Those targets are ‘Price’ and ‘Carat’ of the diamond. The dataset also has a reasonable dimension i.e. (53940 ... the run time is tracked for both the models - the improved one (after the second grid ...

About the RapNet Diamond Index (RAPI™): The RAPI is the average asking price, in hundred dollars per carat, of the 10% lowest-priced round diamonds in each of the top 25 quality categories (D-H, ...