10 papers
Where Root Cause Analysis Fails: A Retrieval-Reranking Decomposition
Hada Melino Muhammad, Luan Pham, Laure Barrière +3
Identifying the root cause of an anomaly among hundreds of sensors is critical for preventing safety incidents and costly downtime in complex monitored systems. Existing studies ev…
Target-Weighted Neyman Allocation: Experimental Design for Heterogeneous Treatment Effects under Population Shift
Hoang Dang, Luan Pham, Minh Nguyen
Randomized experiments are often run in one population to guide decisions in another. Allocating by experimental proportions wastes budget on groups that rarely appear in deploymen…
Adaptive Radial Projection on Fourier Magnitude Spectrum for Document Image Skew Estimation
Luan Pham, Phu Hao Hoang, Xuan Toan Mai +1
Skew estimation is one of the vital tasks in document processing systems, especially for scanned document images, because its performance impacts subsequent steps directly. Over th…
Facial Expression Recognition Using Residual Masking Network
Luan Pham, The Huynh Vu, Tuan Anh Tran
Automatic facial expression recognition (FER) has gained much attention due to its applications in human-computer interaction. Among the approaches to improve FER tasks, this paper…
Effect-Level Validation for Causal Discovery
Hoang Dang, Luan Pham, Minh Nguyen
Causal discovery is increasingly applied to large-scale telemetry data to estimate the effects of user-facing interventions, yet its reliability for decision-making in feedback-dri…
Graph-Free Root Cause Analysis
Luan Pham
Failures in complex systems demand rapid Root Cause Analysis (RCA) to prevent cascading damage. Existing RCA methods that operate without dependency graph typically assume that the…
Hypergraph-Guided Regex Filter Synthesis for Event-Based Anomaly Detection
Margarida Ferreira, Victor Nicolet, Luan Pham +4
We propose HyGLAD, a novel algorithm that automatically builds a set of interpretable patterns that model event data. These patterns can then be used to detect event-based anomalie…
RCAEval: A Benchmark for Root Cause Analysis of Microservice Systems with Telemetry Data
Luan Pham, Hongyu Zhang, Huong Ha +2
Root cause analysis (RCA) for microservice systems has gained significant attention in recent years. However, there is still no standard benchmark that includes large-scale dataset…
Root Cause Analysis for Microservice System based on Causal Inference: How Far Are We?
Luan Pham, Huong Ha, Hongyu Zhang
Microservice architecture has become a popular architecture adopted by many cloud applications. However, identifying the root cause of a failure in microservice systems is still a…
BARO: Robust Root Cause Analysis for Microservices via Multivariate Bayesian Online Change Point Detection
Luan Pham, Huong Ha, Hongyu Zhang
Detecting failures and identifying their root causes promptly and accurately is crucial for ensuring the availability of microservice systems. A typical failure troubleshooting pip…