2. The system of claim 1 , wherein the matching function value is based upon a third product of a title weight and a title match scoring function value, the third product added to a fourth product of an author weight and an author match scoring function value.
2. The system of claim 1 , wherein the matching function value is based upon a third product of a title weight and a title match scoring function value, the third product added to a fourth product of an author weight and an author match scoring function value. 4. The system of claim 2 , wherein the author match scoring function value is based upon a first count of a quantity of unigrams in a probe media item author parameter of the unstructured metadata that match unigrams in a reference media item author parameter of the structured metadata, the first count added to a fifth product of a bigram weight and a second count of a quantity bigrams in the probe media item author parameter that match bigrams in the reference media item author parameter.