Application of a Convolutional Neural Network for image classification to the analysis of collisions in High Energy Physics

The application of deep learning techniques using convolutional neural networks to the classification of particle collisions in High Energy Physics is explored. An intuitive approach to transform physical variables, like momenta of particles and jets, into a single image that captures the relevant information, is proposed. The idea is tested using a well known deep learning framework on a simulation dataset, including leptonic ttbar events and the corresponding background at 7 TeV from the CMS experiment at LHC, available as Open Data. This initial test shows competitive results when compared to more classical approaches, like those using feedforward neural networks.

[1]  Geoffrey E. Hinton,et al.  Deep Learning , 2015, Nature.

[2]  Marcelino B. Santos,et al.  CMS Physics Technical Design Report, Volume II: Physics Performance , 2007 .

[3]  Hermann Kolanoski,et al.  Application of Artificial Neural Networks in Particle Physics , 1995, ICANN.

[4]  João Paulo Teixeira,et al.  The CMS experiment at the CERN LHC , 2008 .

[5]  P. Baldi,et al.  Searching for exotic particles in high-energy physics with deep learning , 2014, Nature Communications.

[6]  B. Roe,et al.  Boosted decision trees as an alternative to artificial neural networks for particle identification , 2004, physics/0408124.

[7]  Jimmy Ba,et al.  Adam: A Method for Stochastic Optimization , 2014, ICLR.

[8]  Nitish Srivastava,et al.  Dropout: a simple way to prevent neural networks from overfitting , 2014, J. Mach. Learn. Res..

[9]  Ignacio Heredia Large-Scale Plant Classification with Deep Neural Networks , 2017, Conf. Computing Frontiers.

[10]  Geoffrey E. Hinton,et al.  Learning representations by back-propagating errors , 1986, Nature.

[11]  Michael S. Bernstein,et al.  ImageNet Large Scale Visual Recognition Challenge , 2014, International Journal of Computer Vision.

[12]  Pascal Vincent,et al.  Representation Learning: A Review and New Perspectives , 2012, IEEE Transactions on Pattern Analysis and Machine Intelligence.

[13]  Colin Raffel,et al.  Lasagne: First release. , 2015 .

[14]  Jian Sun,et al.  Deep Residual Learning for Image Recognition , 2015, 2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR).

[15]  Razvan Pascanu,et al.  Theano: new features and speed improvements , 2012, ArXiv.

[16]  Razvan Pascanu,et al.  Theano: A CPU and GPU Math Compiler in Python , 2010, SciPy.

[17]  Maria Spiropulu,et al.  Topology Classification with Deep Learning to Improve Real-Time Event Selection at the LHC , 2018, Computing and Software for Big Science.