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\bibitem{2652} Xavier Baro, Jordi Gonzalez, Junior Fabian, Miguel Angel Bautista, Marc Oliu, Hugo Jair Escalante, et al. (2015). ChaLearn Looking at People 2015 challenges: action spotting and cultural event recognition. In \textit{2015 IEEE Conference on Computer Vision and Pattern Recognition  Worshops (CVPRW)} (pp. 1--9).

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