no code implementations • 5 Sep 2023 • Ryan Humble, William Colocho, Finn O'Shea, Daniel Ratner, Eric Darve
Significant advances in utilizing deep learning for anomaly detection have been made in recent years.
1 code implementation • 8 Apr 2023 • Sathya Chitturi, Zhurun Ji, Alexander Petsch, Cheng Peng, Zhantao Chen, Rajan Plumley, Mike Dunne, Sougata Mardanya, Sugata Chowdhury, Hongwei Chen, Arun Bansil, Adrian Feiguin, Alexander Kolesnikov, Dharmalingam Prabhakaran, Stephen Hayden, Daniel Ratner, Chunjing Jia, Youssef Nashed, Joshua Turner
The observation and description of collective excitations in solids is a fundamental issue when seeking to understand the physics of a many-body system.
no code implementations • 26 Jan 2023 • Ryan Humble, Zhe Zhang, Finn O'Shea, Eric Darve, Daniel Ratner
While complex systems often have a wealth of data, labeled anomalies are typically rare (or even nonexistent) and expensive to acquire.
no code implementations • 2 Nov 2022 • Minjie Lei, Ka Vang Tsang, Sean Gasiorowski, Chuan Li, Youssef Nashed, Gianluca Petrillo, Olivia Piazza, Daniel Ratner, Kazuhiro Terao
As the size of a table increases with detector volume for a fixed resolution, this method scales poorly for future larger detectors.
no code implementations • 29 Sep 2022 • Youssef Nashed, Ariana Peck, Julien Martel, Axel Levy, Bongjin Koo, Gordon Wetzstein, Nina Miolane, Daniel Ratner, Frédéric Poitevin
Cryogenic electron microscopy (cryo-EM) provides a unique opportunity to study the structural heterogeneity of biomolecules.
no code implementations • 10 Sep 2022 • Sara A. Miskovich, Willie Neiswanger, William Colocho, Claudio Emma, Jacqueline Garrahan, Timothy Maxwell, Christopher Mayes, Stefano Ermon, Auralee Edelen, Daniel Ratner
Traditional black-box optimizers such as Bayesian optimization are slow and inefficient when dealing with such objectives as they must acquire the full series of measurements, but return only the emittance, with each query.
1 code implementation • 15 Mar 2022 • Axel Levy, Frédéric Poitevin, Julien Martel, Youssef Nashed, Ariana Peck, Nina Miolane, Daniel Ratner, Mike Dunne, Gordon Wetzstein
We introduce cryoAI, an ab initio reconstruction algorithm for homogeneous conformations that uses direct gradient-based optimization of particle poses and the electron scattering potential from single-particle cryo-EM data.
no code implementations • 7 Jul 2021 • Youssef S. G. Nashed, Frederic Poitevin, Harshit Gupta, Geoffrey Woollard, Michael Kagan, Chuck Yoon, Daniel Ratner
Cryogenic electron microscopy (cryo-EM) provides images from different copies of the same biomolecule in arbitrary orientations.
no code implementations • 17 Jun 2020 • Daniel Ratner
This pair of CAS lectures gives an introduction for accelerator physics students to the framework and terminology of machine learning (ML).