Illustrating the value of Open Access for text mining

There are many arguments in favour of Open Access to scholarly publication in particular allowing a better appropriation of research by practitioners and interested citizens. In 2018, Open Access represented about 28% of total published scientific articles.
While the cost of publication is widely studied, there are not many reports on the value that open access to scholarly publication can bring.
The aim of this study is the analysis of the extra value that access to fulltext brings to text mining tools.