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Classification and clustering of buildings for understanding urban dynamics 建筑的分类和聚类，以了解城市动态
IF 0.1
Revue Internationale de Geomatique Pub Date : 2022-07-01 DOI: 10.3166/rig31.303-328
Joan Perez, Giovanni Fusco, Y. Sadahiro
{"title":"Classification and clustering of buildings for understanding urban dynamics","authors":"Joan Perez, Giovanni Fusco, Y. Sadahiro","doi":"10.3166/rig31.303-328","DOIUrl":"https://doi.org/10.3166/rig31.303-328","url":null,"abstract":"This paper presents different methods implemented with the aim of studying urban dynamics at the building level. Building types are identified within a comprehensive vector-based building inventory, spanning over at least two time points. First, basic morphometric indicators are computed for each building: area, floor-area, number of neighbors, elongation, and convexity. Based on the availability of expert knowledge, different types of classification and clustering are performed: supervised tree-like classificatory model, expert-constrained k-means and combined SOM-HCA. A grid is superimposed on the test region of Osaka (Japan) and the number of building types per cell and for each period is computed, as well as the differences between each period. Mappings are then performed, showing that building types have specific locations and dynamics. In some extreme cases, a specific building type can even gradually replace a type on a declining dynamic. Questions of data preparation, and clustering validation are also dealt with, underlining the interest of assessing the spatial distribution of clusters.","PeriodicalId":41172,"journal":{"name":"Revue Internationale de Geomatique","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43086038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Extraction et mise en contexte spatial des propositions relatives au transport dans le Grand Débat National 国家大辩论中运输提案的提取和空间背景
IF 0.1
Revue Internationale de Geomatique Pub Date : 2022-07-01 DOI: 10.3166/rig31.329-354
Jacques Fize, Lucile Sautot, Martin Lentschat, L. Dujourdy, L. Journaux, Mohamed Hilaf
{"title":"Extraction et mise en contexte spatial des propositions relatives au transport dans le Grand Débat National","authors":"Jacques Fize, Lucile Sautot, Martin Lentschat, L. Dujourdy, L. Journaux, Mohamed Hilaf","doi":"10.3166/rig31.329-354","DOIUrl":"https://doi.org/10.3166/rig31.329-354","url":null,"abstract":"Le Grand Débat National, lancé début 2019 par Emmanuel Macron, président de la République, pour répondre au mouvement social des « Gilets jaunes », a permis de collecter les contributions de citoyens sur la transition écologique via une plateforme en ligne. Dans cet article, nous exploitons le corpus constitué par ces contributions pour identifier des zones où les participants demandent le développement de pistes cyclables et d’équipements ferroviaires. Pour cela, nous avons créé un modèle de classification permettant d’identifier les contributions traitant de la thématique du transport et proposé une méthode d’extraction de contributions traduisant les propositions des contributeurs. A l’aide des codes postaux donnés par les contributeurs, nous avons cherché à expliquer la fréquence spatiale des demandes, en lien avec leur contexte résidentiel (urbain, périurbain ou rural) et l’accessibilité des commerces et services.","PeriodicalId":41172,"journal":{"name":"Revue Internationale de Geomatique","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41757803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Editorial 编辑
IF 0.1
Revue Internationale de Geomatique Pub Date : 2022-07-01 DOI: 10.3166/rig31.239-240
F. Pinet, D. Josselin, Alain Bouju
{"title":"Editorial","authors":"F. Pinet, D. Josselin, Alain Bouju","doi":"10.3166/rig31.239-240","DOIUrl":"https://doi.org/10.3166/rig31.239-240","url":null,"abstract":"","PeriodicalId":41172,"journal":{"name":"Revue Internationale de Geomatique","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41823569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
NAMO Géoweb Namo Geoweb
IF 0.1
Revue Internationale de Geomatique Pub Date : 2022-07-01 DOI: 10.3166/rig31.355-376
J. Chery, Marie Gradeler, Vincent Bonnal
{"title":"NAMO Géoweb","authors":"J. Chery, Marie Gradeler, Vincent Bonnal","doi":"10.3166/rig31.355-376","DOIUrl":"https://doi.org/10.3166/rig31.355-376","url":null,"abstract":"Les besoins de valoriser et de partager des informations génériques et originales de différents projets de recherche, ont conduit à concevoir une plateforme géoweb dédiée, dénommée NAMO. Sa conception utilise des fonctionnalités ouvertes, libres et gratuites qui montrent leur souplesse dans une démarche agile et itérative. C’est en particulier le développement de deux dimensions de valorisation et de positionnement en géoweb 2.0 qui est souligné : la cartographie narrative et la modélisation systémique. Les dispositifs d’usage de l’information géographique, en particulier dans les démarches de co-construction et de science ouverte, peuvent ainsi être mieux outillés.","PeriodicalId":41172,"journal":{"name":"Revue Internationale de Geomatique","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49447930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Implementation of a solar model and shadow plotting in the context of a 2D GIS 二维GIS环境下太阳模型和阴影绘制的实现
