Skill Analysis with Time Series Image Data
  We present a skill analysis with time series image data using data mining
methods, focused on table tennis. We do not use body model, but use only
hi-speed movies, from which time series data are obtained and analyzed using
data mining methods such as C4.5 and so on. We identify internal models for
technical skills as evaluation skillfulness for the forehand stroke of table
tennis, and discuss mono and meta-functional skills for improving skills.
