@article{1259, author = {Amina Makhlouf, Lilia Lazli, Bachir Bensaker}, title = {Hybrid Hidden Markov Models and Genetic Algorithm for Robust Automatic Visual Speech Recognition}, journal = {Journal of Information Technology Review}, year = {2013}, volume = {4}, number = {3}, doi = {}, url = {http://www.dline.info/jitr/fulltext/v4n3/1.pdf}, abstract = {In this paper, we investigate the performance of an Automatic visual speech recognition system (AVSR) using the Hidden Markov Model (HMM) which is optimized by a Genetic Algorithm (GA). The search through the space of HMM structures is combined with optimization of emission and transition probabilities using the Baum-Welch algorithm in the training process. Compared with a HMM-based system, we observe a significant 13-31% improvement of the recognition rates.}, }