citation: @INPROCEEDINGS{dataset_ar_brad,
      author={Elnagar, Ashraf and Einea, Omar},
      booktitle={2016 IEEE/ACS 13th International Conference of Computer Systems and Applications (AICCSA)}, 
      title={{BRAD} 1.0: Book reviews in Arabic dataset}, 
      year={2016},
      volume={},
      number={},
      pages={1-8},
      doi={10.1109/AICCSA.2016.7945800}
  }
  