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NN-TSV, NCEP neural network training and validation system; brief description of NN background and training software
  • Published Date:
    2014
Filetype[PDF - 1.60 MB]


Details:
  • Personal Authors:
  • Corporate Authors:
    National Centers for Environmental Prediction (U.S.)
  • Series:
    Office note (National Centers for Environmental Prediction (U.S.)) ; 478
  • Description:
    This Note describes neural network (NN) training and validation system (TVS) or NN-TVS developed at NCEP (EMC). Section 1 of this Note is an introductory section. Section 2 presents a brief NN tutorial containing limited discussion of basic ideas of NN technique and NN features implemented in the NN-TVS system. Some of the NN features discussed in Section 2 have not yet been implemented in the NN-TVS system and are expected to be implemented in following versions of the system. Section 3 contains a description of the NN-TVS structure and functional relationships between blocks. It also describes scripts necessary for running the system on NCEP computers. Section 4 contains a description of FORTRAN module neural.f90 that can be used to run the trained NN in applications. Section 5 contains appendixes with information about the data files used in NN-TVS (Appendix 1); also the functions and subroutines constituting the NN-TVS system are listed in Appendix 2. The text of the FORTRAN module neural.f90 is presented in Appendix 3. Appendix 4 explains the evaluation statistics that are used in the NN-TVS evaluations of NN training results. [doi:10.7289/V5QR4V2Z (http://dx.doi.org/10.7289/V5QR4V2Z)]