I have posted a new video about pattern mining, explaining the PrefixSpan algorithm. It assumes that you know already what is sequential pattern mining. If you are not familiar with sequential pattern mining, you can first watch my video Introduction to sequential pattern mining.
Click here to watch the video: The PrefixSpan algorithm (30 min)
Philippe Fournier-Viger is a distinguished professor working in China and founder of the SPMF open source data mining software.