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Identifying root causes for unexpected or undesirable behavior in complex systems is a prevalent challenge. This issue becomes especially crucial in modern cloud applications that employ numerous microservices. Although the machine learning…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-04-10 Michaela Hardt , William R. Orchard , Patrick Blöbaum , Shiva Kasiviswanathan , Elke Kirschbaum

Key Performance Indicators (KPI), which are essentially time series data, have been widely used to indicate the performance of telecom networks. Based on the given KPIs, a large set of anomaly detection algorithms have been deployed for…

Machine Learning · Computer Science 2023-05-26 Hamza Bodor , Thai V. Hoang , Zonghua Zhang

Cloud computing is ubiquitous: more and more companies are moving the workloads into the Cloud. However, this rise in popularity challenges Cloud service providers, as they need to monitor the quality of their ever-growing offerings…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-08-04 Mohammad Saiful Islam , William Pourmajidi , Lei Zhang , John Steinbacher , Tony Erwin , Andriy Miranskyy

Diagnosing the root causes of Quality of Experience (QoE) degradations in operational mobile networks is challenging due to complex cross-layer interactions among kernel performance indicators (KPIs) and the scarcity of reliable expert…

Machine Learning · Computer Science 2025-11-18 Qizhe Li , Haolong Chen , Jiansheng Li , Shuqi Chai , Xuan Li , Yuzhou Hou , Xinhua Shao , Fangfang Li , Kaifeng Han , Guangxu Zhu

Ensuring the reliability and availability of cloud services necessitates efficient root cause analysis (RCA) for cloud incidents. Traditional RCA methods, which rely on manual investigations of data sources such as logs and traces, are…

Diagnosing the root cause of an anomaly in a complex interconnected system is a pressing problem in today's cloud services and industrial operations. We propose In-Distribution Interventions (IDI), a novel algorithm that predicts root cause…

Machine Learning · Computer Science 2025-05-05 Lokesh Nagalapatti , Ashutosh Srivastava , Sunita Sarawagi , Amit Sharma

Effectively localizing root causes of performance anomalies is crucial to enabling the rapid recovery and loss mitigation of microservice applications in the cloud. Depending on the granularity of the causes that can be localized, a service…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-05-09 Ruyue Xin , Peng Chen , Zhiming Zhao

Runtime failure and performance degradation is commonplace in modern cloud systems. For cloud providers, automatically determining the root cause of incidents is paramount to ensuring high reliability and availability as prompt fault…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-07-12 Zhiqiang Xie , Yujia Zheng , Lizi Ottens , Kun Zhang , Christos Kozyrakis , Jonathan Mace

Root cause analysis in a large-scale production environment is challenging due to the complexity of services running across global data centers. Due to the distributed nature of a large-scale system, the various hardware, software, and…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-04-30 Fred Lin , Keyur Muzumdar , Nikolay Pavlovich Laptev , Mihai-Valentin Curelea , Seunghak Lee , Sriram Sankar

High-resolution 3D point clouds are highly effective for detecting subtle structural anomalies in industrial inspection. However, their dense and irregular nature imposes significant challenges, including high computational cost,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-18 Zi Wang , Katsuya Hotta , Koichiro Kamide , Yawen Zou , Chao Zhang , Jun Yu

Internet-based services have seen remarkable success, generating vast amounts of monitored key performance indicators (KPIs) as univariate or multivariate time series. Monitoring and analyzing these time series are crucial for researchers,…

Machine Learning · Computer Science 2023-08-02 Zhenyu Zhong , Qiliang Fan , Jiacheng Zhang , Minghua Ma , Shenglin Zhang , Yongqian Sun , Qingwei Lin , Yuzhi Zhang , Dan Pei

Root cause analysis in modern cloud infrastructure demands sophisticated understanding of heterogeneous data sources, particularly time-series performance metrics that involve core failure signatures. While large language models demonstrate…

Artificial Intelligence · Computer Science 2026-01-09 Gijun Park

Cloud applications are increasingly shifting from large monolithic services, to complex graphs of loosely-coupled microservices. Despite their advantages, microservices also introduce cascading QoS violations in cloud applications, which…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-12-14 Yu Gan , Mingyu Liang , Sundar Dev , David Lo , Christina Delimitrou

Ensuring the reliability and user satisfaction of cloud services necessitates prompt anomaly detection followed by diagnosis. Existing techniques for anomaly detection focus solely on real-time detection, meaning that anomaly alerts are…

Software Engineering · Computer Science 2023-08-16 Cheryl Lee , Tianyi Yang , Zhuangbin Chen , Yuxin Su , Michael R. Lyu

Cloud applications are increasingly shifting from large monolithic services to complex graphs of loosely-coupled microservices. Despite the advantages of modularity and elasticity microservices offer, they also complicate cluster management…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-01-05 Yu Gan , Mingyu Liang , Sundar Dev , David Lo , Christina Delimitrou

In financial field, a robust software system is of vital importance to ensure the smooth operation of financial transactions. However, many financial corporations still depend on operators to identify and eliminate the system failures when…

Machine Learning · Computer Science 2019-12-20 Jingwen Wang , Jingxin Liu , Juntao Pu , Qinghong Yang , Zhongchen Miao , Jian Gao , You Song

Anomaly detecting as an important technical in cloud computing is applied to support smooth running of the cloud platform. Traditional detecting methods based on statistic, analysis, etc. lead to the high false-alarm rate due to…

Machine Learning · Computer Science 2019-01-29 Jing Zhang

Automation and computer intelligence to support complex human decisions becomes essential to manage large and distributed systems in the Cloud and IoT era. Understanding the root cause of an observed symptom in a complex system has been a…

Artificial Intelligence · Computer Science 2017-07-04 Marc Solé , Victor Muntés-Mulero , Annie Ibrahim Rana , Giovani Estrada

Postmortem analysis is essential in the management of incidents within cloud systems, which provides valuable insights to improve system's reliability and robustness. At CloudA, fault pattern profiling is performed during the postmortem…

Software Engineering · Computer Science 2024-02-28 Junjie Huang , Jinyang Liu , Zhuangbin Chen , Zhihan Jiang , Yichen LI , Jiazhen Gu , Cong Feng , Zengyin Yang , Yongqiang Yang , Michael R. Lyu

In the evolving IT landscape, stability and reliability of systems are essential, yet their growing complexity challenges DevOps teams in implementation and maintenance. Log analysis, a core element of AIOps, provides critical insights into…

Machine Learning · Computer Science 2025-09-11 Thorsten Wittkopp