I'm new in weka, I've to extract statuses from a social network and to analyse them using weka, how to build an arff file which contains those statuses? does weka contains the algorithms for stemming, stopwords and n-gramm or I 've to use other softwares in order to eliminate the unnecessary data before starting classification? and which the utility for weka for android and java, is there a difference in the use of this software ... have u any idea guys
You should not worry about have your data as arff file, since Weka supports other input formats. You can simply have your data as csv file and imported to Weka. You can export it from Weka as arff if you want.
There is a port for Weka to android that you can download here, I did use it in my project without a problem. You can train your model in the PC and export it, then use it in android see my answer here for example code.
Yes, Weka supports Stemmer algorithms