Table 6 A comparison of using different bias factors and SAD dilation-erosion factors ASR Model 1. WERs are in percent and evaluated on the SAD segmented dev dataset. “G” and “C” represent GMM-HMM aligner and CTC aligner, respectively
From: Timestamp-aligning and keyword-biasing end-to-end ASR front-end for a KWS system
bias factor | SAD α 0.1 | SAD α 0.2 | SAD α 0.3 | SAD α 0.4 | SAD α 0.5 |
|---|---|---|---|---|---|
δ | G | G | G / C | G / C | G / C |
0 (baseline) | 13.7 | 13.3 | 12.9/14.0 | 12.9/15.1 | 13.5/16.7 |
1/4 | 13.7 | 13.2 | 12.6/13.9 | 12.8/15.1 | 13.0/16.7 |
1/3 | 13.7 | 13.3 | 12.6/14.0 | 12.8/15.1 | 13.3/16.8 |
1/2 | 13.5 | 13.3 | 12.6/13.8 | 12.8/15.0 | 13.0/16.6 |
1 | 13.6 | 13.2 | 12.6/13.8 | 12.7/15.0 | 12.9/16.8 |
2 | 13.6 | 13.3 | 12.7/13.8 | 12.8/15.0 | 13.0/16.8 |
4 | 13.6 | 13.1 | 12.7/13.8 | 12.8/14.9 | 13.1/16.5 |