Diffusion -driven group anomaly detection in spatiotemporal trajectories: Robust masked sequence imputation for enhanced pattern discovery.

@article{ouyang-2026-diffusion, author = {Qi Ouyang and Hongchang Chen and Shuxin Liu and Ran Li and Kai Wang and Yingle Li}, title = {{Diffusion -driven group anomaly detection in spatiotemporal trajectories: Robust masked sequence imputation for enhanced pattern discovery}}, journal = {Information Processing and Management}, volume = {63}, number = {5}, pages = {104650}, year = {2026}, url = {https://doi.org/10.1016/J.IPM.2026.104650}, doi = {https://doi.org/10.1016/J.IPM.2026.104650} }