started neural network script


Former-commit-id: fdbe5e97cef1518a1fc655270911cdb65493f468
made nnet_investigation.R


Former-commit-id: 0faabbc7210dc57be33d76668cb8514430a9db57
wrote script to train parsimonious neural network.


Former-commit-id: 4e2a203045760c747b927c3a41f742fd55a57143
Wrote a visualization routine for parsimonious_nnet.R and update parsi... to create a kaggle submission file.


Former-commit-id: 689cb6b52369e88b4a296e914b4b085310b21e2f
wrote benchmarking script for pars_nn


Former-commit-id: c5762bb60b1e24377803aec8540fdd2b14118fbd
fixed a typo in pars_nn_benchmarking.


Former-commit-id: b7cc3c3628b80cd3ad1a8d7fd7d3fdfce2ea771f