Manually created dataset is presented at https://github.com/liuhuigmail/ParameterAbbreviation/tree/master/dataset Each file correspondes to a subject project. Columns contained in the dataset: (1)ClassNameInvoke //the class file where the method invocation appears (2)ClassNameOriginal // the class file where the invoked method is defined (3)FunctionName //the invoked method (4)FormalType //data type of the formal parameter (5)FormalName // formal parameter (6)ActualType // data type of the actual parameter (7)ActualName //actual parameter (8)Abbreviation //abbreviation (9)Expansion //full expansion