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Spatiotemporal Prediction of Nitrogen Dioxide Based on Graph Neural Networks
(Springer, 2022-11-10)
Air quality prediction, especially spatiotemporal prediction,
is still a challenging issue. Considering the impact of numerous factors on
air quality causes difficulties in integrating these factors in a spatiotemporal ...
Adaptive single-pixel imaging through turbid media
(Optica Publishing Group, 2022-07-11)
We present a system for imaging objects through non-homogeneous scattering media that works in an adaptive way by combining diffuse optical imaging (DOI) and single-pixel imaging (SPI) techniques. The experimental results ...
Reconfigurable Intelligent Surface Placement in 5G NR/6G: Optimization and Performance Analysis
(IEEE, 2022-09-12)
The reconfigurable intelligent surface (RIS) adoption has drawn significant attention for the upcoming generation of cellular networks, i.e., 5G New Radio (NR)/6G, as a technology for forming virtual line-of-sight (LoS) ...
Space-Time Analogies in Optics
(Elsevier, 2011)
The so-called space-timeanalogy constitutes a source of inspiration to understand, engineer, and implement new systems for ultrafast optical signal processing based on concepts borrowed from the well-established field of ...
View-dependent pruning for real-time rendering of trees
(Elsevier, 2011-04)
The main problem in the real-time rendering of vegetation is the massive amount of primitives to be rendered. These primitives are needed to fully describe the geometry of the plants. However, some of them are not visible ...
Managing user-generated information in geospatial cyberinfrastructures
(Elsevier, 2011)
Information systems built using standards-based distributed services have become the default computing paradigm adopted by the geospatial community for building information infrastructures also known as Spatial Data ...
Assessing local differences between the spatio-temporal second-order structure of two point patterns occurring on the same linear network
(2021)
We introduce Local Indicators of Spatio-Temporal Association (LISTA) functions on linear networks and use them to build a statistical test for local second-order structure. This allows to identify differences in the ...
Understanding the nesting spatial behaviour of gorillas in the Kagwene Sanctuary, Cameroon
(Springer-Verlag, 2012-08)
We use spatial point pattern methods to analyse gorilla nest site data, and to enhance our understanding of the nesting behaviour of the Gorilla gorilla diehli in the Kagwene Sanctuary, Cameroon. Data were split into ...
On a class of non-stationary, compactly supported spatial covariance functions
(Springer-Verlag, 2013-02)
Globally supported covariance functions are generally associated with dense covariance matrices, meaning severe numerical problems in solution feasibility. These problems can be alleviated by considering methods yielding ...
Erythrocyte shape classification using integral-geometry-based methods
(Springer, 2015)
Erythrocyte shape deformations are related to different important illnesses. In this paper, we focus on one of the most important: the Sickle cell disease. This disease causes the hardening or polymerization of the hemoglobin ...