Classify events based on brem or not 2 classes of events Brem, with - - PowerPoint PPT Presentation

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Feb 08, 2024 158 likes •351 views

Classify events based on brem or not 2 classes of events Brem, with recoil energy < 1500 MeV No brem See if we can distinguish them, two cases should have different shower features Compare 3D CNN, Graph Neural Network 100 000 events for

SLIDE 1

Classify events based on brem or not

2 classes of events

Brem, with recoil energy < 1500 MeV No brem

See if we can distinguish them, two cases should have different shower features Compare 3D CNN, Graph Neural Network 100 000 events for training+ validation 100 000 events for testing/predictions

SLIDE 2

3D CNN

Architecture

1 conv layer, 32 filters of size (8,8,8) 1 max pool of size (5,5,5) 1 dense layer Dropout 0.16

Adam optimizer with learning rate 0.004 ReLu Activation function after conv and dense layer

Max(0,x)

Input size = (45,70,35) 96.4 % accuracy

SLIDE 3

Graph Neural Network

Architecure

3 EdgeConv blocks 1 deep layer 256 nodes Dropout 0.1

Adam optimizer with learning 0.003 100 hits as input vertices ReLu activation function 83.0% accuracy

SLIDE 4

ROC curves, CNN & Graph

SLIDE 5

Mean and Std Dev

SLIDE 6

Mean and Std Dev Rates

SLIDE 7

Mean and Std Dev Rates

SLIDE 8

Mean and Std Dev

SLIDE 9

Mean and Std Dev

SLIDE 10

Mean and Std Dev

SLIDE 11

Energy

SLIDE 12

Azimuthal Angle

SLIDE 13

Azimuthal Angle

SLIDE 14

Energy vs Hits

SLIDE 15

Energy & Hits

SLIDE 16

Energy vs Angle

SLIDE 17