Replay Speech Answer-Sheet Detection on Intelligent Language Learning System Based on Power Spectrum Decomposition.
Qingzhu WuShaowei XiongZhengyu ZhuPublished in: IEEE Access (2021)
Keyphrases
- language learning
- power spectrum
- language acquisition
- frequency analysis
- frequency domain
- natural images
- power spectral
- foreign language
- computer assisted language learning
- english language
- spectral estimation
- mobile learning
- multiresolution
- density function
- image segmentation
- machine learning
- probability distribution
- language learners
- language skills
- vocabulary learning
- image processing
- face recognition
- object recognition
- computational model
- pairwise
- detection algorithm