Abstract: A method of validating an inferential model for operation on an inference data set is provided. The method includes extracting a first distribution of values of a first parameter from the inference data set, extracting a second distribution of values of the first parameter from a validating data set used to validate the inferential model, determining a first parameter distance between the extracted first distribution and the extracted second distribution, and validating the inferential model for operation on the inference data set based on satisfaction of a validation condition, the satisfaction of the validation condition being based on the determined first parameter distance.