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<font face="Trebuchet MS">Dear Colleague<br>
<br>
I would like to propose a position of PhD student (</font><span
id="result_box" class="short_text" lang="en"><span
title="Cliquer ici pour voir d'autres traductions" class="hps">French</span>
<span title="Cliquer ici pour voir d'autres traductions" class="hps">government
funding</span></span><font face="Trebuchet MS">) <br>
in my team: Foreign applicants (english speaking) will be given
preference in<br>
case of equal qualifications.<br>
<br>
Could you please use your mailing lists to help me to find<br>
the good one.<br>
<br>
Prof. JC LAPAYRE<br>
<br>
////////////<br>
</font>Please consider the following call concerning an open PhD
position<font face="Trebuchet MS"> (</font><span id="result_box"
class="short_text" lang="en"><span
title="Cliquer ici pour voir d'autres traductions" class="hps">French</span>
<span title="Cliquer ici pour voir d'autres traductions" class="hps"><br>
government funding</span></span><font face="Trebuchet MS">)<br>
<br>
</font>- - - - - - - - - - - - - - - - - - - - - - - -
<br>
[Apologies if you receive multiple copies of this message]
<br>
<br>
<font face="Trebuchet MS">" Ontologies and traceability for medical
image processing "</font><br>
<font face="Trebuchet MS">Franche-Comte </font><font
face="Trebuchet MS">University - BESANCON - FRANCE<br>
<a class="moz-txt-link-freetext"
href="http://www.besac.com/besancon_visite_virtuelle/index.php">http://www.besac.com/besancon_visite_virtuelle/index.php</a><br>
<a class="moz-txt-link-freetext"
href="http://www.franc-comtois.fr/article-besancon-sous-la-neige-42776237.html">http://www.franc-comtois.fr/article-besancon-sous-la-neige-42776237.html</a><br>
<br>
contact: </font><font face="Trebuchet MS"><a
class="moz-txt-link-abbreviated"
href="mailto:jean-christophe.lapayre@univ-fcomte.fr">jean-christophe.lapayre@univ-fcomte.fr</a></font><br>
<font face="Trebuchet MS"><br>
PhD Proposal (3 years French government funding) <br>
" Ontologies and traceability for medical image processing "<br>
<br>
Student Profile<br>
The field of this research is wide enough for distributed systems and <br>
medical information systems. The PhD student can have a master’s degree
<br>
in one of the following domains : information systems, distributed
systems <br>
or medical informatics. Within our research team we propose solutions <br>
focused either on distributed systems or information systems or
ontology <br>
technologies.<br>
<br>
<br>
Research Context<br>
The primary domain of this work is CSCW. The aim of Computer Supported<br>
Cooperative Work (CSCW) is to allow users working together on a single
task <br>
in shared environment called the production area. Shared objects are
managed <br>
in the production area and users need to modify shared objects
concurrently. Users <br>
need to have the same view on all shared objects. Thus, concurrency
management <br>
protocols have to be implemented for CSCW applications ([Elmarzouqi
2008]. This <br>
kind of applications are used in various ways such as distant learning,
remote maintenance <br>
and even telemedicine. The CARTOON (Collaborative Architecture
Distributed Algorithm <br>
Optimization and Network) Group at the LIFC (Franche-Comte Computer
Science Lab., <br>
France) has gained a good experience with collaboration management for
medical <br>
e-diagnosis : the TeNeCi project (Collaborative Teleneurology, 2006)
and the Decopreme <br>
project (Precocious Collaborative Screening of Melanomas, 2007) are
parts of the European <br>
InterReg program in collaboration with swiss partners (Vaud University
Hospital at Lausanne, <br>
and EPFL Lausanne).<br>
For synchronous distributed applications, the system must ensure data
consistency. <br>
In our research team we have proposed (and proved) different
consistency protocols such <br>
as the Pilgrim algorithm or the Chameleon algorithm [Garcia2005].<br>
It is also necessary, in addition to consistency, to ensure fault
tolerance in the context of <br>
mobility: i.e. the untimely connections/disconnections of nodes require
reliable solutions <br>
to trace operations. Thus, access sequences can be "replayed" to join a
