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Author

Giulio Jacucci

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Preprint Aug 2026

Lexical Coupling in GUI Element Grounding: Sentence Embeddings Track Labels across Mobile and Web

GUI grounding evaluations that expose UI elements as text metadata often treat high instruction-element embedding similarity as evidence of semantic grounding. Across three mobile and web benchmarks, we show that this interpretation is frequently confounded by visible-label recovery. Lexical baselines remain competitiv...

Qi-Jia Chen, Giulio Jacucci · 0 citations

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