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Cited by 581

The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

NormFace: L 2 Hypersphere Embedding for Face Verification

Open access
Wang, Feng, Xiang, Xiang, Cheng, Jian, Yuille, Alan Loddon·2017·Proceedings of the 25th ACM international conference on Multimedia

Abstract

Thanks to the recent developments of Convolutional Neural Networks, the performance of face verification methods has increased rapidly. In a typical face verification method, feature normalization is a critical step for boosting performance. This motivates us to introduce and study the effect of normalization during training. But we find this is non-trivial, despite normalization being differentiable. We identify and study four issues related to normalization through mathematical analysis, which yields understanding and helps with parameter settings. Based on this analysis we propose two strategies for training using normalized features. The first is a modification of softmax loss, which optimizes cosine similarity instead of inner-product. The second is a reformulation of metric learning by introducing an agent vector for each class. We show that both strategies, and small variants, consistently improve performance by between 0.2% to 0.4% on the LFW dataset based on two models. This is significant because the performance of the two models on LFW dataset is close to saturation at over 98%.

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Metadata

Authors
Wang, F., Xiang, X., Cheng, J., & Yuille, A. L.
Venue
Proceedings of the 25th ACM international conference on Multimedia
Publisher
ACM
Published
2017-10-19
Pages
1041-1049
OpenAlex
W2609575245
Cited by
581
References
5
FWCI
13.35
Type
conference paper
Language
en
Open access
green

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CoChat. (2026). Citation check: NormFace: L 2 Hypersphere Embedding for Face Verification. https://app.cochat.ai/papers/10.1145/3123266.3123359
The paper
Wang, F., Xiang, X., Cheng, J., & Yuille, A. L. (2017). NormFace: L 2 Hypersphere Embedding for Face Verification. Proceedings of the 25th ACM international conference on Multimedia. https://doi.org/10.1145/3123266.3123359

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