The panel's started #repsys2013 #recsys2013

The results of @jkonstan's study. Seems we need guidelines #repsys2013 #recsys2013

Now: @jkonstans on "Toward best practices" #repsys2013 #recsys2013

Stefan Langer from @docear_org on offline and online evaluation #recsys2013 #repsys2013

Stefan Langer on "Research Paper #RecSys Evaluation: A Quantitative Literature Survey" #repsys2013 #recsys2013

now @andrejkosir "How to improve the statistical power of the 10-fold cross validation scheme in #RecSys" #recsys2013

Getting ready for the first paper session. First up: @andrejkosir, @RecSysMare and @anteodic #repsys2013 #recsys2013

That's the keynote! Thank you @gamboviol #repsys2013 #recsys2013

Million song challenge. Winning entry only used interactions, no side data. #repsys2013 #recsys2013 @gamboviol

Bad recommendations #repsys2013 #recsys2013