Frank Ruis

2 accepted papers

2026

Fantastic Tractor-Dogs and How Not to Find Them With Open-Vocabulary Detectors

Frank Ruis, Gertjan J. Burghouts, Hugo Kuijf

ICLR 2026poster

Open-Vocabulary Detectors (OVDs) excel in zero-shot benchmarks, but we observe a critical flaw in real-world deployment: a high rate of confident false positive predictions on images that do not contain any target objects (e.g., detecting a tractor in an image of a dog). This issue is masked by stan…

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2021

Independent Prototype Propagation for Zero-Shot Compositionality

Frank Ruis, Gertjan J. Burghouts, Doina Bucur

NeurIPS 2021poster

Humans are good at compositional zero-shot reasoning; someone who has never seen a zebra before could nevertheless recognize one when we tell them it looks like a horse with black and white stripes. Machine learning systems, on the other hand, usually leverage spurious correlations in the training d…

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