@article{jang2015motionflow,
  title={Motionflow: Visual abstraction and aggregation of sequential patterns in human motion tracking data},
  author={Jang, Sujin and Elmqvist, Niklas and Ramani, Karthik},
  journal={IEEE transactions on visualization and computer graphics},
  volume={22},
  number={1},
  pages={21--30},
  year={2015},
  publisher={IEEE}
}