2021 IEEE International Conference on Acoustics, Speech and Signal Processing
6-11 June 2021 • Toronto, Ontario, Canada
Extracting Knowledge from Information
| Paper ID | SPE-42.1 | ||
| Paper Title | A STAGE MATCH FOR QUERY-BY-EXAMPLE SPOKEN TERM DETECTION BASED ON STRUCTURE INFORMATION OF QUERY | ||
| Authors | Junyao Zhan, Qianhua He, Jianbin Su, Yanxiong Li, South China University of Technology, China | ||
| Session | SPE-42: Keyword Spotting | ||
| Location | Gather.Town | ||
| Session Time: | Thursday, 10 June, 15:30 - 16:15 | ||
| Presentation Time: | Thursday, 10 June, 15:30 - 16:15 | ||
| Presentation | Poster | ||
| Topic | Speech Processing: [SPE-GASR] General Topics in Speech Recognition | ||
| IEEE Xplore Open Preview | Click here to view in IEEE Xplore | ||
| Abstract | The state-of-the-art of query-by-example spoken term detection (QbE-STD) strategies are usually based on segmental dynamic time warping (S-DTW). However, the sliding window in S-DTW may separate signal of a word into different segments and produce many illegal candidates required to be compared with the query, which significantly reduce the accuracy and efficiency of detection. In this paper, we propose a stage match strategy based on the structure information of the query, represented with the unvoiced-voiced attribute of the portions in itself. The strategy first locates potential candidates with similar structure against the query in utterances, and further matches the query with Type-Location DTW (TL-DTW), which is a modified DTW with the constraints of pronunciation types and relative positions of paired frames in the voiced sub-segments. Experiments on AISHELL-1 Corpus showed that the proposed approach achieved a relative improvement of 30.51% in AUC against S-DTW and speeded up the retrieval. | ||