mlsanityData to 7 Oct 2026

2nd Place Solution to Google Landmark Retrieval 2021

arXiv 2110.04294 ↗First posted 8 Oct 2021cs.CVcited by 5

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Abstract (arXiv)

This paper presents the 2nd place solution to the Google Landmark Retrieval 2021 Competition on Kaggle. The solution is based on a baseline with training tricks from person re-identification, a continent-aware sampling strategy is presented to select training images according to their country tags and a Landmark-Country aware reranking is proposed for the retrieval task. With these contributions, we achieve 0.52995 mAP@100 on private leaderboard. Code available at https://github.com/WesleyZhang1991/Google_Landmark_Retrieval_2021_2nd_Place_Solution

Key facts. Cited by 5 papers in the map (data through 7 Oct 2026). Builds on 15 of its 17 references that are in the map. First posted on arXiv 8 Oct 2021.

Builds on

15 of 17 references.

References · 15

  1. 2019EfficientNet: Rethinking Model Scaling for Convolutional Neural Networkscited by 6,415
  2. 2017Squeeze-and-Excitation Networkscited by 4,763
  3. 2016Aggregated Residual Transformations for Deep Neural Networkscited by 2,540
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  9. 2017Re-ranking Person Re-identification with k-reciprocal Encodingcited by 260
  10. 2017Beyond triplet loss: a deep quadruplet network for person re-identificationcited by 172
  11. 2019Large-scale Landmark Retrieval/Recognition under a Noisy and Diverse Datasetcited by 17
  12. 2020Supporting large-scale image recognition with out-of-domain samplescited by 9
3 more
  1. 2021Towards A Fairer Landmark Recognition Datasetcited by 9
  2. 20201st Place Solution to Google Landmark Retrieval 2020cited by 6
  3. 20203rd Place Solution to "Google Landmark Retrieval 2020"cited by 5

Built on by

Cited by year

Citing papers per year: 2022: 3; 2023: 1; 2024: 0; 2025: 1.

5 papers.

  1. 2022Privacy-Preserving Model Upgrades with Bidirectional Compatible Training in Image Retrievalcited by 9
  2. 2022Darwinian Model Upgrades: Model Evolving with Selective Compatibilitycited by 4
  3. 2022Improving Fairness in Large-Scale Object Recognition by CrowdSourced Demographic Informationcited by 2
  4. 2025Prototype Perturbation for Relaxing Alignment Constraints in Backward-Compatible Learningcited by 2
  5. 2023MABNet: Master Assistant Buddy Network with Hybrid Learning for Image Retrievalcited by 0