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minutes of meeting 2004-05-03 [message #85 is a reply to message #30] Tue, 04 May 2004 10:09 Go to previous messageGo to previous message
Messages: 80
Registered: January 2004
9:04 AM 5/3/2004
Steve Aplin, Frank Gaede, Harald Vogt, Tony Johnson, Ron Cassell, Norman Graf

Agenda LCIO meeting May 3 2004

1) Status and new developments

2) proposed developments

a) LCRelation - generic, weighted relation between
LCObjects ( e.g. to be used to link to MC truth )

b) additional methods for fast MC:


3) release plans

4) other issues

HV: No progress on fortran implementation, busy working on SimDet, etc.
TJ: No progress, but this week blocked off.
aim to have Java implementation done for ANL workshop, but
hope to have good start this week.

FG: News from LCWS04 is good, many groups using
or planning to use LCIO.
No concrete feedback on reconstruction model.
Emphasize that model is beta.
Mokka still missing MC particle link in LCIO.
RC: reminder that MC status word still needs to
be implemented for LCIO.
FG: will work on it this week.

FG: introduce concept of LCRelation.
used to link between objects, e.g. raw to processed hit
or raw to MC particle.
BaBar uses something similar. (MCTruthAssociation?)
TJ: SLD had something like this as well.
FG: the relation object is untyped, currently uses std::multimap.
TJ: WOuld like to hide specific implementation from the final user, who
would like to be able to get these links in a
transparent way.

see ta/doc/doxygen_api/html/LCRelation_8h-source.html

TJ: would like to look at this in more detail. is there an example yet?
FG: see

TJ: SLD used something like this to associate tracks to vertices,
so concept is useful.

FG: fastMC has no explicit hits or clusters, so need some way to
associate tracks to MC particles.

TJ: will look at and consider Java implementation.

FG: Torsten Kuhl, doing some b-tagging jet analysis using fastMC, would
like some convenience methods along the lines of those proposed.
NG: Seems too specific. Let's think about how to abstract this
and make it more general.

3.) targetting ANL workshop.

TJ: as we get close, we will have to decide whether the workshop will
be used to decide on these issues, or whether we will have something
finished by then. In any case, we should have a release candidate
which represents our group's thinking.


TJ: setting up new enterprise version of bug checking system.
propose moving lcio bug database from freehep to this new system
this week. History should be preserved.

HV: can stop work on SimDet and Brahms, and will concentrate on Fortran
implementation of reconstructed partucle. Should be straightforward.

Meet again Monday May 10, 9AM PDT.
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