3. The computer-based method of claim 1 wherein organizing the speech corpuses into clusters comprises: (a) creating a first speech recognition engine based on a first one of the speech corpuses; (b) applying the first speech recognition engine to produce a recognized version of a second one of the speech corpuses; and (c) calculating a first edit distance between the recognized version of the second one of the speech corpuses and the transcription of the second one of the speech corpuses.
3. The computer-based method of claim 1 wherein organizing the speech corpuses into clusters comprises: (a) creating a first speech recognition engine based on a first one of the speech corpuses; (b) applying the first speech recognition engine to produce a recognized version of a second one of the speech corpuses; and (c) calculating a first edit distance between the recognized version of the second one of the speech corpuses and the transcription of the second one of the speech corpuses. 5. The computer-based method of claim 3 wherein organizing the speech corpuses into clusters further comprises: (d) creating a second speech recognition engine based on 30 the second one of the speech corpuses; (e) applying the second speech recognition engine to produce a recognized version of the first speech corpus; and (f) calculating a second edit distance between the recognized version of the first speech corpus and the transcription of the first one of the speech corpuses.