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Scalable Isocontour Visualization in Road Networks via Minimum-Link Paths [article]

Moritz Baum, Thomas Bläsius, Andreas Gemsa, Ignaz Rutter, Franziska Wegner
2016 arXiv   pre-print
We study the problem of computing accurate isocontours in realistic, large-scale networks.  ...  Isocontours in road networks represent the area that is reachable from a source within a given resource limit.  ...  This motivates our work on fast isocontour visualization. Our algorithms for computing isocontours in road networks are guided by three major objectives.  ... 
arXiv:1602.01777v1 fatcat:mbry6iq4nnd3bjmt6fcpfq2n3i

Fast Exact Computation of Isochrones in Road Networks [chapter]

Moritz Baum, Valentin Buchhold, Julian Dibbelt, Dorothea Wagner
2016 Lecture Notes in Computer Science  
We study the problem of computing isochrones in static and dynamic road networks, where the objective is to identify the boundary of the region in range from a given source within a certain amount of time  ...  By extensive experimental analysis, we demonstrate that our techniques enable fast isochrone computation within milliseconds even on continental networks, significantly faster than the state-ofthe-art.  ...  We also explore approaches that do not (explicitly) require a partition of the road network.  ... 
doi:10.1007/978-3-319-38851-9_2 fatcat:i6eotq5ayvd5tjedyos7dntoxm

Connectivity sustains disease transmission in environments with low potential for endemicity: modelling schistosomiasis with hydrologic and social connectivities

D. Gurarie, E. Y.W. Seto
2008 Journal of the Royal Society Interface  
The role that these pathways play in sustaining the transmission of parasitic diseases is unclear, although increasingly realistic metapopulation models are being used to study how diseases persist in  ...  We use a mathematical model of schistosomiasis transmission for a distributed set of heterogeneous villages to show that the transport of parasites via social (host movement) and environmental (parasite  ...  We acknowledge the detailed and substantive comments by the referees which helped us to make substantial improvements in the content and presentation of the work.  ... 
doi:10.1098/rsif.2008.0265 pmid:18782722 pmcid:PMC2575370 fatcat:l7idenu7wzcmjjxd7um76oys54

Editors: Piotr Sankowski and Christos Zaroliagis

Moritz Baum, Thomas Bläsius, Andreas Gemsa, Ignaz Rutter, Franziska Wegner, Moritz Baum, Thomas Bläsius, Andreas Gemsa, Ignaz Rutter, Franziska Wegner
licensed under Creative Commons License CC-BY 24th Annual European Symposium on Algorithms (ESA 2016)   unpublished
We study the problem of computing accurate isocontours in realistic, large-scale networks.  ...  Isocontours in road networks represent the area that is reachable from a source within a given resource limit.  ...  We resort to an exact variant, in accordance with our objectives. Contribution and Outline. We propose several new algorithms for computing polygons that represent isocontours in road networks.  ... 
fatcat:62kp7noxxnbilhvychbsnbke7m

WorldBrush

Arnaud Emilien, Ulysse Vimont, Marie-Paule Cani, Pierre Poulin, Bedrich Benes
2015 ACM Transactions on Graphics  
These distributions can then be interactively applied with brushes and combined in various ways, like in painting systems.  ...  and their parameters are stored as distributions in a palette, similar to colors on a painter's palette.  ...  Acknowledgments The authors would like to thank the computer artists Laura Paiardini and Romain Testylier for their contributions to 3D models and 2D map textures.  ... 
doi:10.1145/2766975 fatcat:khficcyrv5dd7livmx4y6drmsu

SCALABLE EXACT VISUALIZATION OF ISOCONTOURS IN ROAD NETWORKS VIA MINIMUM-LINK PATHS *

Moritz Baum, Thomas Bläsius, Andreas Gemsa, Ignaz Rutter, Franziska Wegner
2018 Journal of Computational Geometry jocg.org   unpublished
We study the problem of computing accurate isocontours in realistic, large-scale networks.  ...  Isocontours in road networks represent the area that is reachable from a source within a given resource limit.  ...  This motivates our work on fast isocontour visualization. Our algorithms for computing isocontours in road networks are guided by three major objectives.  ... 
fatcat:b52y2fnr4jcotmyffl5zjvzmwy

A Theoretical Exploration of the Pulsational Stability of Subdwarf B Stars

Stéphane Charpinet, G. Fontaine, P. Brassard
2001 Publications of the Astronomical Society of the Pacific  
We also review the current status of sdB star seismology, a field that has been growing at a fast pace following this key discovery.  ...  In this paper, we first review the main steps of a purely theoretical exploration of the pulsation properties of subdwarf B (sdB) stars that led us, ultimately, to postulate the existence of a new class  ...  Isocontours indicate the number (N) of excited radial ( ) modes found in the models. The log g-T l p 0 eff Fig. 1.  ... 
doi:10.1086/322139 fatcat:2q6pek2utzel5mtsqbxab6sp6a

