TY - JOUR AU - Thang, Ta Bao AU - Son, Dang Dinh AU - Linh, Le Dang AU - Vuong, Dang Xuan AU - Tien, Duong Quang PY - 2022/06/30 TI - ASR - VLSP 2021: Automatic Speech Recognition with Blank Label Re-weighting JF - VNU Journal of Science: Computer Science and Communication Engineering; Vol 38 No 1: Special Issue: The 8th International Workshop on Vietnamese Language and Speech Processing (VLSP 2021)DO - 10.25073/2588-1086/vnucsce.321 KW - N2 - End-to-end models have significant potential in most languages and recently proved the robustness in ASR tasks. Many robust architectures are proposed, and among many techniques, Recurrent Neural Network - Transducer (RNN-T) shows remarkable success. However, with background noise or reverb in spontaneous speech, this architecture generally suffers from high deletion error problems. For this reason, we propose the blank label re-weighting technique to improve the state-of-the-art Conformer transducer model. Our proposed system adopts the Stochastic Weight Averaging approach, stabilizing the training process. Our work achieved the first rank with a 4.17% of word error rate in Task 2 of the VLSP 2021 Competition.   UR - //jcsce.vnu.edu.vn/index.php/jcsce/article/view/321