5. The method of claim 3 , wherein the ranking comprises: modeling one or more speech features within each of the one or more regions; and assigning a performance measure to each of the one or more speech features subsequent to the modeling, wherein the performance measure for an associated one of the one or more speech features represents a strength with which the associated one of the one or more speech features accurately distinguishes the speaker of interest from the plurality of impostor speakers.
5. The method of claim 3 , wherein the ranking comprises: modeling one or more speech features within each of the one or more regions; and assigning a performance measure to each of the one or more speech features subsequent to the modeling, wherein the performance measure for an associated one of the one or more speech features represents a strength with which the associated one of the one or more speech features accurately distinguishes the speaker of interest from the plurality of impostor speakers. 6. The method of claim 5 , wherein at least one of the one or more speech features comprises a combination of two or more individual speech features.