I really need help. I am working on a project: I have a cron job that collects RSS feeds from news sites (Reuters and Associated Press). I need to classify these news data based on their content (just like 20news example). The categories are business, entertainment, health, politics, scitech, and sports. I use half of the data for training and the other half for testing. Attached, please find the training, testing and model files in compressed form. As you will see when I test the model I get extremely good results for some topics (business, sports, and entertainment). I get really bad results (almost %0) for other topics (health, scitech, and politics). What's wrong?
What is more interesting is that I get real bad results with "health" topic when I test the classifier against the training data which is the dataset in creating the model, itself. This is strange. Please help. Thank you, Sam
