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Oct 24, 2013:
Tanks: Multiple Reader, Single Writer Actors
And another paper that’s going to be presented by Joeri is our work on Tanks, a variation of communicating event loops (à la E or AmbientTalk). Tanks add synchronous and consistent read access to the event loop model.
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Oct 24, 2013:
Cloud PARTE: Elastic Complex Event Processing based on Mobile Actors
On Sunday, I am going to present work on a distributed Rete engine I have been involved in over the last year. The presentation will be at the AGERE workshop co-located with SPLASH. Note that most of the work has been done by Janwillem and Thierry over the last two years. They did a great job in first implementing and parallelizing our Rete engine and now distributing it to scale up for “big data” scenarios.
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Mar 10, 2013:
Replacing plyr's ddply with data.table to improve an R script's performance
Since quite a while, I am using R as a scripting language to generate graphs to the benchmarking results of various experiments. Since we have a new 64 core machine at the lab, I happen to run into performance issues with scripts that process the benchmark results, because the number of measurements increased significantly and the plyr library I use was designed with ease of use in mind, instead of performance. Concretely, I was experiencing script runtimes of up to 25min for a data set with roughly 50.000 measurements.
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Jan 21, 2013:
Supporting Concurrency Abstractions in High-level Language Virtual Machines
Last Friday, I defended my PhD dissertation. Finally, after 4 years and a bit, I am done. Finally. I am very grateful to all the people supporting me along the way and of course to my colleagues for their help.
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Jan 9, 2013:
Parallel Gesture Recognition with Soft Real-Time Guarantees
It has been a while since SPLASH’12, but I got finally around to put up a copy of our paper at the AGERE’12 workshop. It is based on Thierry’s master thesis and presents his work on parallelizing a Rete engine for gesture recognition. Lode and I were his advisors and are happily working with him on what we promised in the future work section.
I am working at the
School of Computing
at the University of Kent. My work focuses on programming language
implementation techniques, complex concurrent systems, and tooling.