I am working on a project in which I have about 18 classes with about 4,000 total instances. I have 7 attributes, 1 being string data, the rest nominal. I am currently using StringToWordVector on the string attribute with Platt's SMO classifier, achieving good results. We are about to implement this, but I would like to try other classifiers in case there maybe one I could get better results from. Any suggestions?
Also, should I be using MultiClassClassifier with so many classes? If so, what settings should I try within that?
Any advice is appreciated!