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Zhangxuan Gu

10 accepted papers

2026

GUI-G²: Gaussian Reward Modeling for GUI Grounding

AAAI 2026technical

Graphical User Interface (GUI) grounding maps natural language instructions to precise interface locations for autonomous interaction. Current reinforcement learning approaches use binary rewards that treat elements as hit-or-miss targets, creating sparse signals that ignore the continuous nature of

Cited by 0SourcePDFScholar
2026

GUI-SAGE: Enhancing GUI Automation with Self-Explanatory Learning

CVPR 2026

Reinforcement learning with verifiable rewards (RLVR) has shown promise for GUI automation, enabling agents to learn from binary task completion signals. However, when task difficulty exceeds model capacity, on-policy exploration fails to discover correct actions, creating zero-advantage traps that

Cited by 0SourceScholar
2026

VenusBench-Mobile: A Challenging and User-Centric Benchmark for Mobile GUI Agents with Capability Diagnostics

ICML 2026oral

Existing online benchmarks for mobile GUI agents remain largely app-centric and task-homogeneous, failing to reflect the diversity and instability of real-world mobile usage. To this end, we introduce VenusBench-Mobile, a challenging online benchmark for evaluating general-purpose mobile GUI agents …

Cited by 0SourceScholar
2025

Efficient Transfer Learning for Video-language Foundation Models

CVPR 2025poster

Pre-trained vision-language models provide a robust foundation for efficient transfer learning across various downstream tasks. In the field of video action recognition, mainstream approaches often introduce additional modules to capture temporal information. Although the additional modules increase…

2024

Segment Anything Model Meets Image Harmonization

ICASSP 2024accepted

Image harmonization is a crucial technique in image composition that aims to seamlessly match the background by adjusting the foreground of composite images. Current methods adopt either global-level or pixel-level feature matching. Global-level feature matching ignores the proximity prior, treating…

Cited by 0SourceScholar
2023

Backpropagation Path Search On Adversarial Transferability

ICCV 2023poster

Deep neural networks are vulnerable to adversarial examples, dictating the imperativeness to test the model's robustness before deployment. Transfer-based attackers craft adversarial examples against surrogate models and transfer them to victim models deployed in the black-box situation. To enhance…

Cited by 5PDFScholar
2023

DiffUTE: Universal Text Editing Diffusion Model

NeurIPS 2023poster

Diffusion model based language-guided image editing has achieved great success recently. However, existing state-of-the-art diffusion models struggle with rendering correct text and text style during generation. To tackle this problem, we propose a universal self-supervised text editing diffusion mo…

2023

Mobile User Interface Element Detection via Adaptively Prompt Tuning

CVPR 2023poster

Recent object detection approaches rely on pretrained vision-language models for image-text alignment. However, they fail to detect the Mobile User Interface (MUI) element since it contains additional OCR information, which describes its content and function but is often ignored. In this paper, we d…

2022

XYLayoutLM: Towards Layout-Aware Multimodal Networks for Visually-Rich Document Understanding

CVPR 2022poster

Recently, various multimodal networks for Visually-Rich Document Understanding(VRDU) have been proposed, showing the promotion of transformers by integrating visual and layout information with the text embeddings. However, most existing approaches utilize the position embeddings to incorporate the s…

Cited by 105PDFScholar