Computer Science

Computer Science ›› 2022, Vol. 49 ›› Issue (6): 245-253.doi: 10.11896/jsjkx.210400023

• Computer Graphics & Multimedia • Previous Articles     Next Articles

Compression Algorithm of Face Recognition Model Based on Unlabeled Knowledge Distillation

CHENG Xiang-ming, DENG Chun-hua   

  1. College of Computer Science and Technology,Wuhan University of Science and Technology,Wuhan 430065,China
    Institute of Big Data Science and Engineering,Wuhan University of Science and Technology,Wuhan 430065,China
    Hubei key Laboratory of Intelligent Information Processing and Real-time Industrial System,Wuhan University of Science and Technology,Wuhan 430065,China
  • Received:2021-03-31 Revised:2021-09-04 Online:2022-06-15 Published:2022-06-08
  • About author:CHENG Xiang-ming,born in 1996,postgraduate.His main research interests include computer vision and model compression.
    DENG Chun-hua,born in 1984,Ph.D,associate professor.His main research interests include computer vision and machine learning.
  • Supported by:
    National Natural Science Foundation of China(61806150).

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Abstract: When transplanting face recognition technology to mobile devices,it often needs to be processed by accelerated algorithms such as model compression.Knowledge distillation is a model compression method that has a wide range of practical applications and is easy to train.Existing knowledge distillation algorithms require a large amount of tagged face data,which may involve security issues such as identity privacy leakage.At the same time,the cost of large-scale collection of tagged face data is relatively high,while the massive amount of unlabeled face data that can be collected or generated cannot be used.In order to solve the above problems,this paper analyzes the characteristics of knowledge distillation in face recognition tasks,and proposes an indirect supervised training method of unlabeled knowledge distillation.This method can utilize massive amounts of unlabeled face data,thereby avoiding security risks such as privacy leakage.However,the data distribution of the unlabeled face data set is unpredictable,and there is the problem of uneven data distribution,which limits the performance of the indirect supervision algorithm.This research further proposes a data enhancement method for face content replacement,which balances the distribution of face data by replacing part of the content of the face,and at the same time enhances the diversity of face data.Sufficient experimental results show that when the face recognition model is greatly compressed,the performance of the algorithm in this research reaches an advanced level,and surpasses the large-scale network on the LFW data set.

Key words: Content replacement, Face recognition, Indirect supervision, Knowledge distillation, Model compression

CLC Number: 

  • TP391
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