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Real or fake text? We can learn to spot the difference（图）
Computer Science Artificial Intelligence 人工智能
2023/6/29
The most recent generation of chatbots has surfaced longstanding concerns about the growing sophistication and accessibility of artificial intelligence.
DECIDUOUS-CONIFEROUS TREE CLASSIFICATION USING DIFFERENCE BETWEEN FIRST AND LAST PULSE LASER SIGNATURES
Leaf-off First-last pulse Species identification Airborne laser scanners
2015/11/10
In this paper, a deciduous-coniferous tree classification mechanism is proposed, tested and analyzed using solely laser scanner data.The data were acquired under leaf-off conditions by Toposys II syst...
Finite Difference Method Runoff Modelling Using Voronoi Cells
Voronoi Diagram runoff modelling TIN IFDM
2015/10/9
Finite difference runoff modelling has usually been done using a regular grid representation of the terrain. This has various
disadvantages, as the regular pattern does not conform well to observed ...
Science can be expensive. But making customized scientific equipment doesn’t have to be. Researchers at Michigan Technological University have compiled economic data on the effectiveness of open sourc...
MODELING SPATIAL-TEMPORAL DATA IN VERSION-DIFFERENCE MODEL
spatial-temporal version-difference state/event dynamic correlation
2015/8/10
In this paper, a version-difference spatial-temporal data model is proposed. The main research interest centers on spatial-temporal data storage and manipulation. This model uses the terms version and...
Computing with space:a tangle formalism for chora and difference
Computing space tangle formalism
2015/7/22
What is space computing,simulation, or understanding? Converging from several sources, this seems to be something more primitive than what is meant nowadays by computation, something that was along wi...
Computation of flows with shocks using the Spectral Difference method with artificial viscosity, I: Basic formulation and application
Spectral Difference Artifi cial viscosity Compressible fl ows
2015/7/3
The present work combines the Spectral Difference method with an artificial viscosity based approach to enable high-order computation of compressible fluid flows with discontinuities...
Discrete filter operators for large-eddy simulation using high-order spectral difference methods
high-order methods LES turbulence models discrete fi lters spectral difference channel fl ow
2015/7/3
The combination of a high-order unstructured spectral difference (SD) spatial discretization scheme with sub-grid scale (SGS) modeling for large-eddy simulation is investigated with particular focus o...
Structural Wall-modeled LES Using a High-order Spectral Difference Scheme for Unstructured Meshes
High-order schemes Unstructured meshes Large-Eddy simulation Similarity mixed models Wall-modeling
2015/7/3
The combination of the high-order unstructured Spectral Difference (SD) spatial discretization scheme with Sub-Grid Scale (SGS) modeling for Wall-Modeled Large-Eddy Simulation (WMLES) is investigated.
A p-multigrid spectral difference method for two-dimensional unsteady incompressible Navier–Stokes equations
Spectral difference method Artifi cial compressibility method Dual time stepping p-Multigrid
2015/7/3
This paper presents the development of a 2D high-order solver with spectral difference method for unsteady incompressible Navier–Stokes equations accelerated by a p-multigrid method. This solver is de...
FLOW INDUCED CYLINDER OSCILLATION AND ITS CONTROL WITH HIGH ORDER SPECTRAL DIFFERENCE METHOD ON DEFORMABLE MESH
SPECTRAL DIFFERENCE METHOD DEFORMABLE MESH
2015/7/3
In the recent work by the authors, high order spectral difference (SD) method has been formulated in a framework with dynamic deformable meshes, and been demonstrated to preserve the design accuracy o...
Simulation of Transitional Flow over Airfoils using the Spectral Difference Method
Simulation Transitional Flow over Airfoils Spectral Difference Method
2015/7/3
This work addresses the simulation of transitional flow over airfoils under low Reynolds number conditions(Rec ≤ 60000). The flow solutions are obtained by means of an Implicit Large Eddy ...
A Proof of the Stability of the Spectral Difference Method for All Orders of Accuracy
High order methods Discontinuous Galerkin Spectral difference Stability proof
2015/7/3
While second order methods for computational simulations of fluid flow provide the basis of widely used commercial software, there is a need for higher order methods for more accurate simu...
Computation Of Flows with Shocks Using Spectral Difference Scheme with Arti
Computation Flows Shocks Spectral Difference Scheme
2015/7/3
The current work focuses on applying an arti cial viscosity approach to the Spectral Di erence (SD) method to enable high-order computation of compressible uid ows with discontinuities. The study modi...
Spectral difference method for compressible flow on unstructured grids with mixed elements
Spectral difference method Curved wall boundary Unstructured grid Mixed elements
2015/7/2
This paper presents the development of a 2D solver for inviscid and viscous compressible flows using the spectral difference (SD) method for unstructured grids with mixed elements. A mixed quadr...