Re: [R] RandomForest vs. bayes svm classification performance

2006-07-27 Thread Jameson C. Burt
With remiss, I haven't tried these R tools. However, I tried a dozen Naive Bayes-like programs, often used to filter email, where the serious problem with spam has resulted in many innovations. The most touted of the worldwide Naive Bayes programs seems to be CRM114 (not in R, I expect, since its

[R] RandomForest vs. bayes svm classification performance

2006-07-24 Thread Eleni Rapsomaniki
Hi This is a question regarding classification performance using different methods. So far I've tried NaiveBayes (klaR package), svm (e1071) package and randomForest (randomForest). What has puzzled me is that randomForest seems to perform far better (32% classification error) than svm and

Re: [R] RandomForest vs. bayes svm classification performance

2006-07-24 Thread roger bos
I can't add much to your question, being a complete novice at classification, but I have tried both randomForest and SVM and I get better results from randomForest than SVM (even after tuning). randomForest is also much, much faster. I just thought randomForest was a much better algorithm,