Text and Data Mining valid from 2019-10-19
Received: 12 July 2019
Accepted: 22 September 2019
First Online: 19 October 2019
Change Date: 9 January 2020
Change Type: Correction
Change Details: The original version of this article, published on 26 November 2019, contained a mistake. An author’s name was misspelled.
Compliance with ethical standards
: The authors declare that they have no conflict of interest.