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@yorkerlin

Your notebook needs some serious cleanups. Please do those before starting any coding.

 * Fix all data paths ( I though it was only one, but there are multiple hard coded ones)
 * Add the datasets you use in the new uci folder, see #2608 
 * Only *one* python function definition per cell
 * Please document your functions in the standard Python style, see me changes in here
 * Please only ever commit notebooks that do run on our buildbot, it gets messy otherwise