mlsanityData to 14 Oct 2026

CXR-LT 2026 Challenge: Projection-Aware Multi-Label and Zero-Shot Chest X-Ray Classification

arXiv 2604.02185 ↗First posted 2 Apr 2026cs.CVcited by 1

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Abstract (arXiv)

This challenge tackles multi-label classification for known chest X-ray (CXR) lesions and zero-shot classification for unseen ones. To handle diverse CXR projections, we integrate projection-specific models via a classification network into a unified framework. For zero-shot classification (Task 2), we extend CheXzero with a novel dual-branch architecture that combines contrastive learning, Asymmetric Loss (ASL), and LLM-generated descriptive prompts. This effectively mitigates severe long-tail imbalances and maximizes zero-shot generalization. Additionally, strong data and test-time augmentations (TTA) ensure robustness across both tasks.

Key facts. Cited by 1 paper in the map (data through 14 Oct 2026). Builds on 17 of its 21 references that are in the map. First posted on arXiv 2 Apr 2026.

Builds on

17 of 21 references.

References · 17

  1. 2021Learning Transferable Visual Models From Natural Language Supervisioncited by 33,744
  2. 2020An Image is Worth 16x16 Words: Transformers for Image Recognition at Scalecited by 30,186
  3. 2021Swin Transformer: Hierarchical Vision Transformer using Shifted Windowscited by 12,139
  4. 2016Densely Connected Convolutional Networkscited by 6,720
  5. 2019EfficientNet: Rethinking Model Scaling for Convolutional Neural Networkscited by 6,442
  6. 2022A ConvNet for the 2020scited by 3,579
  7. 2019CheXpert: A Large Chest Radiograph Dataset with Uncertainty Labels and Expert Comparisoncited by 1,423
  8. 2021Swin Transformer V2: Scaling Up Capacity and Resolutioncited by 1,228
  9. 2021Going deeper with Image Transformerscited by 764
  10. 2023ConvNeXt V2: Co-designing and Scaling ConvNets with Masked Autoencoderscited by 712
  11. 2017CheXNet: Radiologist-Level Pneumonia Detection on Chest X-Rays with Deep Learningcited by 461
  12. 2020Asymmetric Loss For Multi-Label Classificationcited by 381
5 more
  1. 2022What does a platypus look like? Generating customized prompts for zero-shot image classificationcited by 267
  2. 2020Weakly Supervised Lesion Localization With Probabilistic-CAM Poolingcited by 36
  3. 2024BiomedCoOp: Learning to Prompt for Biomedical Vision-Language Modelscited by 28
  4. 2021Vision Transformer using Low-level Chest X-ray Feature Corpus for COVID-19 Diagnosis and Severity Quantificationcited by 21
  5. 2026Overview of the CXR-LT 2026 Challenge: Multi-Center Long-Tailed and Zero Shot Chest X-ray Classificationcited by 3

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Cited by year (2026 to 14 Oct)

Citing papers per year: 2026: 1.

1 paper.

  1. 2026CXR-LT 2026 Challenge: Multi-Center Long-Tailed and Zero Shot Chest X-ray Classificationcited by 1