Automatic math word problem solving,which is to comprehend and solve the word problems that described in natural language automatically by computer,has always been one of the key points in the field of artificial intelligence.There are many problems in automatic problem solving,such as complex semantics,variable context and impalpable parameters.Focus on these problems,we proposed stratified sampling problem understanding of elementary mathematics based on dependency parsing.Combining the construction of sentence template library for elementary mathematics stratified sampling problems with the...