do not hardcode float32
do not hardcode float32

EdinburghNLP/nematus,rsennrich/nematus,cshanbo/nematus,EdinburghNLP/nematus,rsennrich/nematus,Proyag/nematus,cshanbo/nematus,EdinburghNLP/nematus,rsennrich/nematus,rsennrich/nematus,rsennrich/nematus,Proyag/nematus,EdinburghNLP/nematus,Proyag/nematus,cshanbo/nematus,Proyag/nematus,Proyag/nematus,Proyag/nematus,cshanbo/nematus,EdinburghNLP/nematus,cshanbo/nematus,rsennrich/nematus,cshanbo/nematus,EdinburghNLP/nematus