Abstract: A method includes obtaining first data records associated with a first schema. Each respective data record of the first data records may include corresponding values of a plurality of fields. The method also includes obtaining a mapping representing a transformation of a field of the plurality of fields from the first schema to a training schema, and selecting, based on the mapping and for each respective data record of the first data records, a corresponding value of the field from the first data records. The method further includes generating second data records by transforming, based on the mapping and for each respective data record of the first data records, the corresponding value of the field from the first schema to the training schema. The method additionally includes training a machine learning model based on the second data records.