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R. Ewerth

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Preprint Jul 2026

Using Hierarchical Controlled Vocabularies to Understand CLIP Retrieval Failures in Historical Photo Collections

It is found that visual coherence and text-image alignment are nearly uncorrelated across terms and jointly separate distinct failure modes, and fine-tuning improves retrieval overall, but its gains favour shallower terms in the hierarchy, where text-image alignment improves most, beyond what concept frequency explains...

Ratan J. Sebastian, Anett Hoppe, Christoph Rippe et al. · 0 citations

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