arXiv Machine Learning

Root Cause Analysis of Measurement and Mechanistic Anomalies

The paper introduces a causal framework that distinguishes between measurement errors and mechanism shifts as two distinct sources of anomalies. By modeling outliers as latent interventions on both true and observed variables, the authors derive conditions under which these anomaly types can be differentiated. They present an efficient inference algorithm that localizes root causes and classifies anomaly types, achieving state‑of‑the‑art performance on synthetic and real‑world datasets.

Hugging Face Trending Papers
Jul 9

CAAD: Causality-Aware Multivariate Time Series Anomaly Detection via Multi-Scale Alignment and Structural Causal Consistency

The operational integrity of complex industrial systems relies on precise anomaly detection and diagnosis. The vast majority of existing methods narrowly focus on capturing temporal similarities of representations, often overlooking the disruption of internal causal relationships, which characterizes system failures and latent anomalies.

arXiv Machine Learning
Oct 22

Structured Temporal Causality for Interpretable Multivariate Time Series Anomaly Detection

Structured Temporal Causality for Interpretable Multivariate Time Series Anomaly Detection introduces OracleAD, an unsupervised framework that encodes each variable’s past into a causal embedding to jointly predict the present and reconstruct the input window. The embeddings are projected via self‑attention into a shared latent space, capturing dynamic spatial relationships that are aligned to a Stable Latent Structure (SLS) representing normal-state relationships. Anomalies are detected through a dual scoring mechanism based on prediction error and deviation from the SLS, allowing fine‑grained diagnosis and root‑cause identification at the variable level.

By Dongchan Cho, Jiho Han, Keumyeong Kang, Minsang Kim, Honggyu Ryu, Namsoon Jung
arXiv AI
Aug 24

Root cause analysis via difference graph discovery from linear time-series data

The paper investigates root cause analysis for anomalies in linear time-series data by using difference graph discovery. It focuses on effect-defying root causes—variables whose causal coefficients differ between normal and anomalous regimes—within linear discrete-time dynamic structural causal models. The authors adapt existing difference graph methods to the time-series context, evaluate them on simulated data, and apply them to real-world IT and intensive care monitoring datasets to localize causal mechanisms behind anomalous behavior.

By Anouk Ruer, Timoth\'ee Loranchet, Daria Bystrova, Charles K. Assaad