Run WEKA on Linux?

That simply means weka.classifiers.tress. J48. J48 class is not in classpath .

You can write java command with -classpath switch or set CLASSPATH (permanent) variable. Another way is to use -jar switch as pointed by @jberg.

This "weka.classifiers.trees. J48. J48" is a typo in the Weka documentation.

It's should be this: "weka.classifiers.trees. J48.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.