You can read about the ECML/PAKDD discovery challenge 2006 which dealt with email spam detection here: http://www.ecmlpkdd2006.org/challenge.html. Your task is to download the dataset for task A from http://www.ecmlpkdd2006.org/data_task_a.zip.

Train a Naive Bayes classifier using the data found in task_a_labeled_train.tf file. Divide the data into a training (70%) and a test sample (30%) and test the performance of your classifier on the test sample.

Also test the performance of your classifier on the data found in task_a_u00_tune.tf and comment on your finding.

In your report, briefly describe how you approached the problem, what results you obtained, what practical difficulties you faced, and how you overcame these difficulties.