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Auteur Justin Berli
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Affiner la recherche Interroger des sources externesGuide to Maritime Informatics, ch. Maritime Network Analysis: Connectivity and Spatial Distribution / César Ducruet (2021)
Titre de série : Guide to Maritime Informatics, ch Titre : Maritime Network Analysis: Connectivity and Spatial Distribution Type de document : Chapitre/Contribution Auteurs : César Ducruet, Auteur ; Justin Berli Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2021 Importance : pp 299 - 317 Note générale : bibliographie Langues : Anglais (eng) Résumé : (auteur) In this chapter, we apply conventional graph-theory and complex network methods to a sample of port and inter-port shipping flows at and amongst the top 50 European ports in 2017. Such methods help to detect the main topological and geographic structures of this network in order to answer three main questions. First, why are certain port nodes better connected than others? Such a level of hierarchy is best approached by testing the scale-free and rich-club dimension of the network. For this we measure node connectivity in various ways, from local to global indices, all confirming inequality in traffic distribution. Second, what is the influence of cargo specialisation or diversity on the network structure? This relates to the concepts of multiplexity and assortativity, i.e. the ability of nodes to diversify their activity or to specialise. Two principal layers are analysed and compared, namely cargo and bulk, showing that larger ports and links are more diversified. Lastly, what are the substructures or geographic patterns underlying the distribution of maritime flows? To answer this, we examine the influence of physical distance on connectivity and on the emergence of subnetworks. Numéro de notice : H2021- Affiliation des auteurs : non IGN Nature : Chapître / contribution nature-HAL : ChOuvrScient DOI : 10.1007/978-3-030-61852-0_10 En ligne : https://doi.org/10.1007/978-3-030-61852-0_10 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=101882 
Titre de série : Geographies of maritime transport, Ch. 4 Titre : Geography versus topology in the evolution of the global container shipping network (1977-2016) Type de document : Chapitre/Contribution Auteurs : César Ducruet, Auteur ; Justin Berli Editeur : Camberley [Royaume Uni] : Edward Elgar Publishing Année de publication : 2020 Projets : 1-Pas de projet / Importance : pp 49 - 70 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] données spatiotemporelles
[Termes IGN] navire
[Termes IGN] système d'information géographique
[Termes IGN] théorie des graphes
[Termes IGN] transport maritimeRésumé : (Auteur) The dynamical properties of so-called spatial and complex networks are often overlooked in graph theory and network science in general. Container shipping provides a rare example of a global transport network that went through tremendous technological and geographic changes in the last decades or so. This chapter proposes for the first time an empirical analysis of no less than 40 years of inter-port vessel movement data (1977-2016) to describe the evolving properties of the global container shipping network. Main results confirm a number of stylized facts such as the growing size, connectivity, and centralization of this network due to several factors such as economies of scale in liner shipping and the rationalization of related maritime services, the emergence of hub ports, etc. We also provide a new cartography of how had the global container shipping network been geographically distributed over time, thereby highlighting major shifts in terms of port hierarchies and main corridors. We believe that this chapter will contribute to a better understanding of the complex linkages between network structure, technological change, and spatial change, opening the way for new research paths on maritime transport research and network science in general when focusing on evolutionary dynamics. Numéro de notice : H2020-002 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Autre URL associée : vers HAL Thématique : GEOMATIQUE Nature : Chapître / contribution nature-HAL : ChOuvrScient DOI : 10.4337/9781788976640.00008 Date de publication en ligne : 16/04/2020 En ligne : https://doi.org/10.4337/9781788976640.00008 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95084 Documents numériques
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Geography vs. topology... - pdf auteurAdobe Acrobat PDFSea-land interdependence in the global maritime network: the case of Australian port cities / Justin Berli in Networks and Spatial Economics, vol 18 n° 3 (September 2018)
Titre : Sea-land interdependence in the global maritime network: the case of Australian port cities Type de document : Article/Communication Auteurs : Justin Berli Année de publication : 2018 Projets : World Seastems / Ducruet, César Article en page(s) : pp 447 - 471 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] accessibilité
[Termes IGN] Australie
[Termes IGN] chemin le moins coûteux, algorithme du
[Termes IGN] chemin le plus court, algorithme du
[Termes IGN] connexité (topologie)
[Termes IGN] port
