7 code implementations • 8 Jul 2019 • Luca Pappalardo, Gianni Barlacchi, Filippo Simini, Roberto Pellungrini
The last decade has witnessed the emergence of massive mobility data sets, such as tracks generated by GPS devices, call detail records, and geo-tagged posts from social media platforms.
Physics and Society
1 code implementation • 1 Dec 2020 • Filippo Simini, Gianni Barlacchi, Massimiliano Luca, Luca Pappalardo
The movements of individuals within and among cities influence critical aspects of our society, such as well-being, the spreading of epidemics, and the quality of the environment.
1 code implementation • 16 Jul 2016 • Luca Pappalardo, Filippo Simini
DITRAS operates in two steps: the generation of a mobility diary and the translation of the mobility diary into a mobility trajectory.
1 code implementation • 11 Jun 2020 • Emanuele Strano, Filippo Simini, Marco De Nadai, Thomas Esch, Mattia Marconcini
To explain the observed spatial patterns, we also propose a model that combines two agglomeration forces and simulates human settlements' historical growth.
Physics and Society
1 code implementation • 4 Nov 2022 • Ryien Hosseini, Filippo Simini, Austin Clyde, Arvind Ramanathan
The process of screening molecules for desirable properties is a key step in several applications, ranging from drug discovery to material design.
1 code implementation • 20 Aug 2019 • Robert Eyre, Flavia De Luca, Filippo Simini
The challenge of nowcasting and forecasting the effect of natural disasters (e. g. earthquakes, floods, hurricanes) on assets, people and society is of primary importance for assessing the ability of such systems to recover from extreme events.
Physics and Society Computers and Society Applications
1 code implementation • 20 Jul 2022 • Ryien Hosseini, Filippo Simini, Venkatram Vishwanath
At a high level, we conclude that on NVIDIA systems: (1) confounding bottlenecks such as memory inefficiency often dominate runtime costs moreso than data sparsity alone, (2) native Pytorch operations are often as or more competitive than their Pytorch Geometric equivalents, especially at low to moderate levels of input data sparsity, and (3) many operations central to state-of-the-art GNN architectures have little to no optimization for sparsity.
no code implementations • 15 Jun 2023 • Shilpika, Bethany Lusch, Murali Emani, Filippo Simini, Venkatram Vishwanath, Michael E. Papka, Kwan-Liu Ma
This end-to-end log analysis system, coupled with visual analytics support, allows users to glean and promptly extract supercomputer usage and error patterns at varying temporal and spatial resolutions.
no code implementations • 22 Jun 2023 • Riccardo Balin, Filippo Simini, Cooper Simpson, Andrew Shao, Alessandro Rigazzi, Matthew Ellis, Stephen Becker, Alireza Doostan, John A. Evans, Kenneth E. Jansen
Recent years have seen many successful applications of machine learning (ML) to facilitate fluid dynamic computations.