#ai × 3,251
# × 517
education × 160
online × 137
probability × 113
udacity × 97
bayes × 84
particlefilters × 70
#coursera × 47
#pgm × 42
#udacity × 42
thrun × 34
learning × 32
stanford × 29
#daa × 28
#edx × 18
hmm × 16
moocs × 16
mooc × 13
#ct-ml × 11
#mooc × 11
self-driving-car × 10
java × 8
edx × 7
peer-assessment × 4
dataset × 3
neural-network × 3
opensource × 3
platform × 3
#python × 1
class2go × 1
kaggle × 1