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Machine learning has helped advance the field of anomaly detection by incorporating classifiers and autoencoders to decipher between normal and anomalous behavior. Additionally, federated learning has provided a way for a global model to be…

Federated learning has enabled multiple parties to collaboratively train large language models without directly sharing their data (FedLLM). Following this training paradigm, the community has put massive efforts from diverse aspects…

Computation and Language · Computer Science 2024-06-10 Rui Ye , Rui Ge , Xinyu Zhu , Jingyi Chai , Yaxin Du , Yang Liu , Yanfeng Wang , Siheng Chen

Trustworthy federated learning aims to achieve optimal performance while ensuring clients' privacy. Existing privacy-preserving federated learning approaches are mostly tailored for image data, lacking applications for time series data,…

Machine Learning · Computer Science 2023-08-01 Chenxi Huang , Chaoyang Jiang , Zhenghua Chen

Anomaly detection plays a crucial role in various domains, from cybersecurity to industrial systems. However, traditional centralized approaches often encounter challenges related to data privacy. In this context, Federated Learning emerges…

Machine Learning · Computer Science 2024-07-08 Massimo Frasson , Dario Malchiodi

Several techniques for multivariate time series anomaly detection have been proposed recently, but a systematic comparison on a common set of datasets and metrics is lacking. This paper presents a systematic and comprehensive evaluation of…

Machine Learning · Computer Science 2021-09-24 Astha Garg , Wenyu Zhang , Jules Samaran , Savitha Ramasamy , Chuan-Sheng Foo

Recent advances in data collection technology, accompanied by the ever-rising volume and velocity of streaming data, underscore the vital need for time series analytics. In this regard, time-series anomaly detection has been an important…

Machine Learning · Computer Science 2024-12-31 Paul Boniol , Qinghua Liu , Mingyi Huang , Themis Palpanas , John Paparrizos

Time series anomaly detection has applications in a wide range of research fields and applications, including manufacturing and healthcare. The presence of anomalies can indicate novel or unexpected events, such as production faults, system…

Machine Learning · Computer Science 2024-09-04 Zahra Zamanzadeh Darban , Geoffrey I. Webb , Shirui Pan , Charu C. Aggarwal , Mahsa Salehi

Over the past few years, Federated Learning (FL) has become an emerging machine learning technique to tackle data privacy challenges through collaborative training. In the Federated Learning algorithm, the clients submit a locally trained…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-22 Tiantian Feng , Digbalay Bose , Tuo Zhang , Rajat Hebbar , Anil Ramakrishna , Rahul Gupta , Mi Zhang , Salman Avestimehr , Shrikanth Narayanan

Machine learning models used for distributed architectures consisting of servers and clients require large amounts of data to achieve high accuracy. Data obtained from clients are collected on a central server for model training. However,…

Cryptography and Security · Computer Science 2025-09-18 Ozer Ozturk , Busra Buyuktanir , Gozde Karatas Baydogmus , Kazim Yildiz

Multivariate Time Series (MVTS) anomaly detection is a long-standing and challenging research topic that has attracted tremendous research effort from both industry and academia recently. However, a careful study of the literature makes us…

Machine Learning · Computer Science 2023-11-02 Mohamed El Amine Sehili , Zonghua Zhang

Recommender systems have shown to be a successful representative of how data availability can ease our everyday digital life. However, data privacy is one of the most prominent concerns in the digital era. After several data breaches and…

Information Retrieval · Computer Science 2021-01-21 Vito Walter Anelli , Yashar Deldjoo , Tommaso Di Noia , Antonio Ferrara , Fedelucio Narducci

Time series anomaly detection is a vital task in many domains, including patient monitoring in healthcare, forecasting in finance, and predictive maintenance in energy industries. This has led to a proliferation of anomaly detection…

Machine Learning · Computer Science 2024-11-26 Sarah Alnegheimish , Laure Berti-Equille , Kalyan Veeramachaneni

Federated learning is a privacy-preserving machine learning technique that learns a shared model across decentralized clients. It can alleviate privacy concerns of personal re-identification, an important computer vision task. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Weiming Zhuang , Yonggang Wen , Xuesen Zhang , Xin Gan , Daiying Yin , Dongzhan Zhou , Shuai Zhang , Shuai Yi

In the growing world of artificial intelligence, federated learning is a distributed learning framework enhanced to preserve the privacy of individuals' data. Federated learning lays the groundwork for collaborative research in areas where…

Machine Learning · Computer Science 2023-11-21 Elaheh Jafarigol , Theodore Trafalis , Talayeh Razzaghi , Mona Zamankhani

One of the main goals of financial institutions (FIs) today is combating fraud and financial crime. To this end, FIs use sophisticated machine-learning models trained using data collected from their customers. The output of machine learning…

Distributed time series data presents a challenge for federated learning, as clients often possess different feature sets and have misaligned time steps. Existing federated time series models are limited by the assumption of perfect…

Machine Learning · Computer Science 2025-08-15 Zhi Wen Soi , Chenrui Fan , Aditya Shankar , Abele Mălan , Lydia Y. Chen

Time series anomaly detection plays a vital role in a wide range of applications. Existing methods require training one specific model for each dataset, which exhibits limited generalization capability across different target datasets,…

Machine Learning · Computer Science 2025-03-04 Qichao Shentu , Beibu Li , Kai Zhao , Yang Shu , Zhongwen Rao , Lujia Pan , Bin Yang , Chenjuan Guo

The anomaly detection of time series is a hotspot of time series data mining. The own characteristics of different anomaly detectors determine the abnormal data that they are good at. There is no detector can be optimizing in all types of…

Machine Learning · Statistics 2019-07-19 Hui Ye , Xiaopeng Ma , Qingfeng Pan , Huaqiang Fang , Hang Xiang , Tongzhen Shao

Time series anomalies can offer information relevant to critical situations facing various fields, from finance and aerospace to the IT, security, and medical domains. However, detecting anomalies in time series data is particularly…

Machine Learning · Computer Science 2020-11-17 Alexander Geiger , Dongyu Liu , Sarah Alnegheimish , Alfredo Cuesta-Infante , Kalyan Veeramachaneni

Industry 4.0 has brought numerous advantages, such as increasing productivity through automation. However, it also presents major cybersecurity issues such as cyberattacks affecting industrial processes. Federated Learning (FL) combined…