BEGIN:VCALENDAR
PRODID:-//eluceo/ical//2.0/EN
VERSION:2.0
CALSCALE:GREGORIAN
BEGIN:VEVENT
UID:www.tcs.tifr.res.in/event/733
DTSTAMP:20230914T125936Z
SUMMARY:Efficient Redundancy Techniques to Reduce Delay in Cloud Systems
DESCRIPTION:Speaker: Gauri Joshi (IBM T.J. Watson Research Center\n1101 Kit
 chawan Road\nYorktown Heights\nNew York\, NY 10598\nUnited States of Ameri
 ca)\n\nAbstract: \nEnsuring fast and seamless service to users is critical
  for today's cloud services. However\, guaranteeing fast response can be c
 hallenging due to random service delays that are common in today's data ce
 nters. In this talk I explore the use the redundancy to combat such servic
 e variability. For example\, replicating a computing task at multiple serv
 ers and then waiting for the earliest copy saves service time. But the red
 undant tasks can cost more computing resources and also delay subsequent t
 asks. I present a queueing-theoretic framework to answer fundamental quest
 ions such as:\n\nHow many replicas to launch?\nWhich queues to join?\nWhen
  to issue and cancel the replicas?\n\nThis framework reveals surprising re
 gimes where replication reduces both delay as well as resource cost. The t
 ask replication idea can also be generalized to analyze latency in conten
 t download from erasure coded storage. More broadly\, this work lays the t
 heoretical foundation for studying queues with redundancy\, uncovering man
 y interesting future directions in cloud infrastructure\, crowdsourcing an
 d beyond.\n\nBio: Gauri Joshi is a Research Staff Member at IBM T. J. W
 atson Research Center. She will be joining the Carnegie Mellon ECE departm
 ent as assistant professor in Fall 2017. Gauri completed a Ph.D from MIT E
 ECS in June 2016. Before coming to MIT\, she completed a B.Tech and M. Tec
 h in Electrical Engineering from the Indian Institute of Technology (IIT) 
 Bombay in 2010. Her awards and honors include the Best Thesis Prize in Co
 mputer science at MIT (2012)\, Institute Gold Medal of IIT Bombay (2010)\
 , Claude Shannon Research Assistantship (2015-16)\, and Schlumberger Facul
 ty for the Future fellowship (2011-2015).\n
URL:https://www.tcs.tifr.res.in/web/events/733
DTSTART;TZID=Asia/Kolkata:20161219T140000
DTEND;TZID=Asia/Kolkata:20161219T150000
LOCATION:A-201 (STCS Seminar Room)
END:VEVENT
END:VCALENDAR