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An ontology for linear spatial reasoning
[chapter]
1996
Lecture Notes in Computer Science
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An ontology for spatial reasoning based on a tesseral representation of space is presented. ...
Consequently, all multi-dimensional spatial reasoning can be implemented using one dimensional (temporal) reasoning techniques. ...
The system has been implemented using a quad-tesseral representation based on the hierarchical decomposition of space (see [?] ) and a Cartesian "grid-referencing" system. ...
doi:10.1007/bfb0034725
fatcat:z5nmog4ujrfopd3qj5a4yz4dnq
Highly accurate numerical computation of implicitly defined volumes using the Laplace-Beltrami operator
[article]
2018
arXiv
pre-print
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After spatial discretization, local approximation of the hypersurface and application of the Gaussian divergence theorem, the volume integrals are transformed to surface integrals. ...
We discuss the theoretical foundations and provide details of the numerical algorithm. ...
Acknowledgement The work of J. ...
arXiv:1805.03136v1
fatcat:tbbuhfugrrb33fims6najp5nri
Neighbor-based Properties of Some Orderings of Two-dimensional Space
2010
Geographical Analysis
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The Internet Archive has digitized a microfilm copy of this work. It may be possible to borrow a copy for reading.
“On the Ordering of brstng sees — Introduction and Relation to Tesseral Principles.” In Spatial Data Processing Using edited by B Diaz and S. Bell. ...
In this paper, only evaluation methods based on the keys of spatial neighbors will be used. ...
doi:10.1111/j.1538-4632.1990.tb00201.x
fatcat:unysbsuapnfdvk53sfmser4q64
SPICE: Scalable P2P implicit group messaging
2008
Computer Communications
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Through detailed simulation and analysis using Zipfian data sources we demonstrate these techniques are capable of very fairly distributing incoming and outgoing loads over peers irrespective of the scale ...
Unlike traditional multicast or publish/subscribe messaging, IGM delivers content to "implicit groups" of consumers with characteristics specified by the publisher at the time of publication. ...
Acknowledgements The authors wish to acknowledge the support of the Smart Internet Technology CRC, and the constructive suggestions of Derek J. Corbett and the anonymous reviewers. ...
doi:10.1016/j.comcom.2007.08.026
fatcat:h53gcrlgzref3j7f4nrfjudciu
Confidence Intervals and Significance Tests for Spherical Data Derived from Feature Tracking
2008
Monthly Weather Review
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The improvement in the statistical estimation makes use of spherical quad tree data structures based on a hierarchical decomposition of the sphere into spherical triangles into which the data and estimation ...
easterly waves, are derived from ensembles of the system trajectories using spherical kernel estimators. ...
The author would like to thank ...
doi:10.1175/2007mwr2299.1
fatcat:ijl5bdmdardovfmttpxcn7i2h4
Extracting roads from dense point clouds in large scale urban environment
2011
ISPRS journal of photogrammetry and remote sensing (Print)
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Starting with an approximate map of the road network given in the form of 2D intersection locations connected by polylines, we first produce a 3D representation of the map by optimizing Cardinal splines ...
to minimize the distances to points of the cloud under continuity constraints. ...
First, we thank Neptec, John Gilmore, and Wright State University for access to the 3D LIDAR data set. Second, we thank Alex Golovinskiy for source code and guidance. ...
doi:10.1016/j.isprsjprs.2011.09.009
fatcat:wqbu32tvtbee3fglmj36bh6tim
Third-order accurate initialization of VOF volume fractions on unstructured meshes with arbitrary polyhedral cells
[article]
2021
arXiv
pre-print
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This face-based formulation enables the applicability to unstructured meshes and considerably simplifies the numerical procedure for applications in three spatial dimensions. ...
Finally, we present numerical results for convex and non-convex hypersurfaces embedded in cuboidal and tetrahedral meshes, showing both high accuracy and third- to fourth-order convergence with spatial ...
be evaluated by standard Gauss-Legendre quadrature using N quad = 5 nodes. −1 0 1 −1 0 1 t 1 t 2 ∂S Γ t k (s ± k,m ) n S Γ
Topological connectivity of curve segments The logical status of the principal ...
arXiv:2111.01073v2
fatcat:3ylrw3u64fgavmxtfzqi7x7yvq
Modelli interpretativi a servizio dell'arte: la porta del paradiso di Lorenzo Ghiberti
[chapter]
2021
42th INTERNATIONAL CONFERENCE OF REPRESENTATION DISCIPLINES TEACHERS. CONGRESS OF UNIONE ITALIANA PER IL DISEGNO. PROCEEDINGS 2020. LINGUAGGI, DISTANZE, TECNOLOGIE
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Un disegno per annodare e tessere. Linguaggi Distanze Tecnologie. Atti del 42° Convegno Internazionale dei Docenti delle Discipline della Rappresentazione/Connecting. ...
