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IEICE TRANSACTIONS on Information

Impact of Censoring on Estimation of Flow Duration Distribution and Its Mitigation Using Kaplan-Meier-Based Method

Yuki SAKAI, Masato UCHIDA, Masato TSURU, Yuji OIE

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Summary :

A basic and inevitable problem in estimating flow duration distribution arises from "censoring" (i.e., cutting off) the observed flow duration because of a finite measurement period. We extended the Kaplan-Meier method, which is used in the survival analysis field, and applied it to recover information on the flow duration distribution that was lost due to censoring. We show that the flow duration distribution from a short period of actual traffic data with censoring that was estimated using a Kaplan-Meier-based method can approximate well the flow duration distribution calculated from a sufficiently long period of actual traffic data.

Publication
IEICE TRANSACTIONS on Information Vol.E92-D No.10 pp.1949-1952
Publication Date
2009/10/01
Publicized
Online ISSN
1745-1361
DOI
10.1587/transinf.E92.D.1949
Type of Manuscript
Special Section LETTER (Special Section on New Technologies and their Applications of the Internet)
Category
QoS and Quality Management

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