IF 0.1
Revue Internationale de Geomatique Pub Date : 2022-07-01 DOI: 10.3166/rig31.241-263
T. Leduc, X. Stavropulos-Laffaille, I. Requena-Ruiz
{"title":"Implementation of a solar model and shadow plotting in the context of a 2D GIS","authors":"T. Leduc, X. Stavropulos-Laffaille, I. Requena-Ruiz","doi":"10.3166/rig31.241-263","DOIUrl":"https://doi.org/10.3166/rig31.241-263","url":null,"abstract":"The adaptation of public spaces to episodes of intense heat is now a major challenge for cities. With this in mind, this article presents a contribution aimed at delineating and handling the shadows on the ground or in a horizontal plane at a given height, whether it comes from buildings, street furniture or the tree cover. After a comparison with shadows obtained via two reference tools, we present two urban sites that mix shadows of different origins and, in addition, different indicators. The results of the simulations are compared with pyranometric surveys carried out on site. The aim of these indicators is to assist urban designers with solutions that make it possible to distinguish the respective shadow contributions, their annual evolution and potential spatial or temporal continuities.","PeriodicalId":41172,"journal":{"name":"Revue Internationale de Geomatique","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49548027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Building types in France 法国的建筑类型
IF 0.1
Revue Internationale de Geomatique Pub Date : 2022-07-01 DOI: 10.3166/rig31.265-302
Allessandro Araldi, David Emsellem, Giovanni Fusco, A. Tettamanzi, Denis Overal
{"title":"Building types in France","authors":"Allessandro Araldi, David Emsellem, Giovanni Fusco, A. Tettamanzi, Denis Overal","doi":"10.3166/rig31.265-302","DOIUrl":"https://doi.org/10.3166/rig31.265-302","url":null,"abstract":"The identification and description of building typologies play a fundamental role in the understanding of the overall built-up form. A growing body of research is developing and implementing sophisticated, computer-aided protocols for the identification of building typologies. This paper shares the same goal. An innovative data-driven procedure for the unsupervised identification and description of building types and organization is here presented. After a specific pre-processing procedure, we develop an unsupervised clustering combining a new algorithm of Naive Bayes inference and hierarchical ascendant approaches relying on six morphometric features of buildings. This protocol allows us to identify groups of buildings sharing specific similar morphological characteristics and their overall structure at different aggregation levels. The proposed methodology is implemented and evaluated on the overall ordinary (e.g. not-specialized) building stock of France.","PeriodicalId":41172,"journal":{"name":"Revue Internationale de Geomatique","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49212305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatio-temporal pattern detection in spatio-temporal graphs 时空图中的时空模式检测
IF 0.1
Revue Internationale de Geomatique Pub Date : 2022-07-01 DOI: 10.3166/rig31.377-400
Kamaldeep Singh Oberoi, Géraldine Del Mondo
{"title":"Spatio-temporal pattern detection in spatio-temporal graphs","authors":"Kamaldeep Singh Oberoi, Géraldine Del Mondo","doi":"10.3166/rig31.377-400","DOIUrl":"https://doi.org/10.3166/rig31.377-400","url":null,"abstract":"Spatio-temporal (ST) graphs have been used in many application domains to model evolving ST phenomenon. Such models represent the underlying structure of the phenomenon in terms of its entities and different types of spatial interactions between them. The reason behind using graph-based models to represent ST phenomenon is due to the existing well-established graph analysis tools and algorithms which can be directly applied to analyze the phenomenon under consideration. In this paper, considering the use case of two distinct, highly dynamic phenomena - invasive team sports, with a focus on handball and urban road traffic, we propose a spatio-temporal graph model applicable to both these phenomena. Different types of entities and spatial relations which make up these phenomena are highlighted to formalize the graph. Furthermore, the idea of graph-based pattern detection in both these phenomena is explored. Different types of ST patterns for both ST phenomena are discussed and the problem of pattern detection is formalized as the problem of subgraph isomorphism for dynamic graphs. Finally, the results of our algorithm to detect random ST patterns in random ST graphs are presented. The ideas discussed in this paper are applicable to other ST phenomena as well.","PeriodicalId":41172,"journal":{"name":"Revue Internationale de Geomatique","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42567439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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