@article{hadas_yovel_intrator_2011, 
  title={Using unsupervised incremental learning to cope with gradual concept drift}, 
  volume={23}, 
  DOI={10.1080/09540091.2011.575929}, 
  publisher={Informa UK Limited}, 
  author={Hadas and Yovel and Intrator}, 
  year={2011}
  }