@InProceedings{MasahikoItoh:2015,
  author = {Masahiko Itoh, Daisaku Yokoyama, Masashi Toyoda, and Masaru Kitsuregawa},
  title = {Visual Interface for Exploring Caution Spots from Vehicle Recorder Big Data},
  booktitle = {IEEE BigData 2015},
  year      = {2015},
  pages     = {776-784},
}