In order to fully understand the meaning of the transfigured text, it is necessary, both today and in the past, to possess the reading codes. ...
Giovanni Serafini of the Museo dell'Opera di Santa Maria del Fiore for the analysis of the sacred texts and the drafting of the storyboard and, finally, Prof. ...
doi:10.3280/oa-693.140
fatcat:nyh3x35iongfde5v2ecii4ye5e
Cost-Efficient Global Robot Navigation in Rugged Off-Road Terrain
2011
Künstliche Intelligenz
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on the literature database, and Thomas Wahl for taking up Carsten's work on the electronics as well as the tedious task of laying out new circuit boards. ...
Further acknowledgments go to the other people in the lab which allowed me to see other interesting areas of their research and carried a part of the group's basic workload. ...
By exploiting its regular spatial layout, it is relatively easy to determine whether two quads are neighbors using tesseral arithmetics [Faust 08 ]. ...
doi:10.1007/s13218-011-0088-9
fatcat:u4ssainmcvc3jmqdon6gpjg674
Spherical cap harmonic analysis (SCHA) for characterising the morphology of rough surface patches
2021
Powder Technology
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orthogonal and cannot be used together for the power spectral analysis [47]. ...
The domes in D-E were obtained using the DistMesh method [57] followed by rescaling and the inverse Lambert's projection. ...
have appeared to influence the work reported in this paper. ...
doi:10.1016/j.powtec.2021.07.081
fatcat:n6qcohs3ozflzdqm7ypd4wps4m
Solar Field Mapping and Dynamo Behavior
2012
Advances in Astronomy
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We discuss the importance of the Sun's large-scale magnetic field to the Sun-Planetary environment. ...
The domain of this algorithmic model is the Sun's photosphere. ...
Acknowledgments The author appreciates comments from Hans Mayr, Norman Ness, Eugene Parker, and Leif Svalgaard. ...
doi:10.1155/2012/923578
fatcat:xa6puojsdrdixi2kzibmqdnqia
Spherical Cap Harmonic Analysis (SCHA) for Characterising the Morphology of Rough Surface Patches
[article]
2021
arXiv
pre-print
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We use spherical cap harmonic (SCH) basis functions to analyse and reconstruct the morphology of scanned genus-0 rough surface patches with open edges. ...
This bandlimiting can be used for modifying surfaces, such as for generating finite or discrete element meshes for contact problems. ...
This work was supported in part by the National Science Foundation under Grant No. DMS-2002103 (to G.P.T.C.). ...
arXiv:2107.14629v1
fatcat:7hrjkkrtrjfe7jibzo32zybqze
Tilings and Amalgamations
1989
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Chapter 3 discusses tesseral arithmetic^ and shows how the theory of amalgamations can be used to produce addressing systems of the plane. ...
The first chapter of the thesis reviews some of the basic concepts and results in the theory of tilings. Chapter 2 introduces amalgamations, both of tilings and of infinite graphs. ...
Each integer has a unique representation in this system, with no use of minus signs needed. ...
doi:10.21954/ou.ro.0000fc18
fatcat:lggc5v5g3bftfm6z7e53efqusm
The Mass Impact of Videogame Technology
[chapter]
1984
Advances in Computers
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It was also used in PUCK-MAN, renamed PAC-MAN for aesthetic reasons in the English-speaking market . This technology later evolved into the Bally/Midway line buffer system used in TRON . ...
This game allows players to construct potentially beautiful abstract and representational animated sequences in a collage on the screen . ...
doi:10.1016/s0065-2458(08)60463-5
fatcat:n44utxwt6fdbhellbbhgg44y2e
Orbital Dynamics of "Smart-Dust" Devices with Solar Radiation Pressure and Drag
2011
Journal of Guidance Control and Dynamics
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swarms of micro-scale "smart dust" devices, without the use of active control. ...
The long-term orbit evolution is characterized by librational motion, progressively decaying due to the non-conservative effect of atmospheric drag. ...
Acknowledgments This work was funded by the European Research Council, as part of project VISIONSPACE (227571). ...
doi:10.2514/1.52140
fatcat:y3zp7gb7njb3xofd7rpkmjrl6a
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