Hi, did you balance your trainset? IMHO in the caret package are helpful functions for doing grid-search with different classifiers. http://cran.r-project.org/web/packages/caret/vignettes/caretTrain.pdf
HTH,Christian > Hi all, > > I am doing binary classification and want to improve the > classification results on imbalanced response data. > > Currently the performance is poor. Are there ways I could improve the > performance? > > I could either try different classification methodologies, or try > exploring the data more, and throwing away noisy data, and manipulate > the data more before sending into the classifiers. > > I was wondering are there systematic way of improving classification > performance? > > I know it's an art. But I am lack of experience and want to gain experience. > > How to do that? Please give me some pointers about hands-on tutorial > on classification. > > I am using R. > > Thank you! > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
