The publication may also be distributed here under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license. More information can be found on the University of Groningen website: https://www.rug.nl/library/open-access/self-archiving-pure/taverneamendment.1.1 Fundamental problems in computer-based offline text recognition 1.1 Fundamental problems in computer-based offline text recognition 11 This chapter is an adaptation of the article: M. Ameryan and L. Schomaker, 'How to limit label dissipation in neural-network validation: Exploring label-free early-stopping heuristics',