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Much recent attention, both experimental and theoretical, has been focussed on classication algorithms which produce voted combinations of classi ers. Recent theoretical work has shown that the impressive generalization performance of algorithms like AdaBoost can be attributed to the classi er having large margins on the training data. We present an… (More)

Much recent attention, both experimental and theoretical, has been focussed on classii-cation algorithms which produce voted combinations of classiiers. Recent theoretical work has shown that the impressive generalization performance of algorithms like AdaBoost can be attributed to the classiier having large margins on the training data. We present abstract… (More)

- Phillip Boyle, Marcus R. Frean
- NIPS
- 2004

Gaussian processes are usually parameterised in terms of their covariance functions. However, this makes it difficult to deal with multiple outputs, because ensuring that the covariance matrix is positive definite is problematic. An alternative formulation is to treat Gaussian processes as white noise sources convolved with smoothing kernels, and to… (More)

- Gareth Baxter, Marcus R. Frean, +5 authors Ewan D. Tempero
- OOPSLA
- 2006

Large amounts of Java software have been written since the language's escape into unsuspecting software ecology more than ten years ago. Surprisingly little is known about the structure of Java programs in the wild: about the way methods are grouped into classes and then into packages, the way packages relate to each other, or the way inheritance and… (More)

- Marcus R. Frean
- Neural Computation
- 1992

The thermal perceptron is a simple extension to Rosenblatt’s perceptron learning rule for training individual linear threshold units. It finds stable weights for nonseparable problems as well as separable ones. Experiments indicate that if a good initial setting for a temperature parameter, To, has been found, then the thermal perceptron outperforms the… (More)

- Alex Potanin, James Noble, Marcus R. Frean, Robert Biddle
- Commun. ACM
- 2005

Though conventional OO design suggests programs should be built from many small objects, like Lego bricks, they are instead built from objects that are scale-free, like fractals, and unlike Lego bricks.

- Marcus R. Frean
- 1990

- Marcus R. Frean, Edward R. Abraham
- Proceedings. Biological sciences
- 2001

In the children's game of rock-scissors-paper, players each choose one of three strategies. A rock beats a pair of scissors, scissors beat a sheet of paper and paper beats a rock, so the strategies form a competitive cycle. Although cycles in competitive ability appear to be reasonably rare among terrestrial plants, they are common among marine sessile… (More)

- Marcus Gallagher, Marcus R. Frean
- Evolutionary Computation
- 2005

Evolutionary algorithms perform optimization using a population of sample solution points. An interesting development has been to view population-based optimization as the process of evolving an explicit, probabilistic model of the search space. This paper investigates a formal basis for continuous, population-based optimization in terms of a stochastic… (More)

Object-oriented programs, when executed, produce a complex web of objects that can be thought of as a graph with objects as nodes and references as edges. In recent years interest has grown in the geometry of networks (or graphs), particularly those of human origin, many of which show a rather striking property: their structure is scale-free. In the case of… (More)