Category: Research

Reusing PCA for plotting in R

I’m currently working on a project where I’m using principal component analysis to scale lots of variables into 2 dimensions for visualisation. Something like this:   This figure¬†shows¬†a number of features (numbers) relating to a few thousand bin packing problem instances. Each point is one instance, coloured by the data set it originally came from. […]

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CULA – work in progress

A big chunk of my research work – including my phd – has been development of the Markov fitness model (MFM). In short, this is a probabilistic model of the fitness function in an evolutionary algorithm. Originally this was used in an estimation of distribution algorithm for generating new solutions. More recently, I’ve looked at […]

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