Quotation Frühwirth, Rudolf, Eckstein, Korbinian, Frühwirth-Schnatter, Sylvia. 2016. Vertex finding by sparse model-based clustering. Journal of Physics: Conference Series, 762 (1),


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Abstract

The application of sparse model-based clustering to the problem of primary vertex finding is discussed. The observed z-positions of the charged primary tracks in a bunch crossing are modeled by a Gaussian mixture. The mixture parameters are estimated via Markov Chain Monte Carlo (MCMC). Sparsity is achieved by an appropriate prior on the mixture weights. The results are shown and compared to clustering by the expectation-maximization (EM) algorithm.

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Publication's profile

Status of publication Published
Affiliation WU
Type of publication Journal article
Journal Journal of Physics: Conference Series
Language English
Title Vertex finding by sparse model-based clustering
Volume 762
Number 1
Year 2016
Reviewed? Y
DOI http://dx.doi.org/10.1088/1742-6596/762/1/012055
Open Access Y

Associations

People
Frühwirth, Rudolf (Former researcher)
Frühwirth-Schnatter, Sylvia (Details)
External
Eckstein, Korbinian (Institute of High Energy Physics, Austrian Academy of Sciences, Austria)
Organization
Institute for Statistics and Mathematics IN (Details)
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