arXiv AI By Yunxiang Li, Xixin Wu, Helen Meng

How Many Pixels Is a Digit Worth? Place-Aware Coordinate Entropy for GUI Agent Confidence Estimation

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arXiv Computer Vision
Sep 15

Learning from Reliable Negatives: Confidence-Anchored Test-Time Adaptation for GUI Grounding

The paper introduces a label‑free test‑time training approach for GUI grounding, leveraging confidence patterns in coordinate tokens rather than full‑sequence confidence. It proposes Confidence‑Anchored Learning (CAL) to filter pseudo‑labels and assign distance‑based binary rewards, and extends this to Confidence‑Anchored Negative Learning (CANL) which optimizes solely on negative samples to avoid noisy positives. Experiments show that CANL‑7B achieves 92.1% on ScreenSpot‑V2 and 33.8% on ScreenSpot‑Pro, improving the base model by 8.9%.

By Yizhou Liu, Fei Tang, Yuchen Yan, Zhengxi Lu, Songqin Nong, Tao Jiang, Wenhao Xu, Wenqi Zhang, Weiming Lu, Jun Xiao, Yongliang Shen
arXiv Computer Vision
Oct 12

ConClick: Element-Wise Contrastive Learning Improves GUI Grounding

ConClick introduces a contrastive learning framework that improves GUI grounding by teaching models to distinguish target interface elements from plausible distractors. The authors built ConClick-Data, a dataset of 4,292 challenging target-distractor pairs, and trained the model with listwise ranking and pairwise margin objectives, achieving significant accuracy gains on multiple benchmarks. An inference-time strategy called ReClick further boosts performance by revisiting promising regions and comparing competing predictions.

By Ruotian Zhang, Yuhui Zhang, Junzhe Huang, Yu Xin, Hehe Fan, Xiaoxiao Sun
Hugging Face Trending Papers
Oct 13

MHVF: Training-Free GUI Grounding via Verification-Guided Multi-Hypothesis Search

The paper introduces MHVF, a training‑free framework for GUI grounding that uses multi‑hypothesis exploration and local visual verification with a single pretrained vision‑language model. MHVF generates spatial hypotheses from full‑screen predictions, refines them through zoomed re‑localization, and verifies candidate agreement with the instruction to resolve ambiguity. Experiments on eight benchmarks with five models show significant accuracy gains, notably improving UI‑Venus‑Ground‑7B by 4.3 pp on Mind2Web and raising Qwen2.5‑VL‑7B’s ScreenSpot‑Pro accuracy from 23.6 % to 53.6 %.