Journal of Artificial Intelligence Research is one of the oldest electronic journals on the Internet, not to mention that it offers free access to all its contents.
While some of the articles have titles like “The Strategy-Proofness Landscape of Merging”, P. Everaere, S. Konieczny and P. Marquis (2007), Volume 28, pages 49-105, they raise issues that sophisticated topic mappers will need to be able to discuss intelligently with data analysts.