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Xiaohang Xu

5 accepted papers

2026

Co-EPG: A Framework for Co-Evolution of Planning and Grounding in Autonomous GUI Agents

AAAI 2026technical

Graphical User Interface (GUI) task automation constitutes a critical frontier in artificial intelligence research. While effective GUI agents synergistically integrate planning and grounding capabilities, current methodologies exhibit two fundamental limitations: (1) insufficient exploitation of cr

Cited by 0SourcePDFScholar
2026

ELLMob: Event-Driven Human Mobility Generation with Self-Aligned LLM Framework

ICLR 2026poster

Human mobility generation aims to synthesize plausible trajectory data, which is widely used in urban system research. While Large Language Model-based methods excel at generating routine trajectories, they struggle to capture deviated mobility during large-scale societal events. This limitation ste…

Cited by 0SourcecodeScholar
2026

Importance-Aware Data Selection for Efficient LLM Instruction Tuning

AAAI 2026technical

Instruction tuning plays a critical role in enhancing the performance and efficiency of Large Language Models (LLMs). Its success depends not only on the quality of the instruction data but also on the inherent capabilities of the LLM itself. Some studies suggest that even a small amount of high-qua

Cited by 0SourcePDFScholar
2024

A Detailed Audio-Text Data Simulation Pipeline Using Single-Event Sounds

ICASSP 2024accepted

Recently, there has been an increasing focus on audio-text cross-modal learning. However, most of the existing audio-text datasets contain only simple descriptions of sound events. Compared with classification labels, the advantages of such descriptions are significantly limited. In this paper, we f…

Cited by 0SourceScholar
2024

Taming the Long Tail in Human Mobility Prediction

NeurIPS 2024poster

With the popularity of location-based services, human mobility prediction plays a key role in enhancing personalized navigation, optimizing recommendation systems, and facilitating urban mobility and planning. This involves predicting a user's next POI (point-of-interest) visit using their past visi…