Multi-tier query term mapping
¡In order to
further eliminate the speech recognition errors, a multi-tier approach is
used to map basic components in CSS into known phrases by using a
combination of matching techniques.
¡To account for
possible errors in CSS components, we perform similarity, instead of exact,
matching at the three levels. Given the basic CSS component qi, and a phrase cj in
the dictionary, we compute:
Character level
Syllable level
Confusion syllable level
No
No
Yes
Yes
