4 papers
Resolvent Moreau identities without monotonicity: theory and applications to Gabay duality, Douglas--Rachford and ADMM
Andrew Calcan, Jordan Collard, Alberto De Marchi +1
Duality is most often defined as a relationship between convex functions. If those functions are nonconvex, classical duality breaks down. Notwithstanding, we show that another kin…
Proton specific entropy as a proxy for the charge state ratio over heliocentric distance
Jack D. Collard, Tamar Ervin, Ryan M. Dewey +10
While the fast solar wind has well-established origins in coronal holes, the source of the slow solar wind remains uncertain. Compositional metrics, such as heavy ion charge state…
Power Ensemble Aggregation for Improved Extreme Event AI Prediction
Julien Collard, Pierre Gentine, Tian Zheng
This paper addresses the critical challenge of improving predictions of climate extreme events, specifically heat waves, using machine learning methods. Our work is framed as a cla…
Quadratic Convergence of a Projection Method for a Plane Curve Feasibility Problem
Jordan Collard, Scott B. Lindstrom
Under conditions that prevent tangential intersection, we prove quadratic convergence of a projection algorithm for the feasibility problem of finding a point in the intersection o…