Graph programs allow a visual description of programs on graphs and graph-like structures. The correctness of a graph program with respect to a pre- and a postcondition can be show...
Karl Azab, Annegret Habel, Karl-Heinz Pennemann, C...
This paper presents StepTree, an information visualization tool designed for depicting hierarchies, such as directory structures. StepTree is similar to the hierarchy-visualization...
Variable binding is a prevalent feature of the syntax and proof theory of many logical systems. In this paper, we define a programming language that provides intrinsic support fo...
—A whiteboard that automatically identifies drawn strokes, interprets them in context, and augments drawn images with computational results, such as solutions to mathematical eq...
In this paper we reexamine the place and role of stable model semantics in logic programming and contrast it with a least Herbrand model approach to Horn programs. We demonstrate ...