Difficulty Classification of Mountainbike Downhill Trails utilizing Deep Neural Networks

@inproceedings{Langer2019DifficultyCO,
  title={Difficulty Classification of Mountainbike Downhill Trails utilizing Deep Neural Networks},
  author={Stefan Langer and Robert M{\"u}ller and Kyrill Schmid and Claudia Linnhoff-Popien},
  booktitle={PKDD/ECML Workshops},
  year={2019}
}
The difficulty of mountainbike downhill trails is a subjective perception. However, sports-associations and mountainbike park operators attempt to group trails into different levels of difficulty with scales like the Singletrail-Skala (S0-S5) or colored scales (blue, red, black, ...) as proposed by The International Mountain Bicycling Association. Inconsistencies in difficulty grading occur due to the various scales, different people grading the trails, differences in topography, and more. We… 
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