Funding for this research was provided by:
Text and Data Mining valid from 2018-12-01
Received: 7 September 2018
Accepted: 20 November 2018
First Online: 1 December 2018
Change Date: 5 April 2019
Change Type: Correction
Change Details: In the original publication of the article, the acknowledgment missed one of the funding agencies. The correct acknowledgement should be.