Search Results for author: Nina Weng

Found 8 papers, 3 papers with code

Slicing Through Bias: Explaining Performance Gaps in Medical Image Analysis using Slice Discovery Methods

no code implementations17 Jun 2024 Vincent Olesen, Nina Weng, Aasa Feragen, Eike Petersen

Sex-based differences in the prevalence of these shortcut features appear to cause the observed classification performance gap, representing a previously underappreciated interaction between shortcut learning and model fairness analyses.

Fairness

Generalizing Fairness to Generative Language Models via Reformulation of Non-discrimination Criteria

1 code implementation13 Mar 2024 Sara Sterlie, Nina Weng, Aasa Feragen

Our results address the presence of occupational gender bias within such conversational language models.

Fairness

Shortcut Learning in Medical Image Segmentation

1 code implementation11 Mar 2024 Manxi Lin, Nina Weng, Kamil Mikolaj, Zahra Bashir, Morten Bo Søndergaard Svendsen, Martin Tolsgaard, Anders Nymark Christensen, Aasa Feragen

Shortcut learning is a phenomenon where machine learning models prioritize learning simple, potentially misleading cues from data that do not generalize well beyond the training set.

Image Classification Image Segmentation +3

Fast Diffusion-Based Counterfactuals for Shortcut Removal and Generation

1 code implementation21 Dec 2023 Nina Weng, Paraskevas Pegios, Eike Petersen, Aasa Feragen, Siavash Bigdeli

Via a novel inpainting-based modification we spatially limit the changes made with no extra inference step, encouraging the removal of spatially constrained shortcut features while ensuring that the shortcut-free counterfactuals preserve their remaining image features to a high degree.

counterfactual Counterfactual Explanation +1

Are Sex-based Physiological Differences the Cause of Gender Bias for Chest X-ray Diagnosis?

no code implementations9 Aug 2023 Nina Weng, Siavash Bigdeli, Eike Petersen, Aasa Feragen

In this work, we investigate the causes of gender bias in machine learning-based chest X-ray diagnosis.

Fairness

Will You Ever Become Popular? Learning to Predict Virality of Dance Clips

no code implementations6 Nov 2021 Jiahao Wang, Yunhong Wang, Nina Weng, Tianrui Chai, Annan Li, Faxi Zhang, Sansi Yu

Therefore, virality prediction from dance challenges is of great commercial value and has a wide range of applications, such as smart recommendation and popularity promotion.

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