better epsilon sampling
check for the aligned words
bugfix for logprob computation in dictionary
revert back to the original sampling method
use of original sampling + differentiate span-size
differentiate rules by span-lengths
added bow-based classification for ITG (but not tested)
re-implemented autoencoder with better beam search
buggix for propagating into children
indent lines
correctly count # of loss
simplified derivatin/output dumping
added adadelta which: 1. decay the squared sum 2. keep track of delta x
added adadelta
removed variables which are already comment-out
use of "embedding" properties, not "dimension"
upgraded to 0.3.1
simplified the sampled word checking