4 papers
Adaptive Domain Shift in Diffusion Models for Cross-Modality Image Translation
Zihao Wang, Yuzhou Chen, Shaogang Ren
Cross-modal image translation remains brittle and inefficient. Standard diffusion approaches often rely on a single, global linear transfer between domains. We find that this short…
InvarGC: Invariant Granger Causality for Heterogeneous Interventional Time Series under Latent Confounding
Ziyi Zhang, Shaogang Ren, Xiaoning Qian +1
Granger causality is widely used for causal structure discovery in complex systems from multivariate time series data. Traditional Granger causality tests based on linear models of…
LLM Based Bayesian Optimization for Prompt Search
Adam Ballew, Jingbo Wang, Shaogang Ren
Bayesian Optimization (BO) has been widely used to efficiently optimize expensive black-box functions with limited evaluations. In this paper, we investigate the use of BO for prom…
MuST2-Learn: Multi-view Spatial-Temporal-Type Learning for Heterogeneous Municipal Service Time Estimation
Nadia Asif, Zhiqing Hong, Shaogang Ren +3
Non-emergency municipal services such as city 311 systems have been widely implemented across cities in Canada and the United States to enhance residents' quality of life. These sy…