Fixed bug in training #424
Fixed bug in training #424


Former-commit-id: 8c9319f63b7b4db3b25b448746ec232059bcd2f7
clab/dynet,danielhers/dynet,danielhers/dynet,xunzhang/dynet,shuheik/dynet,xunzhang/dynet,danielhers/dynet,clab/cnn,shuheik/dynet,xunzhang/dynet,chunyang-wen/dynet,clab/dynet,danielhers/dynet,danielhers/dynet,clab/dynet,shuheik/dynet,clab/dynet,chunyang-wen/dynet,shuheik/dynet,clab/cnn,shuheik/dynet,danielhers/dynet,clab/dynet,danielhers/dynet,shuheik/dynet,xunzhang/dynet,clab/cnn,chunyang-wen/dynet,shuheik/dynet,clab/dynet,clab/dynet,chunyang-wen/dynet