This paper describes the Orbit Scheme optimizing compiler. Orbit was one of the first practical compilers for Scheme, whereas most existing Scheme compilers at the time were research prototypes. The paper walks us through the phases of the compiler, explaining design decisions along the way. The result of this research is a production-quality Scheme compiler. It generates code that is competiti...

In the rapidly evolving and growing environment of the internet, website owners aim to maximize interest for their website. In this article we propose a model, which combines the static structure of the internet with activity based data, to compute a website interest ranking. This ranking can be used to gain more insight into the flow of users over the internet, optimize the position of a websi...

We study the dependence of the exposure required to directly detect a WIMP directional recoil signal on the capabilities of a directional detector. Specifically we consider variations in the nuclear recoil energy threshold, the background rate, whether the detector measures the recoil momentum vector in 2 or 3 dimensions and whether or not the sense of the momentum vector can be determined. We ...

Association Rule Mining is one of the most well liked techniques of data mining strategies whose primary aim is to extract associations among sets of items or products in transactional databases. However, mining association rules typically ends up in a really large amount of found rules, leaving the database analyst with the task to go through all the association rules and find out the interest...