[Nets-seminars] TODAY, 11 AM: UCL CS Distinguished Lecture: Prof Srini Seshan, CMU CS

Brad Karp bkarp at cs.ucl.ac.uk
Wed Jul 6 10:26:57 BST 2016


Final reminder: this UCL CS Distinguished Lecture is TODAY at 11 AM.
Srini Seshan of CMU is a renowned networking researcher; please join us!

Details below.

See you there,
-Brad, bkarp at cs.ucl.ac.uk

----- Original message -----
From: Brad Karp <bkarp at cs.ucl.ac.uk>
To: research at cs.ucl.ac.uk, nets at cs.ucl.ac.uk, nets-seminars at cs.ucl.ac.uk
Subject: UCL CS Distinguished Lecture: Prof Srini Seshan, CMU CS, Wed 6
Jul, 11 AM
Date: Tue, 05 Jul 2016 01:25:53 +0100

Greetings, everyone.

It's my great pleasure to announce a UCL CS Distinguished Lecture by
Professor Srini Seshan of Carnegie Mellon University's Computer Science
Department. Srini will give a talk on an extremely timely and important
topic (given the ascendancy of video as the dominant category of traffic
carried by the Internet): how best to deliver streaming video over the
Internet in a fashion that provides the best user experience (e.g., in
video quality and low latency for the start of a video stream) while
using Internet Service Providers' and content providers' resources
efficiently.

Srini is widely renowned for his distinguished track record of research
on topics including mobile computing, wireless networks, and Internet
performance.

All are warmly welcome and most strongly encouraged to attend! Title,
abstract, and bio follow.

See you there,
-Brad, bkarp at cs.ucl.ac.uk

---

UCL CS Distinguished Lecture

Speaker:

  Professor Srini Seshan, CMU CS
  http://www.cs.cmu.edu/~srini/

Time and location:

  Wednesday 6th July, 11 AM
  Medawar Watson Lecture Theatre

Title:

  Understanding and Improving Internet Video Quality

Abstract:

The song "Video Killed the Radio Star" was the first music video shown
on MTV and heralded the shift of music and entertainment to the medium
of cable television. Multimedia is currently undergoing a similar shift
to Internet-connected digital devices. Cisco estimates that video will
be 82 percent of all consumer Internet traffic by 2020. However, while
there are headlines such as "Internet TV and The Death of Cable TV,
Really" that foretell this change, there are also many such as "Will
Netflix Destroy the Internet?" that highlight the technological risks
associated with this shift.

The growing dominance of video makes optimizing its delivery especially
critical to both user satisfaction and overall Internet efficiency.
However, the task of improving video delivery is complicated by multiple
factors. First, it is surprisingly difficult to even compare the
delivery of different video streams and state that one is better than
the other. The reason is that there are a large number of factors (e.g.
bandwidth, buffering, resolution, frame rate, encoding, and playback
start-up delay) that impact user perception of video delivery quality.
Second, the delivery infrastructure for Internet video has become highly
complex to scale with demand. Optimizing delivery requires novel control
plane mechanisms to manage resources in this infrastructure despite node
failures, large wide-area network latencies, and frequent changes in
demand. In this talk, I will describe our work on developing an Internet
video quality of experience (QoE) model and our work on managing CDN
resources to maximize the quality of live video stream delivery. 



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