Regular Expression Madness

I just stumbled upon this great blog post about some uncommon uses of regular expressions. RapidMiner also makes a lot use of those beasts, especially for the definition of filters so I thought [...]

Extended Operations for Nominal Values

One of the next versions of RapidMiner (5.0.011 or the upcoming version 5.1) will provide a nice extension of the expression parser which is for example used for the operator "Generate [...]