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Research Group "HEPHY - Fachbereich Algorithmen- und Softwareentwicklung"
(Univ.Doz. Dipl.-Ing. Dr.techn. Rudolf Frühwirth)

Head of the research group:
Last name:Frühwirth
First name(s):Rudolf
Title (leading):Univ.Doz. Dipl.-Ing. Dr.techn.
Institution:Austrian Academy of Sciences
Organizational unit:Institut für Hochenergiephysik (HEPHY)
Street address:Nikolsdorfer Gasse 18
Postal code:1050
Assignments to Research Areas:
Research area(s):
  • High Energy Physics
  • Nuclear and Particle Physics
Assignments to Fields of Work According to the Austrian System of Science Areas:
Field(s) of work:
  • High energy physics (103012)
Data Acquisition:
Date of the data acquisition:31.05.2012
Data acquisition period:from: 2007   up to including: 2011
Research Group at the Time of the Data Acquisition:
Scientific group members:
4 Persons
Rudolf Frühwirth
Moritz Nadler
Wolfgang Waltenberger
Jakob Lettenbichler
Full-time equivalents:3.75
Scientific Output in the Above Data Acquisition Period:
H-index of the group head:65
Number of publications:25
Five most important publications:
  1. R. Frühwirth, D.R. Mani and S. Pyne, "Clustering with position-specific constraints on variance: Applying redescending M-estimators to label-free LC-MS data analysis",
    BMC Bioinformatics 12 (2011) 358.
  2. Wolfgang Waltenberger, "RAVE: A detector-independent toolkit to reconstruct vertices",
    IEEE Trans.Nucl.Sci. 58 (2011) 434.
  3. M. Nadler and R. Frühwirth, "Estimation of the material budget from tracker data to improve the quality of the track fit",
    Nuclear Instruments and Methods A 648 (2011) 246.
  4. A. Strandlie, R. Frühwirth, "Track and Vertex Reconstruction: from Classical to Adaptive Methods",
    Rev. Mod. Phys. 82 (2010) 1419.
  5. W. Waltenberger, R. Frühwirth, P. Vanlear, "Adaptive vertex fitting",
    Journal of Physics G: Nucl. Part. Phys. 34 (2007) N343-N356.
  • Widl, Edmund, Viktor-Hess-Preis 2009 der Österreichischen Physikalischen Gesellschaft
    (Beste Dissertation auf dem Gebiet der Kern- und Teilchenphysik)
Five most important talks:
  1. M. Nadler: "Adaptive track reconstruction in the inner tracker of Belle II",
    International Conference on Computing in High Energy and Nuclear Physics (CHEP), New York, USA, May 2012
  2. W. Waltenberger: "CMS SUSY Searches - Interpretation in Terms of Simplified Models",
    Brookhaven Forum 2011: "A First Glimpse of the Tera Scale", Brookhaven, USA, October 2011
  3. R. Frühwirth: "Pattern recognition and estimation methods for track and vertex reconstruction",
    13th International Workshop on Advanced Computing0 and Analysis Techniques in Physics Research,
    Jaipur, India, January 2010
  4. W. Waltenberger: "CMS Perspectives on Topology-Based Approaches for Beyond the SM Searches",
    Workshop on topologies for early LHC searches, SLAC, Stanford, USA, September 2010
Projects and Funding Granted in the Above Data Acquisition Period:
Competitive projects:
  • FWF-Projekt P 24182-N16, Rekonstruktion von niederenergetischen Teilchen im Belle II Spurdetektor
Research Topics:
Current research topics:
  • Mustererkennung in Spurdetektoren für Belle II, CMS und ILD
  • Statistische Methoden der Spur- und Vertexrekonstruktion in Kollisionsexperimenten
  • Statistische Methoden in der Physikanalyse der CMS Daten
  • Detektoroptimierung
  • Detektoralignment
Future topics (next 5 years):
  • Spurrekonstruktion im Belle II-Siliziumvertexdetektor
  • Vertexrekonstruktion in Belle II
  • Spurrekonstruktion im ILD-Detektor
  • Triggersoftware für CMS
  • Physikanalyse in CMS
Teaching and Research Mobility in the Above Data Acquisition Period:
Doctor's theses:
1 doctor's thesis
  1. Edmund Widl: "Global Alignment of the CMS Tracker", Vienna University of Technology (2008)
Diploma and master theses:
1 thesis
  1. Silke Federmann: "Optimization of the Multivertexfitter for the CMS Inner Tracker",
    University of Vienna (2009)
International networking:
  • Adaptive methods for track and vertex reconstruction (collaboration with University College Gjøvik, Norway)
  • Mixture models for generalized linear models (collaboration with Johannes-Kepler Universität Linz, Österreich)
  • Clustering of peptides (collaboration with Broad Institute of Harvard and MIT, USA)
  • Track and vertex reconstruction software (collaboration with 4 institutes)
  • Alignment (collaboration with 2 institutes)
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