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Bohan Tang

9 accepted papers

2026

ViMo: A Generative Visual GUI World Model for App Agents

ICLR 2026poster

App agents, which autonomously operate mobile Apps through GUIs, have gained significant interest in real-world applications. Yet, they often struggle with long-horizon planning, failing to find the optimal actions for complex tasks with longer steps. To address this, world models are used to predic…

Cited by 0SourceScholar
2025

Heterogeneous Graph Structure Learning through the Lens of Data-generating Processes

AISTATS 2025poster

Inferring the graph structure from observed data is a key task in graph machine learning to capture the intrinsic relationship between data entities. While significant advancements have been made in learning the structure of homogeneous graphs, many real-world graphs exhibit heterogeneous patterns w…

Cited by 0SourceScholar
2025

Synthesizing Post-Training Data for LLMs through Multi-Agent Simulation

ACL 2025long

Post-training is essential for enabling large language models (LLMs) to follow human instructions. However, its effectiveness depends on high-quality instruction data, which is challenging to obtain in the real world due to privacy concerns, data scarcity, and high annotation costs. To fill this gap…

2025

Training-Free Message Passing for Learning on Hypergraphs

ICLR 2025poster

Hypergraphs are crucial for modelling higher-order interactions in real-world data. Hypergraph neural networks (HNNs) effectively utilise these structures by message passing to generate informative node features for various downstream tasks like node classification. However, the message passing modu…

Cited by 0SourcePDFScholar
2024

Hypergraph Transformer for Semi-Supervised Classification

ICASSP 2024accepted

Hypergraphs play a pivotal role in the modelling of data featuring higher-order relations involving more than two entities. Hypergraph neural networks emerge as a powerful tool for processing hypergraph-structured data, delivering remarkable performance across various tasks, e.g., hypergraph node cl…

Cited by 0SourceScholar
2024

Motion Graph Unleashed: A Novel Approach to Video Prediction

NeurIPS 2024poster

We introduce motion graph, a novel approach to address the video prediction problem, i.e., predicting future video frames from limited past data. The motion graph transforms patches of video frames into interconnected graph nodes, to comprehensively describe the spatial-temporal relationships among…

2021

Collaborative Uncertainty in Multi-Agent Trajectory Forecasting

NeurIPS 2021poster

Uncertainty modeling is critical in trajectory-forecasting systems for both interpretation and safety reasons. To better predict the future trajectories of multiple agents, recent works have introduced interaction modules to capture interactions among agents. This approach leads to correlations amon…

Cited by 24SourcePDFScholar