fix selector
gitignore modified
add script
ignore the compile and run
modify the structure
test semi
test
minor change of LR
test feature selection
major modification of all classifiers
minor change in NB classifier
git ignore update
add timining to all classifiers
reivse feature selection
feature selection updated; CHI bug fixed
resolve conflict
Merge branch 'master' of https://github.com/Linda-sunshine/IR_Base
add stopwords
Merge branch 'master' of https://github.com/Linda-sunshine/IR_Base
bug found in classNo