Learning (selected publications)


Statistical Learning Theory and Pattern Recognition
We are interested in a framework for automated learning / information extraction from a (usually) noisy data set. In particular we are interested in what one can learn and how the performance of a learning system may depend on the parameters of the learning problem.
Learning Models and Algorithms
Some common learning models are: neural networks; rbf networks; support vector machines; gaussian processes; hidden markov models; etc. We are interested in the application of such learning models to real data, and the development of new learning models, along with learning algorithms.
Reinforcement Learning
Such learning usually models situations where the data set has an inherent time component, and the feedback is a reward or punishment. We are interested in such learning applied to game playing and learning in non-stationary Markov Decision processes.
Unsupervised Learning and Probability Density Estimation
We are interested in the inference of structure from unstructured data, such as clusters and probability densities. We have investigated the use of neural networks to estimate multi-dimensional densities and generate random variates from arbitrary distributions.
Optimization and Combinatorial Optimization
Many problems in combinatorial optimization are hard to solve efficiently if one requires an exact solution. However, if one is allowed some error, then learning approximate solutions that are effective for the particular domain of interest are useful. We are interested in the development of such approaches using supervised learning and inverse algorithm engineering.

Selected Publications: