Applying the Generalized Dombi Operator Family to the Speech Recognition Task

Gabor Gosztolya, Jozsef Dombi, Andras Kocsor
2009 Journal of Computing and Information Technology  
In the automatic speech recognition (ASR) problem, the task of constructing one word-or sentence-level probability from the available phoneme-level probabilities is a very important one. Here we try to improve the performance of ASR systems by applying operators taken from fuzzy logic which have the sort of properties this problem requires. In this paper we do this by using the Generalized Dombi Operator, which, by its two adjustable parameters and incorporating other well-known fuzzy
more » ... seems quite suitable. To properly adjust these parameters, we used the public optimization package called Snobfit. The results show that our approach is surprisingly successful: the overall error rate was significantly reduced.
doi:10.2498/cit.1001284 fatcat:t26rolf7grh4rgjz3gpskltuyu