9. The method of claim 1 , wherein the first not fully specified data record does include a second numeric data value for the second variable in the plurality of variables and does not include a third numeric data value for a third variable in the plurality of variables, and wherein the obtaining comprises obtaining, using the generated representation and an optimization technique, the first numeric data value and the third numeric data value based on the second numeric data value.
9. The method of claim 1 , wherein the first not fully specified data record does include a second numeric data value for the second variable in the plurality of variables and does not include a third numeric data value for a third variable in the plurality of variables, and wherein the obtaining comprises obtaining, using the generated representation and an optimization technique, the first numeric data value and the third numeric data value based on the second numeric data value. 18. The method of claim 9 , wherein the optimization technique comprises a gradient search technique.