[Termes IGN] réseau de transportRésumé : (auteur) This article tackles the longstanding issue of intermodality head on. From a geomatics perspective, we model both maritime and road networks connecting port and non-port cities taking into account crucial features such as physical geography, shortest paths, and transport costs. This creates the opportunity to study a hybrid network – both planar and non-planar, and the centrality/accessibility of cities in this bi-layered network. Based on the case of Australia, main results convey new empirical findings on how port and urban hierarchies correlate with single-layered and bi-layered connectivity. We discuss main results in the light of network science, spatial science, and transport studies. Numéro de notice : A2018-499 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s11067-018-9403-4 Date de publication en ligne : 01/06/2018 En ligne : https://doi.org/10.1007/s11067-018-9403-4 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96889
in Networks and Spatial Economics > vol 18 n° 3 (September 2018) . - pp 447 - 471[article]
Titre : Experiments to distribute and parallelize map generalization processes Type de document : Article/Communication Auteurs : Guillaume Touya Année de publication : 2017 Projets : 1-Pas de projet / Ducruet, César Article en page(s) : pp 322 - 332 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] partitionnement
[Termes IGN] traitement parallèle
[Termes IGN] traitement réparti
[Vedettes matières IGN] GénéralisationRésumé : (Auteur) Automatic map generalization requires the use of computationally intensive processes often unable to deal with large datasets. Distributing the generalization process is the only way to make them scalable and usable in practice. But map generalization is a highly contextual process, and the surroundings of a generalized map feature needs to be known to generalize the feature, which is a problem as distribution might partition the dataset and parallelize the processing of each part. This paper proposes experiments to evaluate the past propositions to distribute map generalization, and to identify the main remaining issues. The past propositions to distribute map generalization are first discussed, and then the experiment hypotheses and apparatus are described. The experiments confirmed that regular partitioning was the quickest strategy, but less effective when taking context into account. The geographical partitioning, though less effective for now, is quite promising regarding the quality of the results as it better integrates the geographical context. Numéro de notice : A2017-827 Affiliation des auteurs : LASTIG COGIT (2012-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/00087041.2017.1413787 Date de publication en ligne : 19/02/2018 En ligne : https://doi.org/10.1080/00087041.2017.1413787 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89359
in Cartographic journal (the) > Vol 54 n° 4 (November 2017) . - pp 322 - 332[article]Exemplaires(1)
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contenu dans ICC 2017, the 28th International Cartographic Conference, à Washington, USA, 2–7 July 2017, proceedings / International cartographic association = association cartographique internationale (2017)
Titre : Experiments to distribute map generalization processes Type de document : Article/Communication Auteurs : Justin Berli Editeur : International Cartographic Association ICA - Association cartographique internationale ACI Année de publication : 2017 Conférence : ICC 2017, 28th International Cartographic Conference ICA 02/07/2017 07/07/2017 Washington DC Etats-Unis OA Proceedings of the ICA Importance : 10 p. Note générale : Bibliographie
Ce papier a reçu "2018 Henry Johns Award" for the most outstanding paper published in 2017Langues : Anglais (eng) Descripteur : [Termes IGN] généralisation automatique de données
[Termes IGN] partitionnement
[Termes IGN] prise en compte du contexte
[Termes IGN] traitement réparti
[Vedettes matières IGN] GénéralisationRésumé : (Auteur) Automatic map generalization requires the use of computationally intensive processes often unable to deal with large datasets. Distributing the generalization process is the only way to make them scalable and usable in practice. But map generalization is a highly contextual process, and the surroundings of a generalized map feature needs to be known to generalize the feature, which is a problem as distribution might partition the dataset and parallelize the processing of each part. This paper proposes experiments to evaluate the past propositions to distribute map generalization, and to identify the main remaining issues. The past propositions to distribute map generalization are first discussed, and then the experiment hypotheses and apparatus are described. The experiments confirmed that regular partitioning was the quickest strategy, but also the less effective in taking context into account. The geographical partitioning, though less effective for now, is quite promising regarding the quality of the results as it better integrates the geographical context. Numéro de notice : C2017-010 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.5194/ica-proc-1-8-2018 Date de publication en ligne : 16/05/2018 En ligne : http://dx.doi.org/10.5194/ica-proc-1-8-2018 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86222 Documents numériques
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Experiments to distribute map generalization processes - pdf éditeurAdobe Acrobat PDF
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Experiments to distribute map generalization processes - pdf éditeur nouvelle versionAdobe Acrobat PDF
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