Statistical classification techniques in high energy physics (SDDT algorithm)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F16%3A00304798" target="_blank" >RIV/68407700:21340/16:00304798 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/1742-6596/738/1/012034" target="_blank" >http://iopscience.iop.org/1742-6596/738/1/012034</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/738/1/012034" target="_blank" >10.1088/1742-6596/738/1/012034</a>
Alternative languages
Result language
angličtina
Original language name
Statistical classification techniques in high energy physics (SDDT algorithm)
Original language description
We present our proposal of the supervised binary divergence decision tree with nested separation method based on the generalized linear models. A key insight we provide is the clustering driven only by a few selected physical variables. The proper selection consists of the variables achieving the maximal divergence measure between two different classes. Further, we apply our method to Monte Carlo simulations of physics processes corresponding to a data sample of top quark-antiquark pair candidate events in the lepton+jets decay channel. The data sample is produced in pp collisions at root S = 1.96 TeV. It corresponds to an integrated luminosity of 9.7 fb-1 recorded with the D0 detector during Run II of the Fermilab Tevatron Collider. The efficiency of our algorithm achieves 90% AUC in separating signal from background. We also briefly deal with the modification of statistical tests applicable to weighted data sets in order to test homogeneity of the Monte Carlo simulations and measured data. The justification of these modified tests is proposed through the divergence tests.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10103 - Statistics and probability
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Journal of Physics: Conference Series
ISBN
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ISSN
1742-6588
e-ISSN
1742-6588
Number of pages
5
Pages from-to
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Publisher name
IOP Publishing Ltd.
Place of publication
Bristol
Event location
Athens
Event date
May 23, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000403403900034