Many of the fuzzy-rough feature selection measures have been ported to Weka – the standalone program (i.e. the executable jar) is here. (last update: April 19th, 2013).
If you want to process larger datasets, then you’ll need to change the Java heap size. An easy way of doing this is to put this file: run.bat in the same directory as Weka (above) and double-click it. You can edit this file to increase or decrease the heap size.
A worksheet that explains how to use Weka and the implemented fuzzy-rough algorithms can be here.
FuzzyRoughSubsetEval contains various measures and the option of selecting connectives, similarity measures etc. HillClimber is similar to Weka’s Greedy Stepwise search, but allows search to a degree alpha (for alpha-decision reducts) and search using non-monotonic measures (such as VQRS). AntSearch implements ACO-based search and includes the option of using any subset evaluator for the initial heuristic matrix and subset evaluation. PSOSearch implements search based on binary particle swarm optimization.
In the Classifiers section, there is now a range of fuzzy-rough classifiers including fuzzy-rough nearest neighbours and QuickRules.