Master Index Match Engine Matching Weight Formulation

The Master Index Match Engine determines the matching weight between two records by comparing the match string fields between the two records using the defined rules and taking into account the matching logic specified for each field. The match engine can use either matching (m) and unmatching (u) conditional probabilities or agreement and disagreement weight ranges to fine-tune the match process.

M-probabilities and u-probabilities use logarithmic functions to determine the maximum agreement and minimum disagreement weights for a field. When agreement and disagreement weights are used instead, the maximum agreement and minimum disagreement weights are specified directly as integers.

The Master Index Match Engine uses a proven algorithm to arrive at a match weight for each match string field. It offers a comprehensive array of comparison functions that can be configured and used on different types of data. Additional comparison functions can be defined and incorporated into the match engine. The master engine allows you to incorporate weight curves, validations, class dependencies, and even external data files into the configuration of a comparison function.