caa a22 4500 445296984 CHVBK 20180317142545.0 cr unu---uuuuu 170323e20100201xx s 000 0 eng 10.1007/s12243-009-0148-4 doi (NATIONALLICENCE)springer-10.1007/s12243-009-0148-4 Towards real-time anomalies monitoring for QoE indicators [Elektronische Daten] [Frédéric Guyard, Sergio Beker] Anomaly detection and characterization is a main topic for network managers. Although quality-of-service (QoS) indicators can help to infer problem occurrence, they do not provide immediate insight on the user's perceived quality. Evolved service-level agreements (SLA) will likely be established in terms of quality of experience (QoE) indicators. QoS metrics composing the QoE indicators need to be monitored on a real-time basis by the SLA management tools in order to detect anomalies driving to contract violations. Monitoring SLA contracts may involve the surveillance of individual application sessions for several users. In this work, we address the problem of anomaly detection with impact on a relatively large number of users, either on one or on several types of applications simultaneously. We propose a method to characterize the state of the network, representing QoE indicators as time series and reducing the dimension of the data set. The singular spectrum analysis (SSA) method, using a combination of geometric and statistical methods, is proposed as an analysis tool in order to detect anomalies on QoE indicator evolution. Institut TELECOM and Springer-Verlag, 2009 Anomaly detection nationallicence QoE indicators nationallicence Singular spectrum analysis nationallicence Guyard Frédéric FTRD/OrangeLabs, 905 rue Albert Einstein, 06921, Sophia-Antipolis, France aut Beker Sergio FTRD/OrangeLabs, 905 rue Albert Einstein, 06921, Sophia-Antipolis, France aut annals of telecommunications - annales des télécommunications Springer-Verlag 65/1-2(2010-02-01), 59-71 0003-4347 65:1-2<59 2010 65 12243 https://doi.org/10.1007/s12243-009-0148-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12243-009-0148-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Guyard Frédéric FTRD/OrangeLabs, 905 rue Albert Einstein, 06921, Sophia-Antipolis, France aut NATIONALLICENCE 700 1- Beker Sergio FTRD/OrangeLabs, 905 rue Albert Einstein, 06921, Sophia-Antipolis, France aut NATIONALLICENCE 773 0- annals of telecommunications - annales des télécommunications Springer-Verlag 65/1-2(2010-02-01), 59-71 0003-4347 65:1-2<59 2010 65 12243 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer