Diagram interpretation and e-learning systems

Smith, Neil; Thomas, Pete and Waugh, Kevin (2010). Diagram interpretation and e-learning systems. In: Goel, Ashok K.; Jamnik, Mateja and Narayanan, N. Hari eds. Diagrammatic Representation and Inference: 6th International Conference, Diagrams 2010, Portland, OR, USA, August 9-11, 2010. Proceedings. Lecture Notes in Computer Science, (6170). Berlin: Springer, pp. 331–333.

URL: http://www.springer.com/computer/hci/book/978-3-64...


We describe a system capable of grading free-form diagrammatic answers. Our system matches meaningful parts of a diagram with equivalents in a model solution. This is complicated by errors, omissions, and superfluous items in the student answer. The result of matcing is used to calculate the grade and generate appropritae feedback; it performs at least as well as a human marker on a variety of diagram types. We describe tools that allow the easy creation of questions, marking schemees, and diagram editors suitalbe for embedding in a VLE quiz engine.

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