Text and Data Mining valid from 2018-12-01
Received: 21 September 2018
Accepted: 23 November 2018
First Online: 5 December 2018
Change Date: 26 February 2019
Change Type: Correction
Change Details: Following publication of the original article , the authors reported an error in the typesetting of their article. The first section of the main text was mistakenly included in the abstract.
Ethics approval and consent to participate
: No relationship to disclose.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.