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An encrypted speech retrieval algorithm based on Chirp-Z transform and perceptual hashing second feature extraction.
Qiu-yu Zhang
Zi-xian Ge
Yingjie Hu
Jian Bai
Yi-Bo Huang
Published in:
Multim. Tools Appl. (2020)
Keyphrases
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feature extraction
information retrieval
pattern recognition
machine learning
feature vectors
image classification
hamming distance