Codice 42/2013 Titolo Analysis of Juggling Data: an Application of K-mean Alignment Data 2013-10-05 Autore/i Bernardi, M.; Sangalli, L.M.; Secchi, P.; Vantini, S. Link Download full text Pubblicato Mara Bernardi, Laura M. Sangalli, Piercesare Secchi, Simone Vantini (2014), Analysis of Juggling Data: an Application of K-mean Alignment, Electronic Journal of Statistics, Special Section on "Statistics of Time Warpings and Phase Variations", Vol. 8, No. 2, 1817-1824. Abstract We analyze the juggling data by means of the k-mean alignment algorithm using cycles as the experimental units of the analysis. Allowing for affine warping, we detect two clusters distinguishing between mainly-planar trajectories and trajectories tilted toward the body of the juggler in the lower part of the cycle. In particular we detect an anomalous presence of tilted trajectories among the record third cycles. We also find warping functions to be clustered according to records suggesting that each record is performed at a different pace and thus associated to a different typical cycle-duration.