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Related papers: Second Order Operators in the NASA Astrophysics Da…

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Neural operators (NOs) provide a new paradigm for efficiently solving partial differential equations (PDEs), but their training depends on costly high-fidelity data from numerical solvers, limiting applications in complex systems. We…

Computational Physics · Physics 2026-05-18 Wen You , Shaoqian Zhou , Xuhui Meng

We propose a novel second-order optimization framework for training the emerging deep continuous-time models, specifically the Neural Ordinary Differential Equations (Neural ODEs). Since their training already involves expensive gradient…

Machine Learning · Computer Science 2021-11-09 Guan-Horng Liu , Tianrong Chen , Evangelos A. Theodorou

Despite the recent popularity of attention-based neural architectures in core AI fields like natural language processing (NLP) and computer vision (CV), their potential in modeling complex physical systems remains under-explored. Learning…

Machine Learning · Computer Science 2024-08-15 Yue Yu , Ning Liu , Fei Lu , Tian Gao , Siavash Jafarzadeh , Stewart Silling

Earth observation (EO) satellite missions have been providing detailed images about the state of the Earth and its land cover for over 50 years. Long term missions, such as NASA's Landsat, Terra, and Aqua satellites, and more recently, the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-27 Lynn Miller , Charlotte Pelletier , Geoffrey I. Webb

It is quite popular nowadays for researchers and data analysts holding different datasets to seek assistance from each other to enhance their modeling performance. We consider a scenario where different learners hold datasets with…

Machine Learning · Statistics 2024-05-15 Jiawei Zhang , Yuhong Yang , Jie Ding

The standard paradigm in Neural Architecture Search (NAS) is to search for a fully deterministic architecture with specific operations and connections. In this work, we instead propose to search for the optimal operation distribution, thus…

Machine Learning · Computer Science 2021-11-09 Xingchen Wan , Binxin Ru , Pedro M. Esperança , Fabio M. Carlucci

Dense random sampling and surfacing of shapes encoded via implicit occupancy functions (OFs) are critical elements of many applications. Existing methods largely provide either one or the other of random sampling or mesh surfaces: ray…

Graphics · Computer Science 2026-05-06 Suzuran Takikawa , Leo Foord-Kelcey , Oliver Oxford , Nicholas Vining , Alla Sheffer

Operation of the US Virtual Astronomical Observatory shares some issues with modern physical observatories, e.g., intimidating data volumes and rapid technological change, and must also address unique concerns like the lack of direct…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 Thomas A. McGlynn , Robert J. Hanisch , G. Bruce Berriman , Aniruddha R. Thakar

The Double Operator Integral (DOI) framework provides a powerful tool for analyzing perturbations and interactions between self-adjoint operators in functional analysis and spectral theory. However, most existing DOI formulations rely on…

Functional Analysis · Mathematics 2025-03-21 Shih-Yu Chang

This book dwells on mathematical and algorithmic issues of data analysis based on generality order of descriptions and respective precision. To speak of these topics correctly, we have to go some way getting acquainted with the important…

Logic in Computer Science · Computer Science 2019-08-30 Sergei O. Kuznetsov

Differential algebraic equations (DAEs) describe the temporal evolution of systems that obey both differential and algebraic constraints. Of particular interest are systems that contain implicit relationships between their components, such…

Machine Learning · Computer Science 2025-07-23 James Koch , Madelyn Shapiro , Himanshu Sharma , Draguna Vrabie , Jan Drgona

In the age of big data, more and more applications need to query and analyse large volumes of continuously updated data in real-time. In response, cloud-scale storage systems can extend their interface that allows fast lookups on the…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-01-10 Dimitrios Vasilas

This report provides detailed findings on the critical laboratory astrophysics data needs that are required to maximize the scientific return for NASA's current and near-term planned astrophysics missions. It also provides prioritized…

Instrumentation and Methods for Astrophysics · Physics 2020-01-31 N. Brickhouse , G. J. Ferland , S. Milam , E. Sciamma-O'Brien , A. Smale , A. Spyrou , P. C. Stancil , L. Storrie-Lombardi , G. M. Wahlgren

Robot Operating System 2 (ROS 2) relies on the Data Distribution Service (DDS), which offers more than 20 Quality of Service (QoS) policies governing availability, reliability, and resource usage. Yet ROS 2 users lack clear guidance on safe…

Networking and Internet Architecture · Computer Science 2025-09-04 Sanghoon Lee , Junha Kang , Kyung-Joon Park

Machine learning models deployed in open-world scenarios often encounter unfamiliar conditions and perform poorly in unanticipated situations. As AI systems advance and find application in safety-critical domains, effectively handling…

Machine Learning · Computer Science 2025-04-22 Tian Xie , Jifan Zhang , Haoyue Bai , Robert Nowak

Based on symmetry consideration, quasi-one-dimensional (1D) objects, relevant to numerous observables or phenomena, can be classified into eight different types. We provide various examples of each 1D type, and discuss their Symmetry…

Mesoscale and Nanoscale Physics · Physics 2025-04-10 Sang-Wook Cheong , Seongjoon Lim , Kai Du , Fei-Ting Huang

Using systematic calculations in spinor language, we obtain simple descriptions of the second order symmetry operators for the conformal wave equation, the Dirac-Weyl equation and the Maxwell equation on a curved four dimensional Lorentzian…

General Relativity and Quantum Cosmology · Physics 2014-06-20 Lars Andersson , Thomas Bäckdahl , Pieter Blue

We define a class of discrete operators acting on infinite, finite or periodic sequences mimicking the standard properties of pseudo-differential operators. In particular we can define the notion of order and regularity, and we recover the…

Analysis of PDEs · Mathematics 2021-10-01 Erwan Faou , Benoît Grébert

This paper discusses relational operations in the first-order logical environment {FOLE}. Here we demonstrate how FOLE expresses the relational operations of database theory in a clear and implementable representation. An analysis of the…

Databases · Computer Science 2021-03-23 Robert E. Kent

The Smithsonian/NASA Astrophysics Data System exists at the nexus of a dense system of interacting and interlinked information networks. The syntactic and the semantic content of this multipartite graph structure can be combined to provide…

Instrumentation and Methods for Astrophysics · Physics 2009-12-31 Michael J. Kurtz , Alberto Accomazzi , Edwin Henneken , Giovanni Di Milia , Carolyn S. Grant
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