Cargando…

Enhancing likelihood distribution with the DNNLikelihood framework

<!--HTML-->The DNNLikelihood framework is presented and its main features discussed. Such framework encodes the experimental likelihood functions in deep neural networks and allows for a lightweight and platform-independent distribution of physics results through the ONNX model format. The pro...

Descripción completa

Detalles Bibliográficos
Autor principal: Coccaro, Andrea
Lenguaje:eng
Publicado: 2021
Materias:
Acceso en línea:http://cds.cern.ch/record/2752547
_version_ 1780969285672239104
author Coccaro, Andrea
author_facet Coccaro, Andrea
author_sort Coccaro, Andrea
collection CERN
description <!--HTML-->The DNNLikelihood framework is presented and its main features discussed. Such framework encodes the experimental likelihood functions in deep neural networks and allows for a lightweight and platform-independent distribution of physics results through the ONNX model format. The procedure retains the full experimental information and does not rely neither on Gaussian approximation nor on dimensionality reduction and is applicable to both binned and un-binned likelihood functions. The distributed DNNLikelihood could be adopted for various use cases, such as re-sampling through Markov Chain MC techniques, combinations with other likelihood functions with proper treatments of correlations and re-interpretation with different statistical approaches. The presentation will be followed by a hands-on tutorial for illustrating the whole procedure with a pseudo-experiment corresponding to a realist LHC search for new physics.
id cern-2752547
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2021
record_format invenio
spelling cern-27525472022-11-02T22:36:00Zhttp://cds.cern.ch/record/2752547engCoccaro, AndreaEnhancing likelihood distribution with the DNNLikelihood framework(Re)interpreting the results of new physics searches at the LHCLPCC Workshops<!--HTML-->The DNNLikelihood framework is presented and its main features discussed. Such framework encodes the experimental likelihood functions in deep neural networks and allows for a lightweight and platform-independent distribution of physics results through the ONNX model format. The procedure retains the full experimental information and does not rely neither on Gaussian approximation nor on dimensionality reduction and is applicable to both binned and un-binned likelihood functions. The distributed DNNLikelihood could be adopted for various use cases, such as re-sampling through Markov Chain MC techniques, combinations with other likelihood functions with proper treatments of correlations and re-interpretation with different statistical approaches. The presentation will be followed by a hands-on tutorial for illustrating the whole procedure with a pseudo-experiment corresponding to a realist LHC search for new physics.oai:cds.cern.ch:27525472021
spellingShingle LPCC Workshops
Coccaro, Andrea
Enhancing likelihood distribution with the DNNLikelihood framework
title Enhancing likelihood distribution with the DNNLikelihood framework
title_full Enhancing likelihood distribution with the DNNLikelihood framework
title_fullStr Enhancing likelihood distribution with the DNNLikelihood framework
title_full_unstemmed Enhancing likelihood distribution with the DNNLikelihood framework
title_short Enhancing likelihood distribution with the DNNLikelihood framework
title_sort enhancing likelihood distribution with the dnnlikelihood framework
topic LPCC Workshops
url http://cds.cern.ch/record/2752547
work_keys_str_mv AT coccaroandrea enhancinglikelihooddistributionwiththednnlikelihoodframework
AT coccaroandrea reinterpretingtheresultsofnewphysicssearchesatthelhc