Table 7 A comparison of using different bias factors and SAD dilation-erosion factors on ASR Model 2. 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 | 14.0 | 13.7 | 12.9/13.9 | 12.8/15.1 | 13.5/17.0 |
1/3 | 14.0 | 13.8 | 12.9/14.2 | 13.1/15.5 | 13.5/17.0 |
1/2 | 13.8 | 13.4 | 13.0/14.3 | 13.1/15.3 | 13.5/16.8 |
1 | 14.2 | 13.7 | 12.9/13.8 | 12.7/15.0 | 12.3/16.8 |
2 | 13.8 | 13.1 | 12.8/15.1 | 12.7/15.0 | 13.6/16.7 |
4 | 14.9 | 14.0 | 13.7/16.4 | 13.9/17.2 | 14.7/17.8 |