The million song dataset challenge.

@inproceedings{mcfee-2012-million, author = {Brian McFee and Thierry Bertin-Mahieux and Daniel P. W. Ellis and Gert R. G. Lanckriet}, editor = {Alain Mille and Fabien Gandon and Jacques Misselis and Michael Rabinovich and Steffen Staab}, title = {{The million song dataset challenge}}, booktitle = {{Proceedings of the 21st World Wide Web Conference, WWW 2012, Lyon, France, April 16-20, 2012 (Companion Volume)}}, pages = {909--916}, publisher = {ACM}, year = {2012}, url = {https://doi.org/10.1145/2187980.2188222}, doi = {https://doi.org/10.1145/2187980.2188222} }