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Authors
Author
Helen Purchase
Helen C. Purchase is a researcher in information visualization, graph drawing, and human–computer interaction who works as a senior lecturer in the School of Computing Science of the University of Glasgow.
Books
Evaluation in the Crowd. Crowdsourcing and Human-Centered Experiments
Helen Purchase, Daniel Archambault, Tobias Hoßfeld
Diagrammatic Representation and Inference
Tim Dwyer, Helen Purchase, Aidan Delaney