Search results for "cART"
showing 10 items of 2010 documents
La battaglia di Himera (480 a.C.) nelle inerpretazioni storiografiche antiche e nelle moderne riletture di G. Grote ed E.A. Freeman
2014
Il sincronismo tra le battaglie di Himera e Salamina è stato codificato dalla storiografia antica con l’intento di unificare la Grecità, metropolitana e occidentale, nella comune celebrazione della vittoria contro il barbaro: un nome che accomuna indistintamente Cartaginesi e Persiani. Le due vittorie vennero interpretate tout court come un trionfo della civiltà sulla barbarie. Su questa stessa linea interpretativa si sono mosse alcune analisi della storiografia moderna (XIX-XX sec.) anch’esse caratterizzate da forti connotazioni ideologiche. L’attenzione si sofferma in particolare sulle riletture che degli eventi del 480 a.C. hanno dato G. Grote ed E. A. Freeman; nei loro lavori è possibil…
Resuttano (IGM 260 III SO)
2002
Il volume illustra i risultati della prospezione archeologica condotta in un'area della Sicilia centro-settentrionale, allo spartiacque tra i fiumi Imera Settentrionale, Imera Meridionale e Platani. Si ricostruiscono le dinamiche dell'insediamento antico dalla preistoria all'età tardo-antica e alto medievale, nonché il sistema della viabilità antica, con il supporto della carta archeologica e della carta della visibilità dei suoli, realizzate tramite GIS.
Location-Free Spectrum Cartography
2019
Spectrum cartography constructs maps of metrics such as channel gain or received signal power across a geographic area of interest using spatially distributed sensor measurements. Applications of these maps include network planning, interference coordination, power control, localization, and cognitive radios to name a few. Since existing spectrum cartography techniques require accurate estimates of the sensor locations, their performance is drastically impaired by multipath affecting the positioning pilot signals, as occurs in indoor or dense urban scenarios. To overcome such a limitation, this paper introduces a novel paradigm for spectrum cartography, where estimation of spectral maps rel…
Data-Driven Spectrum Cartography via Deep Completion Autoencoders
2019
Spectrum maps, which provide RF spectrum metrics such as power spectral density for every location in a geographic area, find numerous applications in wireless communications such as interference control, spectrum management, resource allocation, and network planning to name a few. Spectrum cartography techniques construct these maps from a collection of measurements collected by spatially distributed sensors. Due to the nature of the propagation of electromagnetic waves, spectrum maps are complicated functions of the spatial coordinates. For this reason, model-free approaches have been preferred. However, all existing schemes rely on some interpolation algorithm unable to learn from data. …
Spectrum cartography using adaptive radial basis functions: Experimental validation
2017
In this paper, we experimentally validate the functionality of a developed algorithm for spectrum cartography using adaptive Gaussian radial basis functions (RBF). The RBF are strategically centered around representative centroid locations in a machine learning context. We assume no prior knowledge about neither the power spectral densities (PSD) of the transmitters nor their locations. Instead, the received signal power at each location is estimated as a linear combination of different RBFs. The weights of the RBFs, their Gaussian decaying parameters and locations are jointly optimized using expectation maximization with a least squares loss function and a quadratic regularizer. The perfor…
Une carte et une base de données pour les formations à silex dans le Sud de la France.
2012
Programme et résumés, page 139; Une carte est en cours de réalisation pour figurer les principales formations contenant des silex dans le Sud de la France. Elle est le fruit d'une collaboration entre des acteurs impliqués dans la problématique de caractérisation de la provenance des silex. Elle regroupe les résultats de leurs prospections systématiques ou ciblées dans cinq régions (Auvergne, Rhône-Alpes, Provence Alpes Côte-d'Azur, Aquitaine, Midi-Pyrénées). Elle intègre le dépouillement d'un nombre considérable de documents : - 529 cartes géologiques au 1/50 000 et leurs notices ; - Plus de 200 fiches issues de la base de données du sous-sol BSS du BRGM, qui permettent de visualiser des lo…
Detection of a reservoir water level using shape similarity metrics
2017
The matching between reservoirs’ water edge and digital elevation model’s (DEM) contour lines allowed determining the water level at the acquisition date of satellite images. A preliminary study was conducted on the Castello dam (Magazzolo Lake), between Alessandria della Rocca and Bivona (Agrigento, south-Italy). The accuracy assessment of the technique was than evaluated from the comparison between classified and reference objects using similarity metrics about the shape, theme, edge and position, through the plugin STEP of open source software GIS. Moreover, an independent GIS technique was implemented to evaluate the water level, based on a distances’ array between existing contour line…
Ferroviarios [Document gràfic] : arrollemos al fascio
Grans rodes de tren, amb l'estrella vermella, atropellant els símbols feixistes
The new configuration of the Valencian party system. An institutional approach
2018
International audience; The main objective of this article is to explain the evolution of the party system of the Valencian Community (Spain) between 1978 and 2015. We will start from a historical neo-institutionalist approach and a methodology focused on historical analysis (path dependence and critical junctures). It will be centered on the changes produced in political parties, in terms of the Valencian cartelization and identity and its present position. This way, three working sub-hypotheses are to be explained: H1a: parties have had a continuity dynamic that has changed due to abrupt changes in the environment; H1b: political forces have taken advantage of these events to obtain elect…
Siose Valencia 2005: resultados, aplicaciones y comparación con Corine
2011
SIOSE, Spanish acronym standing for Land Cover and Use Information System of Spain, is the most detailed Geographic Information System ever created in Spain about land cover and land use. This GIS gives objective information, photo-interpreted from aerial and satellite imagery, describing the different land covers and land uses. Since SIOSE gathers a big deal of information (more than 157.000 different polygons just in the Land of Valencia), the quantity of possible researches coming from it is huge and ranging from environmental and biodiversity subjects to agricultural or urban areas topics. These possible researches would be especially appropriate on a local level, since SIOSE has a very…