Proximal-to-Distal Sequences of Attack and Release Movements of Expert Pianists during Pressed-Staccato Keystrokes.

The aims of this study were to ) evaluate proximal-to-distal sequencing (PDS) in pianists' attack and release movements during pressed- keystrokes, and ) investigate if trunk motion facilitates PDS of upper-limb movements. Nine expert pianists performed a series of loud pressed- keystrokes. Kinematic data was recorded with a 3 D motion capture system.

On recursive edit distance kernels with application to time series classification.

This paper proposes some extensions to the work on kernels dedicated to string or time series global alignment based on the aggregation of scores obtained by local alignments. The extensions that we propose allow us to construct, from classical recursive definition of elastic distances, recursive edit distance (or time-warp) kernels that are positive definite if some sufficient conditions are satisfied. The sufficient conditions we end up with are original and weaker than those proposed in earlier works, although a recursive regularizing term is required to get proof of the positive definiteness as a direct consequence of the Haussler's convolution theorem.