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. […]
Read More…Category: Research
Plots with shaded surrounding ribbon in R ggplot
We all like R – a free statistical package with loads of supporting libraries, one of which is ggplot. I’m fairly new to ggplot but it does seem to produce *very* pretty visualisations. It has built-in the means to add a ribbon to a line plot – say if you want to show standard deviations […]
Read More…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 […]
Read More…Condor and EnergyPlus on a small cluster
I thought a good way to open the blog would be a post on some work I’ve done as part of my research at Loughborough. Hopefully this will be of some use to others running building energy simulations (and likely other CPU intensive jobs); I at least will be using it as a record of […]
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