12. The computer readable medium of claim 11, further including instructions causing the computer to determine the phonemic transformation weight for each edit operation of the Levinstein distance based on phonological features of phonemes used for the first and second phonemic transcription.
11. A computer readable medium containing instructions executable on a computer for determining the likelihood of confusing first and second phonemic transcriptions, the instructions causing the computer to: calculate a Levinstein distance between the first and second phonemic transcriptions, wherein the Levinstein distance corresponds to edit operations required to transform the first phonemic transcription into the second phonemic transcription; obtain a phonemic transformation weight for each edit operation of the Levinstein distance; and sum the obtained phonemic transformation weights to generate a value indicating the likelihood of confusion between the first and second phonemic transcriptions, that correspond to spoken words.