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- Conrado Martínez, Lucia Moura, Daniel Panario, Brett Stevens
- SIAM J. Discrete Math.
- 2009

A covering array t-CAðn; k; gÞ is a k n array on a set of g symbols with the property that in each t n subarray, every t 1 column appears at least once. This paper improves many of the best known upper bounds on n for covering arrays, 2-CAðn; k; gÞ with gþ 1 k 2g, for g 1⁄4 3 12 by a construction which in many of these cases produces a 2-CAðn; k; gÞ with n… (More)

- Jordan Bell, Brett Stevens
- Discrete Mathematics
- 2009

- Aryel Beck, Brett Stevens, Kim A. Bard, Lola Cañamero
- TiiS
- 2012

Complex and natural social interaction between artificial agents (computer-generated or robotic) and humans necessitates the display of rich emotions in order to be believable, socially relevant, and accepted, and to generate the natural emotional responses that humans show in the context of social interaction, such as engagement or empathy. Whereas some… (More)

- Karen Meagher, Brett Stevens
- J. Comb. Theory, Ser. B
- 2005

- Mahdad Khatirinejad, Reza Naserasr, Mike Newman, Ben Seamone, Brett Stevens
- Discrete Mathematics & Theoretical Computer…
- 2012

- Robert F. Bailey, Brett Stevens
- Discrete Mathematics
- 2010

Using a generalisation of Hamiltonian cycles to uniform hypergraphs due to Katona and Kierstead, we define a new notion of a Hamiltonian decomposition of a uniform hypergraph. We then consider the problem of constructing such decompositions for complete uniform hypergraphs, and describe its relationship with other topics, such as design theory.

- Emily Bennett, Brett Stevens
- Ninth International Conference on Information…
- 2005

A projection augmented model (PA model) is a type of projection based haptic augmented reality display. It consists of a real physical model, onto which a computer image is projected to create a realistic looking object. Users can physically touch the surface of a PA model with their bare hands, which has clear experiential value for the types of… (More)

- Emily Bennett, Brett Stevens
- ISMAR
- 2004

This paper reports on a study that investigated the effect touching a Projection Augmented model, and interacting with it using a spatially-coincident device, has on the perception of size. It was found that touching increased the accuracy of size estimates, however interaction using a spatially-coincident device did not. 1. Research question

- Brett Stevens, Lucia Moura, Eric Mendelsohn
- Des. Codes Cryptography
- 1998