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Subject:
From:
Stefan Schmid <[log in to unmask]>
Reply To:
Stefan Schmid <[log in to unmask]>
Date:
Fri, 26 Oct 2018 08:16:26 +0200
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Dear all,

 

I have an open PhD position in Network Algorithms at the University of
Vienna, see below and at:

https://tinyurl.com/y9plkw5b 

for more details.

 

The specific topic will depend on the interests and skills of the student,
and could revolve around e.g., self-adjusting networks, online graph
partitioning, graph embedding ("virtual network embedding"),
(semi-)oblivious routing, routing table compression, or self-stabilizing
algorithms. Similarly, the methodology will depend on the student and
includes graph algorithms, online algorithms, approximation algorithms,
learning algorithms, linear programming and randomized rounding, as well as
computer-generated algorithms. See below some example papers.

 

For an overview of our research group as well as publications, see
https://ct.cs.univie.ac.at/ and  <https://net.t-labs.tu-berlin.de/~stefan/>
https://net.t-labs.tu-berlin.de/~stefan/ .

 

Please forward to interested students and do not hesitate to contact me for
more information!

 

Many thanks and kind regards,

Stefan

 

Synopsis:

 

In contrast to traditional communication networks which rely on proprietary
algorithms and "blackbox" hardware, modern networks support numerous
algorithmic optimizations: in terms of routing, traffic engineering, medium
access, queuing, etc. become "programmable" and "software-defined".
Companies like Google exploit these optimization opportunities, e.g., to
efficiently schedule big data transfers across their wide-area network. Many
companies also exploit these optimization opportunities to allocate flows in
a datacenter network more efficiently and, e.g., reduce latency or job
completion time. As datacenter networks are typically also highly
virtualized, additional optimization opportunities arise: for example it is
possible to flexibly place or even migrate communication endpoints (virtual
machines or containers), to reduce communication costs (keywords: "resource
allocation" and "virtual network embedding"). Recently, it has even become
possible to change the physical network topology over time, enabling
"demand-aware networks" whose topology is optimized toward the traffic
pattern or workload they serve, and introducing novel "network design"
problems (keyword: self-adjusting networks). 

Yet, the algorithmic problems underlying modern communication networks,
while practically very relevant, are not well understood today. We hence are
looking for a PhD student ("pre-doc"/"Doktorand(in)") with a strong
background and interest in algorithms (in particular, graph algorithms,
approximation algorithms, randomized algorithms, distributed algorithms,
dynamic programming, linear programming etc.). The goal of our research is
to lay the algorithmic foundations of modern communication networks, e.g.,
in areas such as routing, scheduling, clustering, and network design. It is
expected that the PhD student contributes to the modelling, algorithm
design, optimization, and formal analysis (e.g., proofs of correctness and
performance) for such networks.

 

Some related publications:

 

 
<http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=7066977&url=http%3A%2
F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D7066977> SplayNet:
Towards Locally Self-Adjusting Networks
Stefan Schmid, Chen Avin, Christian Scheideler, Michael Borokhovich,
Bernhard Haeupler, and Zvi Lotker.
IEEE/ACM Transactions on Networking (TON), Volume 24, Issue 3, 2016.
Documents: paper  <https://net.t-labs.tu-berlin.de/~stefan/ton15splay.pdf>
pdf, bibtex  <https://net.t-labs.tu-berlin.de/~stefan/stefan_schmid-all.bib>
bib

 

 <https://net.t-labs.tu-berlin.de/~stefan/disc16repartition.pdf> Online
Balanced Repartitioning
Chen Avin, Andreas Loukas, Maciej Pacut, and Stefan Schmid.
30th International Symposium on Distributed Computing (DISC), Paris, France,
September 2016.
Documents: paper
<https://net.t-labs.tu-berlin.de/~stefan/disc16repartition.pdf> pdf, slides
<https://net.t-labs.tu-berlin.de/~stefan/disc16repartition-slides.pdf> pdf,
bibtex  <https://net.t-labs.tu-berlin.de/~stefan/stefan_schmid-all.bib> bib

 

 <https://net.t-labs.tu-berlin.de/~stefan/disc17.pdf> Demand-Aware Network
Designs of Bounded Degree
Chen Avin, Kaushik Mondal, and Stefan Schmid.
31st International Symposium on Distributed Computing (DISC), Vienna,
Austria, October 2017.
Documents: paper  <https://net.t-labs.tu-berlin.de/~stefan/disc17.pdf> pdf,
slides  <https://net.t-labs.tu-berlin.de/~stefan/disc17slides.pdf> pdf,
bibtex  <https://net.t-labs.tu-berlin.de/~stefan/stefan_schmid-all.bib> bib

 

 <https://net.t-labs.tu-berlin.de/~stefan/icalp18.pdf> Congestion-Free
Rerouting of Flows on DAGs
Saeed Akhoondian Amiri, Szymon Dudycz, Stefan Schmid, and Sebastian
Wiederrecht.
45th International Colloquium on Automata, Languages, and Programming
(ICALP), Prague, Czech Republic, July 2018.
Documents: paper  <https://net.t-labs.tu-berlin.de/~stefan/icalp18.pdf> pdf,
bibtex  <https://net.t-labs.tu-berlin.de/~stefan/stefan_schmid-all.bib> bib

 

 

Link to apply:
https://univis.univie.ac.at/ausschreibungstellensuche/flow/bew_ausschreibung
-flow?_flowExecutionKey=_cE64C9E85-DB7C-FACB-B491-830B066F39DF_k8A2068DA-083
6-BB8F-4BAD-58B13A83CE1B
<https://univis.univie.ac.at/ausschreibungstellensuche/flow/bew_ausschreibun
g-flow?_flowExecutionKey=_cE64C9E85-DB7C-FACB-B491-830B066F39DF_k8A2068DA-08
36-BB8F-4BAD-58B13A83CE1B&tid=70132.28> &tid=70132.28 

 

 

--

 

Stefan Schmid

Professor, Computer Science

University of Vienna, Austria

 <http://cs.univie.ac.at/ct/news/> http://cs.univie.ac.at/ct/news/

 <https://net.t-labs.tu-berlin.de/~stefan/>
https://net.t-labs.tu-berlin.de/~stefan/

 



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