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Communication Dans Un Congrès Année : 2019

Poster Abstract: A flexible infinite HMM model for accurate characterization and segmentation of RTT timeseries

Résumé

The study of round-trip time (RTT) measurements on the Internet is of particular importance for improving real-time applications, enforcing QoS with traffic engineering, or detecting unexpected network conditions. On large timescales, from 1 hour to several days, RTT measurements exhibit characteristic patterns due to inter and intra-AS routing changes and traffic engineering, in addition to link congestion. We propose the use of a nonparametric Bayesian method to fully estimate HMM parameters from delay observations, including the number of states. We validate the model through three applications: the clustering of RIPE Atlas measurements, the detection of significant delay changes, and the reduction of the monitoring cost in routing overlays using Markov decision processes.
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Dates et versions

hal-02300968 , version 1 (30-09-2019)

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Maxime Mouchet, Sandrine Vaton, Thierry Chonavel. Poster Abstract: A flexible infinite HMM model for accurate characterization and segmentation of RTT timeseries. IEEE INFOCOM 2019 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), Apr 2019, Paris, France. pp.1055-1056, ⟨10.1109/INFCOMW.2019.8845296⟩. ⟨hal-02300968⟩
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