arXiv Computation and Language By Liyang Fan, Xinping Bi, Yitai Li, Shuaimin Li, Hui Li, Min Yang

RankGround: Efficient High-Resolution GUI Grounding via Lightweight Reranker-Guided Crop Selection

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RankGround is a two‑stage framework for GUI grounding that uses a single Vision‑Language Model call per query. It introduces GroundRanker, a lightweight multimodal reranker that selects the most promising crop from a dense candidate set, trained with a two‑stage curriculum on ranking supervision data derived from existing grounding datasets. Experiments show RankGround outperforms strong baselines, achieving 1.4× faster inference and a 5.5% average improvement in localization accuracy over the second‑best method across all backbones and screen scales.

Machine-generated by The Flow from the publisher's headline and feed description — not written or checked by a human. The full article lives at arXiv Computation and Language.

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