Learning Analytics in Competitive Programming Training Systems

In this paper we discuss the use of Analytics in oii-web, an online programming contest training system. We first provide an overview of the challenges in training for programming contests. Then we discuss the data collected in these years using oii-web, a platform devoted to the training of students for the Italian Olympiads in Informatics (Olimpiadi Italiane di Informatica - OII), and analyze them comparing two distinct groups of users in two distinct platforms built on oii-web, one devoted to students and one to their teachers. Most notably, the two groups are more similar than one would expect when dealing with programming contest training.