Present
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Giuseppe Cerati, Vito Di Benedetto, Lynn Garren, Thomas Junk, Guilherme Lima, Gianluca Petrillo, Erica Snider, Hans Wenzel
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Remote
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Erin Conley, Katherine Lato, Tracy Usher
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Hall of infamy
(“sorry I'm late”)
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Lorena Escudero, Robert Hatcher, Robert Kutchske, Gleb Sinev
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Project status report [Erica Snider]
- minutes of these meetings are collected in https://larsoft.org
- "new" version of Geant4 is available: are we interested?
- [Hans Wenzel] 4.10.4 would allow to select physics lists (see release notes!)
- script contributed by Robert Hatcher to solve linker errors of "undefined symbol"
- [Thomas Junk] I wrote a silimar script and ended up not using it because I would miss the translation from the library path into the directive to be actually written in the
CMakeLists.txt
Conclusions
- request for comments on the proposal of upgrading to Geant4 10.4
- will add directions on how to translate a library path into a library name for
CMakeLists.txt
Using proxies to access associated data [Giuseppe Cerati]
- proxies are helper classes designed to facilitate access to connected data products
- [Erica Snider] why proxy of proxies is not supported? [A] it is a limitation of the current design, that the author is willing to revisit once C++17 standard is available for LArSoft
- [Robert Kutschke] is the association proxy using Saba Serish tools? [A] no, because a different type of view is needed
- recommending to use proxies for tracks, which will make the code more stable with respect to the planned track interface changes
- [Robert Kutschke] could proxy satisfy the needs for description of multiple interactions? [A] after some discussion, it seems LArSoft is "one data product away" from having a solution; in the current state, there is no facility to describe that
SVM-based track/shower identification in Pandora [Lorena Escudero]
- discrimination of tracks and showers was added in June 2017, based on a machine learning technique
- updated to classify a particle flow element (3D) rather than the single clusters
- [Gianluca Petrillo] what does an experiment need to train the discriminant? [A] there is an option for that, and lot of documentation in Pandora site (in GitHub)
- [Gianluca Petrillo] would adding a reliable charge from induction planes improve the performance? [A] the performance is quite good already; an improvement from induction planes is not excluded but a test is needed to actually know
Conclusions
- no objection against the integration of the feature branch
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