Title :
The 2013 BBN Vietnamese telephone speech keyword spotting system
Author :
Tsakalidis, Stavros ; Hsiao, Ruey-Chang ; Karakos, Damianos ; Ng, Timothy ; Ranjan, Sudhir ; Saikumar, Guruprasad ; Le Zhang ; Nguyen, L. ; Schwartz, R. ; Makhoul, John
Author_Institution :
Raytheon BBN Technol., Cambridge, MA, USA
Abstract :
In this paper we describe the Vietnamese conversational telephone speech keyword spotting system under the IARPA Babel program for the 2013 evaluation conducted by NIST. The system contains several, recently developed, novel methods that significantly improve speech-to-text and keyword spotting performance such as stacked bottleneck neural network features, white listing, score normalization, and improvements on semi-supervised training methods. These methods resulted in the highest performance for the official IARPA Babel surprise language evaluation of 2013.
Keywords :
speech recognition; telephone sets; IARPA Babel surprise language evaluation; NIST; Vietnamese conversational telephone speech keyword spotting system; score normalization; semi-supervised training methods; speech-to-text; stacked bottleneck neural network features; white listing; Acoustics; Adaptation models; Hidden Markov models; Lattices; Speech; Speech recognition; Training; keyword spotting; score normalization; stacked bottleneck neural network features; white listing;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on
Conference_Location :
Florence
DOI :
10.1109/ICASSP.2014.6855124
