Posted tagged ‘sorting algorithm’

Optimizing the JAVA QuickSort implementation – a real-world study

23/05/2009

quicksort_report
I recently found a report I wrote on JAVAs quicksort algorithm as part of the INDA course last year. I read it through and it’s actually pretty interesting stuff if you’re interested in how QuickSort works and how we can optimize the algorithm for specific data sets. So I figured I’d release this for anyone who is interested! I’ll gladly accept comments on the report, so don’t be a stranger!

The abstract below:

In this report, we examine four implementations of the famous sorting algorithm known as QuickSort – the optimized one included in the Java API, and three barebone versions that we write ourselves. We then put these algorithms against each other to see which one is faster in sorting arbitrary and sorted data. We discover that whilst the Java implementation is the best in some cases, it can also be easily outperformed if you know a lot about your information.

You can download the report below (421KB PDF)
Mirror 1
Mirror 2