I am a lecturer in the Department of Statistics at the University of Waikato, New Zealand.
I recently completed my PhD at the School of Computer Science, University of Birmingham, U.K. where I was supervised by Ata Kaban. My PhD research focused on mitigating issues associated with working with 'Big Data' by using random projections, and quantifying their impact on classification performance. I submitted my thesis on the 23rd January 2013 and my viva took place on 29th April 2013, when my examiners were John Shawe-Taylor and Peter Tino.
I spent a 4 month stint as a Research Fellow in the School of Computer Science at Birmingham before taking up my current post. Prior to that, in 2008-9 I was a Teaching Fellow in the school and taught masters and undergraduate modules on Machine Learning and Nature Inspired Design. I was also admissions tutor for MSc Natural Computation and MSc Intelligent Systems Engineering.
Before joining academia I had a varied career in industry, most recently as a project manager for a large UK stockbroker.
My Erdös number is 5.
Robert J. Durrant, Room G.3.30,
Department of Statistics,
University of Waikato,
Private Bag 3105,
e: bobd [at] waikato [dot] ac [dot] nz
t: +64 (0)7 838 4466 x8334
f: +64 (0)7 838 4155
I have a broad interest in learning and vision, both the organic and machine varieties.
I have a particular interest in computational theories of learning.
My recent research has been into dimensionality reduction. In particular, random projections of very high dimensional data sets into low dimensional spaces, and the effect of projection on classification performance.
Currently I am working on better understanding the effect of randomization in the context of classifier ensembles. In particular whether, and how, randomization improves generalization when the number of training examples is much smaller than the dimensionality of the data.
I am also interested in the Measure Concentration phenomenon and its application to machine learning and statistical pattern recognition theory and practice. Along similar lines I have some (still largely unexplored) interest in randomized algorithms.
R.J. Durrant and Ata Kaban. Random Projections as Regularizers: Learning a Linear Discriminant from Fewer Observations than Dimensions. (Submitted). pdf
A. Kaban, J. Bootkrajang, and R.J. Durrant. Towards Large Scale Continuous EDA: A Random Matrix Theory Perspective. (Submitted). pdf code
R.J. Durrant and Ata Kaban. A tight bound on the performance of Fisher's linear discriminant in randomly projected data spaces. Pattern Recognition Letters, 33(7), pp 911 – 919, 2012. pdf
R.J. Durrant and Ata Kaban. When Is 'Nearest Neighbor' Meaningful: A Converse Theorem and Implications. Journal of Complexity, 25(4), pp 385-397, August 2009. pdf
R.J. Durrant and A. Kaban. Random Projections as Regularizers: Learning a Linear Discriminant Ensemble from Fewer Observations than Dimensions. Proceedings 5th Asian Conference on Machine Learning (ACML 2013). JMLR W&CP 29 : pp 17-32, 2013.(Best paper award). pdf supp
A. Kaban and R.J. Durrant. Dimension-adaptive bounds on Compressive FLD Classification. Proceedings 24th International Conference on Algorithmic Learning Theory (ALT 2013 ). LNAI 8139, pp 294-308. Springer. pdf
R.J. Durrant and A. Kaban. Sharp Generalization Error Bounds for Randomly-projected Classifiers. Proceedings 30th International Conference on Machine Learning (ICML 2013). JMLR W&CP 28(3): pp 693-701, 2013. pdf
A. Kaban, J. Bootkrajang, and R.J. Durrant. Towards Large Scale Continuous EDA: A Random Matrix Theory Perspective. Proceedings Genetic and Evolutionary Computation Conference (GECCO 2013), pp 383-390. ACM. (Best paper award in the GDS/EDA track). pdf code
R.J. Durrant and A. Kaban. Error bounds for Kernel Fisher Linear Discriminant in Gaussian Hilbert Space. Proceedings 15th International Conference on Artificial Intelligence and Statistics (AIStats 2012). JMLR W&CP 22: pp 337-345, 2012. pdf
R.J. Durrant and A. Kaban. Compressed Fisher Linear Discriminant Analysis: Classification of Randomly Projected Data. Proceedings 16th ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD 2010), pp 1119-1128. ACM. pdf
R.J. Durrant and A. Kaban. A bound on the performance of LDA in randomly projected data spaces. Proceedings 20th International Conference on Pattern Recognition (ICPR 2010), pp 4044-4047. IEEE. (IBM Best Student Paper Award in the Pattern Recognition and Machine Learning track). pdf
A. Kaban and R.J. Durrant. Learning with Lq<1 vs L1-norm regularization with exponentially many irrelevant features. Proceedings 19th European Conference on Machine Learning (ECML08). LNAI 5211, pp. 580-596. Springer. pdf
A. Kaban and R.J. Durrant. A norm-concentration argument for non-convex regularization. ICML/UAI/COLT Workshop on Sparse Optimization and Variable Selection, 9 July, 2008, Helsinki, Finland. Slides (pdf)
R.J. Durrant. Learning in High Dimensions with Projected Linear Discriminants. pdf
R.J. Durrant and Ata Kaban. Flip Probabilities for Random Projections of θ-separated vectors. University of Birmingham, School of Computer Science Technical Report CSR-10-10. pdf
R.J. Durrant and Ata Kaban. A comparison of the moments of a quadratic form involving orthonormalised and normalised random projection matrices. University of Birmingham, School of Computer Science Technical Report CSR-11-04. pdf
Random Projections for Machine Learning and Data Mining: Theory and Applications. ECML-PKDD 2012, Bristol. Slides (pdf) Handouts (6 Slides per page) (pdf)
Sparsity in the context of learning from high dimensional data - with Ata Kaban. ICARN International Workshop 26 Sept 2008, Liverpool. pdf
Finite Sample Effects in Compressed Fisher's LDA - with Ata Kaban. 'Breaking News' poster presented at the 13th International Conference on Artificial Intelligence and Statistics (AIStats 2010) Poster (pdf) Proof (pdf)
Compressed Fisher Linear Discriminant Analysis: Classification of Randomly Projected Data. Departmental Seminar, School of Computer Science, University of Birmingham, 10 June 2010.
Random triangles and the curse of dimensionality. Postgraduate seminar, School of Computer Science, University of Birmingham, 2 March 2011; Workshop presentation at 6th-form Mathematics Conference, King Edward's Camp Hill School for Girls, Birmingham, 4 March 2011.
Why thousand-dimensional vector spaces are interesting. Mathematics Teachers' Conference, School of Mathematics, University of Birmingham, 7 July 2011.
Pattern Recognition Letters (Elsevier)
Pattern Analysis and Applications (Springer)
Information Sciences (Elsevier)
Transactions on Systems, Man and Cybernetics (IEEE)
Transactions on Pattern Analysis and Machine Intelligence (IEEE)
Transactions on Neural Networks and Learning Systems (IEEE)
1st International Workshop on High-dimensional Data Mining at IEEE ICDM 2013
Last Revised 28/11/13