@article{guo2014detecting,
  title={Detecting non-personal and spam users on geo-tagged Twitter network},
  author={Guo, Diansheng and Chen, Chao},
  year={2014}
}

@article{guo2014origin,
  title={Origin-destination flow data smoothing and mapping},
  author={Guo, Diansheng and Zhu, Xi},
  year={2014}
}

@article{gao2013early,
  title={Early detection of terrorism outbreaks using prospective space--time scan statistics},
  author={Gao, Peng and Guo, Diansheng and Liao, Ke and Webb, Jennifer J and Cutter, Susan L},
  year={2013}
}

@article{koylu2013smoothing,
  title={Smoothing locational measures in spatial interaction networks},
  author={Koylu, Caglar and Guo, Diansheng},
  year={2013}
}