Given 1000 training documents from each group
Learn to classify new documents according to which newsgroup it came from
| comp.graphics | misc.forsale |
| comp.os.ms-windows.misc | rec.autos |
| comp.sys.ibm.pc.hardware | rec.motorcycles |
| comp.sys.mac.hardware | rec.sport.baseball |
| comp.windows.x | rec.sport.hockey |
| alt.atheism | sci.space |
| soc.religion.christian | sci.crypt |
| talk.religion.misc | sci.electronics |
| talk.politics.mideast | sci.med |
| talk.politics.misc | |
| talk.politics.guns |
Naive Bayes: 89% classification accuracy