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14 June 2024
 
  » arxiv » 2302.00275

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Learning Generalized Zero-Shot Learners for Open-Domain Image Geolocalization
Lukas Haas ; Silas Alberti ; Michal Skreta ;
Date 1 Feb 2023
AbstractImage geolocalization is the challenging task of predicting the geographic coordinates of origin for a given photo. It is an unsolved problem relying on the ability to combine visual clues with general knowledge about the world to make accurate predictions across geographies. We present $href{this https URL}{ ext{StreetCLIP}}$, a robust, publicly available foundation model not only achieving state-of-the-art performance on multiple open-domain image geolocalization benchmarks but also doing so in a zero-shot setting, outperforming supervised models trained on more than 4 million images. Our method introduces a meta-learning approach for generalized zero-shot learning by pretraining CLIP from synthetic captions, grounding CLIP in a domain of choice. We show that our method effectively transfers CLIP’s generalized zero-shot capabilities to the domain of image geolocalization, improving in-domain generalized zero-shot performance without finetuning StreetCLIP on a fixed set of classes.
Source arXiv, 2302.00275
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