7. The method of claim 1 , wherein calculating the first score is based on at least one comparison between the target alphanumeric tokens and a portion of the alphanumeric tokens extracted from the candidate data record.
7. The method of claim 1 , wherein calculating the first score is based on at least one comparison between the target alphanumeric tokens and a portion of the alphanumeric tokens extracted from the candidate data record. 8. The method of claim 7 , further comprising: storing the alphanumeric tokens in a data structure that is partitioned based on at least one selected from a group consisting of a class, a type, and a length of the alphanumeric tokens, wherein the class comprises a key attribute class, a derivable attribute class, and a statistical attribute class, wherein the type comprises an alphabetic type and a numeric type, and wherein the at least one comparison is performed using the data structure based on the at least one selected from a group consisting of the class, the type, and the length of the alphanumeric tokens.