arXiv Machine Learning By Helo\'isa Dias Viotto, Cau\^e Samonek, Lucas Garcia Pedroso, Marcos Sunye, Andr\'e Abed Gr\'egio, Paulo Lisboa de Almeida

How Far is Too Far? Defining the Distance Threshold for Verification Siamese Networks

Read the original on arXiv Machine Learning →

arXiv:2607. 05329v1 Announce Type: new Abstract: Siamese verification networks are widely used to compare items such as faces, cars, or signatures.

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arXiv AI
Jun 24

Evaluating the Interpretability of Sparse Autoencoders with Concept Annotations

arXiv:2606. 24716v1 Announce Type: cross Abstract: Sparse autoencoders (SAEs) are increasingly used to extract interpretable concepts from vision and vision language models, yet existing evaluation methods largely rely on proxy metrics or qualitative inspection rather than measuring semantic correspondence.

By Jonas Klotz, Cassio F. Dantas, Pallavi Jain, Diego Marcos, Beg\"um Demir
arXiv AI
Sep 4

ScoreMix: Synthetic Data Generation by Score Composition in Diffusion Models Improves Recognition

ScoreMix is a self‑contained synthetic data generation method that improves recognition tasks by mixing class‑conditioned scores along reverse diffusion trajectories, thereby creating hard synthetic samples without external resources. The approach shows that selecting classes far apart in the discriminator’s embedding space yields larger performance gains, up to 3% more improvement than proximity‑based selection. Across eight public face recognition benchmarks, ScoreMix boosts accuracy by up to 7 percentage points, demonstrating robustness and practicality without hyperparameter tuning.

By Parsa Rahimi, Sebastien Marcel