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BEGIN:VEVENT
UID:119@lincs.fr
DTSTART;TZID=Europe/Paris:20141119T140000
DTEND;TZID=Europe/Paris:20141119T150000
DTSTAMP:20170313T171207Z
URL:https://www.lincs.fr/events/3259/
SUMMARY:Catalog Dynamics: Impact of Content Publishing and Perishing on the
 Performance of a LRU Cache
DESCRIPTION:\n\n\n:\nThe Internet heavily relies on Content Distribution
 Networks and transparent caches to cope with the ever-increasing traffic
 demand of users. Content\, however\, is essentially versatile: once
 published at a given time\, its popularity vanishes over time. All requests
 for a given document are then concentrated between the publishing time and
 an effective perishing time. In this paper\, we propose a new model for the
 arrival of content requests\, which takes into account the dynamical nature
 of the content catalog. Based on two large traffic traces collected on the
 Orange network\, we use the semi-experimental method and determine
 invariants of the content request process. This allows us to define a
 simple mathematical model for content requests\; by extending the so-called
 Che approximation\, we then compute the performance of a LRU cache fed with
 such a request process\, expressed by its hit ratio. We numerically
 validate the good accuracy of our model by comparison to trace-based
 simulation. Joint work with Felipe Olmos\, Alain Simonian and Yannick
 Carlinet\n\n\n\n&nbsp\;
CATEGORIES:Seminars
LOCATION:LINCS Meeting Room 40\, 23\, avenue d'Italie\, Paris\, 75013\,
 France
GEO:48.8283983;2.3568972000000485
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 40:geo:48.8283983,2.3568972000000485
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TZID:Europe/Paris
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DTSTART:20141026T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
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