11. A method for replaying performance of a predictive engine, comprising: deploying an engine variant of the predictive engine based on an engine parameter set; receiving a plurality of queries to the engine variant from an end-user device, wherein each of the plurality of queries contains a timestamp; applying a first query segment filter to the plurality of queries to generate a first replay group of queries; for each query in the first replay group, generating utilizing the engine variant a corresponding predicted result, receiving a corresponding actual result, and computing a corresponding prediction score based on the corresponding predicted result and the corresponding actual result; grouping queries in the first replay group into one or more query segments of the first replay group according to the timestamps; and generating, as a replay of the performance of the engine variant, an accumulated prediction score over each of the one or more query segments of the first replay group by applying an accumulation function.
11. A method for replaying performance of a predictive engine, comprising: deploying an engine variant of the predictive engine based on an engine parameter set; receiving a plurality of queries to the engine variant from an end-user device, wherein each of the plurality of queries contains a timestamp; applying a first query segment filter to the plurality of queries to generate a first replay group of queries; for each query in the first replay group, generating utilizing the engine variant a corresponding predicted result, receiving a corresponding actual result, and computing a corresponding prediction score based on the corresponding predicted result and the corresponding actual result; grouping queries in the first replay group into one or more query segments of the first replay group according to the timestamps; and generating, as a replay of the performance of the engine variant, an accumulated prediction score over each of the one or more query segments of the first replay group by applying an accumulation function. 13. The method of claim 11 , wherein the accumulation function a weighted summation.