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# Machine Learning and Data Analysis for Nuclear Physics, a Nuclear TALENT Course at the ECT*, Trento, Italy, June 22 to July 3 2020.
## Why a course on Machine Learning for Nuclear Physics?
Probability theory and statistical methods play a central role in
science. Nowadays we are surrounded by huge amounts of data. For
example, there are about one trillion web pages; more than one hour of
video is uploaded to YouTube every second, amounting to 10 years of
content every day; the genomes of 1000s of people, each of which has a
length of more than a billion base pairs, have been sequenced by
various labs and so on. This deluge of data calls for automated
methods of data analysis, which is exactly what machine learning
provides. The purpose of this Nuclear Talent course is to provide an
introduction to the core concepts and tools of machine learning in a
manner easily understood and intuitive to physicists and nuclear
physicists in particular. We will start with some of the basic methods
from supervised learning and statistical data analysis, such as
various regression methods before we move into deep learning methods
for both supervised and unsupervised learning, with an emphasis on the
analysis of nuclear physics experiments and theoretical nuclear
physics. The students will work on hands-on daily examples as well as
projects than can result in final credits. Exercises and projects will
be provided and the aim is to give the participants an overview on how
machine learning can be used to analyze and study nuclear physics
problems (experiment and theory). The major scope is to give the
participants a deeper understanding on what Machine learning and Data
Analysis are and how they can be used to analyze data from nuclear
physics experiments and perform theoretical calculations of nuclear
many-body systems.
The goals of the Nuclear Talent course on Machine Learning and Data Analysis are to give the participants a deeper understanding and critical view of several widely popular Machine Learning algorithms, covering both supervised and unsupervised learning. The learning outcomes involve an understanding of the following central methods:
- Basic concepts of machine learning and data analysis and statistical concepts like expectation values, variance, covariance, correlation functions and errors;
- Estimation of errors using cross-validation, blocking, bootstrapping and jackknife methods;
- Optimization of functions
- Linear Regression and Logistic Regression;
- Dimensionality reductions, from PCA to clustering
- Boltzmann machines;
- Neural networks and deep learning;
- Convolutional Neural Networks
- Recurrent Neureal Networks and Autoencoders
- Decisions trees and random forests
- Support vector machines and kernel transformations
We are targeting an audience of graduate students (both Master of Science and PhD) as well as post-doctoral researchers in nuclear experiment and theory.
The teaching teams consists of both theorists and experimentalists. We believe such a mix is important as it gives the participants a better understanding on how data are obtained, and what are the limitations and possibilities in understanding and interpreting the experimental information.
## Introduction to the Talent Courses
A recently established initiative, Training in Advanced Low Energy Nuclear Theory, aims at providing an advanced and comprehensive training to graduate students and young researchers in low-energy nuclear theory. The initiative is a multinational network between several European and Northern American institutions and aims at developing a broad curriculum that will provide the platform for a cutting-edge theory for understanding nuclei and nuclear reactions. These objectives will be met by offering series of lectures, commissioned from experienced teachers in nuclear theory. The educational material generated under this program will be collected in the form of WEB-based courses, textbooks, and a variety of modern educational resources. No such all-encompassing material is available at present; its development will allow dispersed university groups to profit from the best expertise available.
## Aims and Learning Outcomes
This two-week online TALENT course on nuclear theory will focus on Machine Learning and Data Analysis algorithms for nuclear physics and to use such methods in the interpretation of data on the structure of nuclear systems.
We propose approximately twenty hours of lectures over two weeks and a comparable amount of practical computer and exercise sessions, including the setting of individual problems and the organization of various individual projects.
The mornings will consist of lectures and the afternoons will be devoted to exercises meant to shed light on the exposed theory, the computational projects and individual student projects. These components will be coordinated to foster student engagement, maximize learning and create lasting value for the students. For the benefit of the TALENT series and of the community, material (courses, slides, problems and solutions, reports on students' projects) will be made publicly available using version control software like git and posted electronically on github (this site).
### Learning Outcomes
At the end of the course the students should have a basic understanding of
- Statistical data analysis, theory and tools to handle large data sets.
- A solid understanding of central machine learning algorithms for supervised and unsupervised learning, involving linear and logistic regression, support vector machines, decision trees and random forests, neural networks and deep learning (convolutional neural networks, recursive neural networks etc)
- Be able to write codes for linear regression, logistic regression and use modern libraries like Tensorflow, Pytorch, Scikit-Learn in order to analyze data from nuclear physics experiments and perform theoretical calculations
- A deeper understanding of the statistical properties of the various methods, from the bias-variance tradeoff to resampling techniques.
