is ported from a 'MATLAB' implementation by Cao et al. and adapted for use with Recurrent Neural Networks implemented in 'TensorFlow'.

Maintainer: Lan Wei
Author(s): Matthew Dixon [ctb], Diego Klabjan [ctb], Lan Wei [aut, trl, cre]

License: GPL-3

Uses: doParallel, doSNOW, fields, foreach, MASS, xts, dummies, testthat, pROC, devtools, knitr, knitcitations, rlist, rmarkdown, keras

Released almost 2 years ago.


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