Xiaoran Yan

Graph Filters and the <italic>Z</italic>-Laplacian

2017 · IEEE Journal of Selected Topics in Signal Processing

In network science, the interplay between dynamical processes and the underlying topologies of complex systems has led to a diverse family of models with different interpretations. In graph signal processing, this is manifested in the …

Point-Correlate Adversarial Transformer for Unsupervised Multivariate Time Series Anomaly Detection

2024

Multivariate time series anomaly detection plays a crucial role in industrial production. However, the inherent complexity and randomness of time series pose significant challenges. Furthermore, existing detection methods struggle to provide reliable explanations for outliers. …