抄録
This paper focuses on the recent trends of researches on diagrammatic reasoning, especially reseaches on the use of diagrams in thinking and problem solving. First, two important issues relevant to the research field were identified. Then, the recent studies in the field were classified into three types: the study of human diagrammatic reasoning, that of computational facilitation of human diagrammatic reasoning, and that of computational models of diagrammatic reasoning. All the types of studies were explained in terms of the indentified issues, with some typical cases.
