@inproceedings{BellmannLausserKestleretal.2021, author = {Bellmann, Peter and Lausser, Ludwig and Kestler, Hans A. and Schwenker, Friedhelm}, title = {Introducing Bidirectional Ordinal Classifier Cascades Based on a Pain Intensity Recognition Scenario}, booktitle = {Pattern Recognition: ICPR International Workshops and Challenges: Virtual Event, January 10-15, 2021: Proceedings, Part VI}, editor = {Del Bimbo, Alberto and Cucchiara, Rita and Sclaroff, Stan and Farinella, Giovanni Maria and Mei, Tao and Bertini, Marco and Escalante, Hugo Jair and Vezzani, Roberto}, publisher = {Springer}, address = {Cham}, isbn = {978-3-030-68780-9}, doi = {https://doi.org/10.1007/978-3-030-68780-9_58}, pages = {773 -- 787}, year = {2021}, language = {en} }