1,721,148 research outputs found
La croissance des villes nouvelles en Grande-Bretagne
No full textMonnet Jean-Marie. La croissance des villes nouvelles en Grande-Bretagne. In: Hommes et Terres du Nord, 1963/1. pp. 100-102
Semis de points LiDAR aéroporté - Parc naturel régional du Massif des Bauges, partie Haute-Savoie - 2018
No full textSemis de points LiDAR - Parc naturel régional du Massif des Bauges, partie Haute-Savoie. Le levé LiDAR a été réalisé par l'entreprise Opsia pour le PNR du Massif des Bauges dans le cadre du projet PROTEST (subvention ADEME 1703C0069).
Les conditions générales de l'acquisition sont les suivantes :
Date de l'acquisition : 10-11/09/2018
Laser : Riegl LMS Q780
Les paramètres du vol LiDAR sont les suivants :
Hauteur de vol : 1050m / sol
Vitesse de vol : 160 km/h
Angle de scan : 60°
Densité moyenne d'impulsions : 13,5 impulsions / m²
Densité de points sol après classification : 6.4 point / m²
Les points sont fournis dans le système RGF93-Lambert 93 / IGN69 et triés en 5 classes : sol (2), sursol (4), eau (9), pylônes et câbles (10) et autres (1 : voitures, panneaux, etc.).
Les données sont constituées des fichiers suivants :
Plan de situation (pdf)
Rapport d'acquisition (pdf)
Tableau d'assemblage (geopackage)
Trajectographie (1 archive zip de 400 Mo contenant 3 fichiers texte)
Semis de points classés (2 archives zip totalisant 52 Go, contenant des fichiers au format LAZ, cf https://laszip.org/)
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UK border security: issues, systems and recent reforms
No full textIssues of border security feature frequently in contemporary British politics as major public policy problems. Among the areas of concern are terrorism, drug trafficking, human trafficking and people smuggling, the need to exercise controls for human, plant and animal health protection and the illicit trade in weapons. This paper evaluates the National Security Strategy approach and aspirations regarding border security. In particular, this paper reviews current UK border strategy, examines trends in global movements with special regard to the UK’s position and then considers three priority areas of UK border strategy:people movement controlsdrug trafficking controlsanti-terrorism controls.The paper also considers after-entry controls or responses, recognising that there will continue to be illicit entries of people and controlled goods and the need to manage the asylum request process in order to effect the removal of those persons whose claims are not accepted or given leave to remain on other groun
lidaRtRee: R package for forest analysis with airborne laser scanning (LiDAR) data
No full textlidaRtRee is an R package that provides functions for forest analysis using airborne laser scanning (LiDAR remote sensing) data:
tree detection (method 1 in Eysn et al., 2015) and segmentation;
forest parameters estimation and mapping with the area-based approach.
It includes complementary steps for forest mapping:
co-registration of field plots with LiDAR data (Monnet and Mermin, 2014);
extraction of both physical (gaps, edges, trees) and statistical features from LiDAR data useful for e.g. habitat suitability modeling (Glad et al., 2020) and forest maturity mapping (Fuhr et al., 2022);
model calibration with ground reference;
maps export.
It is available on CRAN.
Tutorials are available in the documentation.lidaRtRee est un package R pour l'analyse de la structure des forêts à partir de données acquises par scanner laser (LiDAR) aéroporté :
détection d'arbres (méthode 1 dans Eysn et al., 2015) et segmentation ;
estimation de variables forestière et cartographie par approche surfacique.
Il propose des fonctions additionnelles telles que :
géoréférencement des données de terrain avec les données LiDAR (Monnet and Mermin, 2014);
extraction de statistiques et d'objets (trouées, lisières, arbres) utilisables par exemple pour la modélisation d'habitat (Glad et al., 2020) et la cartographie de la maturité des forêts (Fuhr et al., 2022);
calibration de modèles avec des données de terrrain ;
production de cartes.
Le package est disponible sur CRAN.
Des tutoriels sont disponibles dans la documentation
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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