In Defense of the Triplet Loss for Person Re-Identification
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Abstract (arXiv)
In the past few years, the field of computer vision has gone through a revolution fueled mainly by the advent of large datasets and the adoption of deep convolutional neural networks for end-to-end learning. The person re-identification subfield is no exception to this. Unfortunately, a prevailing belief in the community seems to be that the triplet loss is inferior to using surrogate losses (classification, verification) followed by a separate metric learning step. We show that, for models trained from scratch as well as pretrained ones, using a variant of the triplet loss to perform end-to-end deep metric learning outperforms most other published methods by a large margin.
Key facts. Cited by 786 papers in the map (data through 14 Oct 2026). First posted on arXiv 22 Mar 2017.
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Citing papers per year: 2021: 223; 2022: 163; 2023: 133; 2024: 119; 2025: 74; 2026: 74.
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