anchor.diff:  ##############################################################################
   # XGBoost-GPU
   ##############################################################################
  -RUN cd /usr/local/src && git clone --recursive https://github.com/dmlc/xgboost && \
  -    cd xgboost && mkdir build && cd build && cmake .. -DPLUGIN_UPDATER_GPU=ON && make -j4 && \
  -    cd ../python-package && python3 setup.py install
  +RUN pip install xgboost
   
   ##############################################################################
   # keras
   ##############################################################################
  -RUN cd /usr/local/src && pip --no-cache-dir install -I -U tensorflow-gpu
  +RUN cd /usr/local/src && pip --no-cache-dir install -I -U tensorflow-gpu==1.13.1
   RUN pip install keras
   
   ##############################################################################
   # other libraries
   ##############################################################################
  -RUN cd /usr/local/src && pip install catboost kaggle umap-learn tqdm nltk hdbscan spacy category_encoders gensim optuna cupy #TO DO: catboost-GPU is to be installed.
  -RUN python -m spacy download en
  +RUN cd /usr/local/src && pip install albumentations pyarrow fastparquet catboost kaggle umap-learn tqdm category_encoders optuna cupy opencv-python #TO DO: catboost-GPU is to be installed.
   RUN cd /usr/local/src && pip install torch torchvision
   RUN cd /usr/local/src && pip install git+https://github.com/hyperopt/hyperopt.git
  
positive.code:     apt-get install -y wget bzip2 ca-certificates && \
      rm -rf /var/lib/apt/lists/*
  
  RUN wget https://repo.continuum.io/archive/Anaconda3-5.2.0-Linux-x86_64.sh && \
      /bin/bash Anaconda3-5.2.0-Linux-x86_64.sh -b -p /opt/conda && \
      rm Anaconda3-5.2.0-Linux-x86_64.sh
  
  ENV PATH /opt/conda/bin:$PATH
  RUN pip install --upgrade pip
  
negative.code: git clone --recursive https://github.com/Microsoft/LightGBM && \
  cd LightGBM && mkdir build && cd build && \
  cmake -DUSE_GPU=1 -DOpenCL_LIBRARY=/usr/local/cuda/lib64/libOpenCL.so -DOpenCL_INCLUDE_DIR=/usr/local/cuda/include/ .. && \ 
   make OPENCL_HEADERS=/usr/local/cuda/targets/x86_64-linux/include LIBOPENCL=/usr/local/cuda/targets/x86_64-linux/lib
  
  ENV PATH /usr/local/src/lightgbm/LightGBM:${PATH}
  
  