Abstract: Initiatives as open data, make available more and more data to everybody, thus fostering new techniques for enabling non-expert users to analyse data in an easier manner. Data mining techniques allow acquiring knowledge from available data but it requires a high level of expertise in both preparing data sets and selecting the right mining algorithm. This paper is a first step towards a user-friendly data mining approach in which a knowledge base is created with the aim of guiding non-expert users in obtaining reliable knowledge from data sources.

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