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[stem-dev] Vote for Committer status for Christian Thoens was started by James Kaufman

technology.stem Committers,
This automatically generated message signals that James Kaufman has
nominated Christian Thoens as a Committer on the technology.stem project.
The reason given is as follows:

Chris has made several very important contributions since joining the STEM
project. In one of his firsst contributions, he implemented an improved
finite difference solver that prevents overshoots in model integraion
(summation) by varing the time step size. This is like a light weight RKKF
that dynamically adjust times just to prevent impossible (non-physical) 
disease states.
https://bugs.eclipse.org/bugs/show_bug.cgi?id=346732

Chris then went on to fully implemented major new STEM feature: A Multi
Population Model and Framework in which People (and groups) are aging.
Previously we demographic population age groups did not age. This is a
rather complex mathematical problem to solve correctly and self
consistently. Chris also implemented a full set of integration and JUnit
tests for his new contribution.
https://bugs.eclipse.org/bugs/show_bug.cgi?id=345353


Chris found that several core STEM classes were not modeled in EMF. To
model these classes in EMF several adaptations had to be made Integration
of IntegrationLabel and IntegrationLabelValue EMF models
Emf models of disease and population labels were updated
logger had to be changed to prevent logging of "arrivals" and "departures"
(states internal to the computation only).
IntegrationDecorator and SanityChecker were modeled in EMF
https://bugs.eclipse.org/bugs/show_bug.cgi?id=347873

Chris also found and fixed a bug when a disease model label is created for
a population group, the fraction is not used to set initial value in the
reset method in StandardDiseaseModelLabelImpl. The disease compartments
were not initialized with the right numbers when multipopulation models
were used.
https://bugs.eclipse.org/bugs/show_bug.cgi?id=347091


The vote is being held via the MyFoundation portal: voters *must* use the
portal for the votes to be properly recorded.  The voting will continue
until either all 8 existing Committers have voted or until they have been
given enough time to vote, even if they do not do so (defined as at least
one week). Christian Thoens must receive at least three +1s and no -1s for
a successful election.

Eligible Committers must cast their votes through their My Foundation
portal page (do NOT just reply to this email; your vote will not be
correctly recorded unless you use the portal):

    http://portal.eclipse.org/

The project Committers eligible to vote are:

    Matthew  Davis
    Stefan Edlund
    Daniel Ford
    James Kaufman
    Yossi Mesika
    Dirk Reuter
    Armin Weiser
    Jan-Frederik Wigger

*NOTE*: Successful elections are left open for a maximum of 120 days to
allow for processing of paperwork.  After that time the election will be
expired, regardless of its current status.  Should papework processing on
the part of the candidate take more time than allowed, a new election will
have to be held.

If you have any questions, please do not hesitate to contact your project
lead, PMC member, or the EMO <emo@xxxxxxxxxxx>



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