Coarse-DTW: Exploiting Sparsity in Gesture Time Series

Dynamic Time Warping (DTW) is considered as a robust measure to compare numerical time series when some time elasticity is required. Even though its initial formulation can be slow, extensive research has been conducted to speed up the calculations. However, those optimizations are not always available for multidimensional time series. In this paper, we focus on time series describing gesture movement, all of which are multidimensional. Our approch propose to speed up the pro

• Type: Journal
• Year: 2015
• Where: PKDD
• Authors: Marc Dupont, Pierre-François Marteau
• Keywords: Data Mining, PKDD 2015