Diagrammatic representation and inference 11th International Conference, Diagrams 2020, Tallinn, Estonia, August 24-28, 2020 : proceedings - Pietarinen, Ahti-Veikko 1971-; Chapman, Peter; Bosveld- de Smet, Leonie 1956-; Giardino, Valeria; Corter, James; Linker, Sven (Lecture notes in artificial intelligence, 2020)