TranSparse and TensorFlow

Implement the model of TranSparse described in Ji et al., 2016

Training:

# compile c++ op:
$ TF_INC=$(python -c 'import tensorflow as tf; print(tf.sysconfig.get_include())')
$ g++ -std=c++11 -shared norm_prjct_op.cc norm_prjct_kernel.cc -o \
       norm_prjct_op.so -fPIC -I $TF_INC -O2 -D_GLIBCXX_USE_CXX11_ABI=0
$ python3 transparse.py # Train
$ python evaluate.py    # Evaluate

Test and debug:

$ python3 transparse.py --test --debug