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Globally optimal regions and boundaries (1999)
Presentation / Conference Contribution
Jermyn, I., & Ishikawa, H. (1999, September). Globally optimal regions and boundaries. Presented at Seventh IEEE International Conference on Computer Vision, Kerkyra, Greece

We propose a new form of energy functional for the segmentation of regions in images, and an efficient method for finding its global optima. The energy can have contributions from both the region and its boundary, thus combining the best features of... Read More about Globally optimal regions and boundaries.

The design and analysis of graphical passwords (1999)
Presentation / Conference Contribution
Jermyn, I., Mayer, A., Monrose, F., Reiter, M., & Rubin, A. (1999, August). The design and analysis of graphical passwords. Presented at 8th USENIX Security Symposium., Washington DC, USA

In this paper we propose and evaluate new graphical password schemes that exploit features of graphical input displays to achieve better security than text-based passwords. Graphical input devices enable the user to decouple the position of inputs fr... Read More about The design and analysis of graphical passwords.

A Homologically Persistent Skeleton is a fast and robust descriptor of interest points in 2D images (1999)
Book Chapter
Kurlin, V. (1999). A Homologically Persistent Skeleton is a fast and robust descriptor of interest points in 2D images. In G. Azzopardi, & N. Petkov (Eds.), Computer analysis of images and patterns : 16th International Conference, CAIP 2015, Valletta, Malta, September 2-4, 2015. Proceedings. Part I (606-617). Springer Verlag. https://doi.org/10.1007/978-3-319-23192-1_51

2D images often contain irregular salient features and interest points with non-integer coordinates. Our skeletonization problem for such a noisy sparse cloud is to summarize the topology of a given 2D cloud across all scales in the form of a graph,... Read More about A Homologically Persistent Skeleton is a fast and robust descriptor of interest points in 2D images.

The complex Bateman equation (1999)
Journal Article
Fairlie, D., & Leznov, A. (1999). The complex Bateman equation. Letters in Mathematical Physics, 49(3), 213-216. https://doi.org/10.1023/a%3A1007619823018

The general solution to the complex Bateman equation is constructed. It is given in implicit form in terms of a functional relationship for the unknown function. The known solution of the usual Bateman equation is recovered as a special case.

One-loop conformal anomalies from AdS/CFT in the Schrödinger representation (1999)
Journal Article
Mansfield, P., & Nolland, D. (1999). One-loop conformal anomalies from AdS/CFT in the Schrödinger representation. Journal of High Energy Physics, 1999(07), https://doi.org/10.1088/1126-6708/1999/07/028

We compute the conformal anomalies of boundary CFTs for scalar and fermionic fields propagating in AdS spacetime at one-loop. The coefficients are quantized, with values related to the mass-spectra for Kaluza-Klein compactifications of Supergravity o... Read More about One-loop conformal anomalies from AdS/CFT in the Schrödinger representation.

Dynamical zeta functions for typical extensions of full shifts (1999)
Journal Article
Ward, T. (1999). Dynamical zeta functions for typical extensions of full shifts. Finite Fields and Their Applications, 5(3), 232-239. https://doi.org/10.1006/ffta.1999.0250

We consider a family of isometric extensions of the full shift on p symbols (for p a prime) parametrised by a probability space. Using Heath-Brown's work on the Artin conjecture, it is shown that for all but two primes p the set of limit points of th... Read More about Dynamical zeta functions for typical extensions of full shifts.

Yang-Mills beta-function from a large-distance expansion of the Schrödinger functional (1999)
Journal Article
Mansfield, P., & Sampaio, M. (1999). Yang-Mills beta-function from a large-distance expansion of the Schrödinger functional. Nuclear Physics B, 545(1-3), 623-655. https://doi.org/10.1016/s0550-3213%2898%2900871-2

For slowly varying fields the Yang-Mills Schrödinger functional can be expanded in terms of local functionals. We show how analyticity in a complex scale parameter enables the Schrödinger functional for arbitrarily varying fields to be reconstructed... Read More about Yang-Mills beta-function from a large-distance expansion of the Schrödinger functional.

Integrable systems: twistors, loop groups, and Riemann surfaces. (1999)
Book
Hitchin, N., Segal, G., & Ward, R. (1999). Integrable systems: twistors, loop groups, and Riemann surfaces. Oxford University Press

This textbook is designed to give graduate students an understanding of integrable systems via the study of Riemann surfaces, loop groups, and twistors. The book has its origins in a series of lecture courses given by the authors, all of whom are int... Read More about Integrable systems: twistors, loop groups, and Riemann surfaces..