## Course Content and detailed plan of online Talent course
The lecture plan is as follows
### Week 1
- _Monday_ Linear Regression and intro to statistical data analysis (Morten Hjorth-Jensen MHJ). Learning slides at
https://nucleartalent.github.io/MachineLearningECT/doc/pub/Introduction/html/Introduction.html and https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day1/html/Day1.html and link to video from lecture June 22 https://mediaspace.msu.edu/media/t/1_ogq38oqq
- _Tuesday_ Logistic Regression and classification problems, intro to gradient methods (MHJ). Learning slides at https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day2/html/Day2.html and link to video for first lecture at https://mediaspace.msu.edu/media/t/1_po1a5e9v and second lecture at https://mediaspace.msu.edu/media/t/1_wbz4v2gm
- _Wednesday_ Decision Trees, Random Forests and Boosting methods (MHJ). Learning slides at https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day3/html/Day3.html and link to video at https://mediaspace.msu.edu/media/t/1_vrt5rxls
- _Thursday_ Basics of Neural Networks and writing your own Neural Network code (MHJ). Learning slides at https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day4/html/Day4.html and link to video at https://mediaspace.msu.edu/media/t/1_ksuz0ero. The link to the video of the additional exercise session is at https://mediaspace.msu.edu/media/t/1_shte4iw5
- _Friday_ Beta-decay experiments, how to analyze various events, with hands-on examples . (Sean Liddick) Videos and teaching material https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day5/html/Day5.html. Link to video of online lecture at https://mediaspace.msu.edu/media/1_5n2bssbl. The link to the video of the additional exercise session is at https://mediaspace.msu.edu/media/1_q74f31cw
### Week 2
- _Monday_ Neural Networks and Deep Learning (Raghu Ramanujan, RR). PDF file of the presented slides at https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day6/pdf/Day6.pdf. Jupter-Notebook at https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day6/ipynb/Day6.ipynb. Video of lecture at https://mediaspace.msu.edu/media/t/1_58a9xrbt. Video of exercise session at https://mediaspace.msu.edu/media/t/1_ulont3rg
- _Tuesday_ From Neural Networks to Convolutional Neural Networks and how to analyze experiment (classification of events and real data) (Michelle Kuchera, MK). Jupyter-notebook of lecture at https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day7/ipynb/Day7.ipynb. Video of lecture https://mediaspace.msu.edu/media/t/1_2ysd5plh and video of exercise at https://mediaspace.msu.edu/media/t/1_watjxppf
- _Wednesday_ Discussion of nuclear experiments and how to analyze data, presentation of simulated data from Active-Target Time-Projection Chamber (AT-TPC) (Daniel Bazin). Slides of lectures (PDF) at https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day8/pdf/Day8.pdf. Videos and teaching material https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day8/html/Day8.html. Video of actual lecture at https://mediaspace.msu.edu/media/t/1_azaquoc0. Video of analysis of data with CNNs (MK) at https://mediaspace.msu.edu/media/t/1_rozywc7h. Jupyter-notebook of hands-on session at https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day8/ipynb/Day8.ipynb
- _Thursday_ Generative models (MK). Slides of lectures (PDF) at https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day9/pdf/Day9.pdf.
Jupyter-notebook at https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day9/ipynb/Day9.ipynb.
Video of lecture at https://mediaspace.msu.edu/media/t/1_ayfst99b. Video of exercise session at https://mediaspace.msu.edu/media/t/1_wpdmt7cw.
- _Friday_ Reinforcement Learning (RR). Slides of lectures (PDF) at https://nucleartalent.github.io/MachineLearningECT/doc/pub/Day10/pdf/Day10.pdf. Future directions in machine learning and summary of course. Video of first lecture at https://mediaspace.msu.edu/media/t/1_0eiikln6. Video of second lecture at https://mediaspace.msu.edu/media/t/1_wzyabacr.
## Teaching
The course will be taught as an online intensive course of duration of two weeks, with a total time of 20 h of lectures and 10 h of exercises, questions and answers. Videos and digital learning material will be made available one week before the course begins. It is possible to work on a final assignment of 2 weeks of work. The total load will be approximately 80 hours, corresponding to 5 ECTS in Europe. The final assignment will be graded with marks A, B, C, D, E and failed for Master students and passed/not passed for PhD students. A course certificate will be issued for students requiring it from the University of Trento.
The registration link is at https://www.ectstar.eu/node/4472
The organization of a typical course day is as follows:
_Time and Activity_
- 2pm-4pm (Central European time=CET) Lectures, project relevant information and directed exercises
- 5pm-6pm (CET) Questions and answers, Computational projects, exercises and hands-on sessions
## Teachers and organizers
The teachers and organizers are
- Daniel Bazin at Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan, USA (DB)
- Morten Hjorth-Jensen at Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan, USA (MHJ)
- Michelle Kuchera at Physics Department, Davidson College, Davidson, North Carolina, USA (MK)
- Sean Liddick at Department of Chemistry and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan, USA (SL)
- Raghuram Ramanujan at Department of Mathematics and Computer Science, Davidson College, Davidson, North Carolina, USA (RR)
Morten Hjorth-Jensen will also function as student advisor and coordinator.
## Audience and Prerequisites
Students and post-doctoral fellows interested in nuclear physics, experiment and theory alike interested in data analysis and machine learning applied to nuclear physics.
The students are expected to have operating programming skills in programming, and in particular on interpreted languages like Python. Preparatory modules on Python programing will be given, idem for a review on linear algebra and statistical data analysis.
Students who have not studied the above topics are expected to gain this knowledge prior to attendance. Additional modules for self-teaching will be provided in good time before the course begins
## Online Material:
For more information, please go to https://github.com/NuclearTalent/MachineLearningECT or go to http://nucleartalent.github.io/MachineLearningECT/doc/web/course.html for better display of course material and topics to be covered.
Admission
The target group is Master of Science students, PhD students and early post-doctoral fellows. Also senior staff can attend but they have to be self-supported.
## Possible textbooks
_Recommended textbook_:
- Aurelien Geron, Hands‑On Machine Learning with Scikit‑Learn and TensorFlow, O'Reilly
_General learning book on statistical analysis_:
- Christian Robert and George Casella, Monte Carlo Statistical Methods, Springer
- Peter Hoff, A first course in Bayesian statistical models, Springer
- Trevor Hastie, Robert Tibshirani, Jerome H. Friedman, The Elements of Statistical Learning, Springer
_General Machine Learning Books_:
- Kevin Murphy, Machine Learning: A Probabilistic Perspective, MIT Press
- Christopher M. Bishop, Pattern Recognition and Machine Learning, Springer
- David J.C. MacKay, Information Theory, Inference, and Learning Algorithms, Cambridge University Press
- David Barber, Bayesian Reasoning and Machine Learning, Cambridge University Press