Basic Artificial Intelligence Research at the Georgia Institute of Technology

Ashok K. Goel, Ronald C. Arkin, Kurt P. Eiselt, Janet L. Kolodner, Daryl T. Lawton, Ashwin Ram
1991 The AI Magazine  
The first uses a fast region segmentation algorithm previously used for road following to recognize a passive landmark placed on the dock.  ...  Within the College of Computing, several faculty members conduct research on AI-related areas such as human-computer interaction, databases and knowledge bases, and neural networks.  ...  Carnegie Group (Pittsburgh, PA) has been awarded a $225,000 grant from the National Science Foundation to continue its study of developing a hybrid neural network/expert system technology.  ... 
doi:10.1609/aimag.v12i2.897 dblp:journals/aim/GoelAEKLR91 fatcat:xh7x2fh2ezg4dkv6sd7wpk6yle

Air quality in the mid-21st century for the city of Paris under two climate scenarios; from the regional to local scale

K. Markakis, M. Valari, A. Colette, O. Sanchez, O. Perrussel, C. Honore, R. Vautard, Z. Klimont, S. Rao
2014 Atmospheric Chemistry and Physics  
The reduction is much more prominent over the urban part of the domain due to the effective reductions of road transport and residential emissions resulting in the smoothing of the large urban increment  ...  In rural areas, projections at both scales yield similar results showing that the longer timescale processes of emission transport and ozone formation are less sensitive to model resolution.  ...  West The publication of this article is financed by CNRS-INSU.  ... 
doi:10.5194/acp-14-7323-2014 fatcat:kce6d3aajbbanhnma76gtqvdca

Protein Electrostatics: from Computational and Structural Analysis to Discovery of Functional Fingerprints and Biotechnological Design

Filippo Vascon, Matteo Gasparotto, Marta Giacomello, Laura Cendron, Elisabetta Bergantino, Francesco Filippini, Irene Righetto
2020 Computational and Structural Biotechnology Journal  
Computationally driven engineering of proteins aims to allow them to withstand an extended range of conditions and to mediate modified or novel functions.  ...  In contrast, the role of electrostatics and, in particular, of surface interactions has received less attention.  ...  The authors have no conflict of interests to disclose.  ... 
doi:10.1016/j.csbj.2020.06.029 pmid:32695270 pmcid:PMC7355722 fatcat:a2j3irly4rdfnffrrhjhv733nm

Space-Time Window Reconstruction In Parallel High Performance Numeric Simulations. Application For Cfd (Phd Thesis)

Alin Anton, Ioan Cretu
2011 Zenodo  
The size of the output originating from large scale, numerical simulations poses major bottlenecks in high performance, parallel computing.  ...  A regular computational fluid dynamics numerical simulation, is always shifted in time, and sometimes even in space.  ...  Instead of using network tools to intercept the traffic, the author wanted to measure the exact number of floating point values transported through the processor patches.  ... 
doi:10.5281/zenodo.15938 fatcat:xh4i6ig7qvfkjapq76phiadpje

Computational modelling of terrains [article]

Hugo Ledoux, Ken Arroyo Ohori, Ravi Peters
2021 Zenodo  
The book Computational modelling of terrains presents an overview of algorithms and methodologies to reconstruct, manipulate, and extract information from terrains.  ...  It covers different representations of terrains (eg TINs, rasters, point clouds, contour lines) and presents techniques to handle large datasets.  ...  We thank Balázs Dukai for help in proof-reading, and all the  ... 
doi:10.5281/zenodo.5779526 fatcat:65u7aoebvrg3fjyz67o3d7nyky

VLASIATOR FROM LOCAL TO GLOBAL MAGNETOSPHERIC HYBRID-VLASOV SIMULATIONS From local to global magnetospheric hybrid-Vlasov simulations Yann Pfau-Kempf Title Vlasiator-From local to global magnetospheric hybrid-Vlasov simulations

Yann Pfau-Kempf, Yann Pfau-Kempf
2016 unpublished
Its interaction with the magnetic field of the Earth, in and around the region called the magnetosphere, controls the flow of matter and energy in near-Earth space.  ...  in space and on the ground.  ...  Owen, thanks two anonymous referees for help in evaluating this paper.  ... 
fatcat:nc45unmxzjavzcxcro3kz2pevm

Atmospheric composition change – global and regional air quality

P.S. Monks, C. Granier, S. Fuzzi, A. Stohl, M.L. Williams, H. Akimoto, M. Amann, A. Baklanov, U. Baltensperger, I. Bey, N. Blake, R.S. Blake (+51 others)
2009 Atmospheric Environment  
In this review the state of scientific understanding in relation to global and regional air quality is outlined.  ...  The review discusses air quality, in terms of emissions, processing and transport of trace gases and aerosols.  ...  We would also like to thank Laura Dini and the ACCENT project office for the logistical support in assembling this review.  ... 
doi:10.1016/j.atmosenv.2009.08.021 fatcat:hpgsgp3ftvd7thndcqxar3komq

An Assessment of High Dynamic Range Luminance Measurements with LED Lighting

Yulia Tyukhova, Clarence Waters
2013 LEUKOS The Journal of the Illuminating Engineering Society of North America  
about the existing lighting conditions in a fast and efficient way.  ...  Authors resolve the exact exposure ratios in addition to the camera response function. In (Robertson et al. 2003 ) authors present new iterative procedure of recovering camera"s response curve.  ...  But in order to avoid the damage of the camera"s sensor, measurements were taken before the sunset. And I"m still curious, how CF is applied in Photosphere?  ... 
doi:10.1080/15502724.2014.861279 fatcat:ru57dum6sfce7cnahyfqlnauwa
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