Jefferson Lab staff and scientific users are exploring how artificial intelligence and machine learning can benefit ongoing scientific research and R&D.

Artificial Intelligence is a burgeoning field in science and computing with the goal of training machines to make determinations on a course of action in a manner similar to a human. Machine learning is a branch of artificial intelligence in which algorithms take sample data, called training data, and build a mathematical model that uses pattern identification and inference to make predictions or decisions instead of being told exactly what to do. While there are no dedicated artificial intelligence and machine learning groups at Jefferson Lab, there are staff members and scientific users who are working on projects that apply AI and machine learning to problems in their fields of expertise, including nuclear and accelerator physics problems. Learn more about these projects below.

"*Extracting the Most from Collider Data with Deep Learning"*

Dr. Ben Nachman (LBL)

**Abstract**

“Precise scientific analysis in collider-based particle physics is possible because of complex simulations that connect fundamental theories to observable quantities. These simulations have been paired with multivariate methods for many years in search of the smallest distance scales in nature. Deep learning tools hold great promise to qualitatively change this paradigm by allowing for holistic analysis of data in its natural hyperdimensionality with thousands or millions of features instead of up to tens of features. These tools are not yet broadly used for all areas of data analysis because of the traditional dependence on simulations. In this talk, I will discuss how we can change this paradigm in order to exploit the new features of deep learning to explore nature at sub-nuclear distance scales. In particular, I will show how neural networks can be used to (1) overcome the challenge of intractable hypervariate probability density modeling and (2) learn directly from (unlabeled) data to perform hypothesis tests that go beyond any existing analysis methods. The example for (1) will be full phase space unfolding and the example for (2) will be anomaly detection. The talk will include a discussion of uncertainties associated with deep learning-based analyses.”

Date: June 30, 2021

**Join with Bluejeans:** https://bluejeans.com/451415148/8427

*“Graph Neural Networks and Metric Learning for the Future of Particle Physics”*

Dr. Daniel Murnane (LBL)

**Abstract**

"The discovery of the Higgs boson at the Large Hadron Collider was a colossal effort that brought together many advanced experimental, theoretical and computational techniques. We are opening a door to a new generation of particle physics experiments that will try to answer questions about dark matter, dark energy and why the universe seems to be so perfectly tuned for complex structures, like life. Many Higgs-era techniques may not be powerful enough for these new energy/intensity scales, and so we turn to machine learning (ML) techniques to help answer these questions. It turns out that not only does ML boost our ability to discover new physics, it also challenges us to think about physics problems in new ways."

Join with Bluejeans: https://bluejeans.com/260264787

Date: June 02, 2021

"Interpretable Machine Learning for Physics, using Symbolic Regression and Graph Neural Networks"

Miles Cranmer

“In this talk I will argue two points. 1) Symbolic regression, a machine learning technique that fits data by iteratively searching the space of all possible analytic equations, should be a standard machine learning algorithm in physics. 2) Symbolic regression can be extended to high-dimensional spaces, such as to models for N-body simulations, using the method we have developed.

Date: May 05, 2021

The 1st Artificial Intelligence for Nuclear Physics Winter School (AI4NP) will occur on **January 11-15, 2021** online. The goal is to give the participants a deeper understanding on what Artificial Intelligence and Machine Learning are and how they can be used to analyze data, design new detectors, controls, and calibration systems for nuclear physics experiments and perform theoretical calculations of nuclear many-body systems. The AI4NP Winter School will consist of a combination of lectures and guided hands-on exercises covering a variety of topics from the basics of neural networks to real life applications in theoretical and experimental Nuclear Physics.

Date: January 11-15, 2021