@article{anencodethendecomposeapproachtounsupervi, title = {An Encode-then-Decompose Approach to Unsupervised Time Series Anomaly Detection on Contaminated Training Data--Extended Version}, author = {Buang Zhang and Tung Kieu and Xiangfei Qiu and Chenjuan Guo and Jilin Hu and Aoying Zhou and Christian S. Jensen and Bin Yang}, year = {2025}, eprint = {2510.18998}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2510.18998}, }