state of consistency. <br>
Traceability of such applications can be very expensive quickly, and
generate large amounts <br>
of data (on the one hand because of the great amount of data but also
because of distribution). <br>
In this context it is important to use new methods to optimize the
reconstruction of the <br>
context following failure. Traceability, in particular with the notion
of CORPUS has been studied <br>
in a learning context in e-learning [Reffay09].<br>
On the one hand we limit this early research in medical image
manipulation, focusing the work <br>
on traces (like image watermarking [Kallel2010]), and on the other hand
on optimizing the <br>
use of these traces (i.e. using methods based on the ontology
[Jin2009]).<br>
<br>
Expected Work Program<br>
In the first phase, the goal of this work it is to study the state of
the art of traceability in <br>
distributed applications: would CORPUS be an acceptable and effective
solution? In the medical <br>
context it should be interesting too to study the specificities in
terms of security and fault tolerance.<br>
In the second phase, focusing on discrete media such as text and
images, this research will propose <br>
new methods of marking allowing to trace concurrent synchronous
accesses on this type of media. <br>
Especially for medical images, the large number of images and the large
number of manipulations on <br>
these images require the use of effective methods from data mining
and/or ontologies domains.<br>
Finally, based on the results of the first two phases (and depending on
the student profile), the work <br>
will be oriented either on trace aspects, consistency of traceability
(distributed systems domain) or <br>
on ontology and CORPUS (information systems domain).<br>
</font><font face="Trebuchet MS"><br>
Supervision<br>
50% Jean-Christophe Lapayre, Professor
(<a class="moz-txt-link-abbreviated"
href="mailto:jean-christophe.lapayre@univ-fcomte.fr">jean-christophe.lapayre@univ-fcomte.fr</a>)<br>
50 % Marie-Laure Betbeder, Assistant-Professor</font><br>
<font face="Trebuchet MS"><br>
Bibliographie<br>
[Kallel2010] M. Kallel, M.-S. Bouhlel, and J.-C. Lapayre. Use of
Multi-Watermarking Schema to Maintain <br>
Awareness in a Teleneurology Diagnosis Platform. Radioengineering
journal, Vol. 19(1), p. 68--73, 2010.<br>
[Jin2009] H. Jin & al. Ontology-based semantic integration scheme
for medical image grid. International <br>
Journal of Grid and Utility Computing, Vol. 1(2), p. 86--97 2009.<br>
[Reffay09] C. Reffay and M.-L. Betbeder. Sharing corpora and tools to
improve interaction analysis. In <br>
EC-TEL, 4th European Conference on Technology Enhanced Learning, volume
5794 of LNCS, p. 196--210, <br>
Oct. 2009.<br>
[Elmarzouqi08] Nabil Elmarzouqi, Eric Garcia, and Jean-Christophe
Lapayre. CSCW from Coordination to <br>
Collaboration. In Revised/extended Papers from best CSCWD'07, Computer
Supported Cooperative Work <br>
in Design IV, LNCS Book, p. 87--98. Springer, 2008.<br>
[Garcia2005]Eric Garcia, Hervé Guyennet, Julien Henriet, and
Jean-Christophe Lapayre. Towards an <br>
Optimistic Management of Concurrency: a Probabilistic Study of the
Pilgrim Protocol. LNCS Book, <br>
Special issue on Computer Supported Cooperative Work in Design 2005,
3865:51--65, 2005.<br>
////////////<br>
<br>
</font>-- <br>
<hr size="3" width="480" align="left">
<pre class="moz-signature" cols="72">Jean-Christophe Lapayre - Professor
Distributed Systems Team
Synchronous Distributed Algorithms for Collaborative Systems</pre>
<hr size="1" width="480" align="left">
<pre class="moz-signature" cols="72">LIFC/EA 4269 - Computer Science Lab.
FEMTO-ST (as DISC) UMR CNRS 6174 from January 2012
Computer Science for Complex Systems Dept. (DISC)
16, route de Gray - 25030 Besançon Cedex
Tel : +33(0)3 81666456 - Sec.: +33(0)3 81666515
Fax : +33(0)3 81666450 - Mob.: +33(0)6 34352258
E-mail : <a class="moz-txt-link-abbreviated"
href="mailto:jean-christophe.lapayre@univ-fcomte.fr">jean-christophe.lapayre@univ-fcomte.fr</a>
Web : <a class="moz-txt-link-freetext" href="http://lifc.univ-fcomte.fr">http://lifc.univ-fcomte.fr</a> </pre>
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align="left">
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