Centre dedocumentation
scientifique

Use of automated change detection and VGI sources for identifying and validating urban land use change / Ana-Maria Olteanu-Raimond in Remote sensing, vol 12 n° 7 (April 2020)  

Public [article]  inRemote sensing > vol 12 n° 7 (April 2020) . - n° 1186 Titre : Use of automated change detection and VGI sources for identifying and validating urban land use change Type de document : Article/Communication Auteurs : Ana-Maria Olteanu-Raimond , Auteur ; L. See, Auteur ; M. Schultz, Auteur ; Giles M. Foody, Auteur ; M. Riffler, Auteur ; T. Gasber, Auteur ; Laurence Jolivet , Auteur ; Arnaud Le Bris , Auteur ; Yann Méneroux , Auteur ; Lanfa Liu, Auteur ; Marc Poupée, Auteur ; Marie Gombert, Auteur Année de publication : 2020 Projets : Landsense / Raimond, Ana-Maria Article en page(s) : n° 1186 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes descripteurs IGN] carte d'utilisation du sol [Termes descripteurs IGN] cartographie collaborative [Termes descripteurs IGN] changement d'utilisation du sol [Termes descripteurs IGN] détection automatique [Termes descripteurs IGN] détection de changement [Termes descripteurs IGN] données localisées des bénévoles [Termes descripteurs IGN] estimation de précision [Termes descripteurs IGN] science citoyenne [Termes descripteurs IGN] zone urbaine Résumé : (Auteur) Land use and land cover (LULC) mapping is often undertaken by national mapping agencies, where these LULC products are used for different types of monitoring and reporting applications. Updating of LULC databases is often done on a multi-year cycle due to the high costs involved, so changes are only detected when mapping exercises are repeated. Consequently, the information on LULC can quickly become outdated and hence may be incorrect in some areas. In the current era of big data and Earth observation, change detection algorithms can be used to identify changes in urban areas, which can then be used to automatically update LULC databases on a more continuous basis. However, the change detection algorithm must be validated before the changes can be committed to authoritative databases such as those produced by national mapping agencies. This paper outlines a change detection algorithm for identifying construction sites, which represent ongoing changes in LU, developed in the framework of the LandSense project. We then use volunteered geographic information (VGI) captured through the use of mapathons from a range of different groups of contributors to validate these changes. In total, 105 contributors were involved in the mapathons, producing a total of 2778 observations. The 105 contributors were grouped according to six different user-profiles and were analyzed to understand the impact of the experience of the users on the accuracy assessment. Overall, the results show that the change detection algorithm is able to identify changes in residential land use to an adequate level of accuracy (85%) but changes in infrastructure and industrial sites had lower accuracies (57% and 75 %, respectively), requiring further improvements. In terms of user profiles, the experts in LULC from local authorities, researchers in LULC at the French national mapping agency (IGN), and first-year students with a basic knowledge of geographic information systems had the highest overall accuracies (86.2%, 93.2%, and 85.2%, respectively). Differences in how the users approach the task also emerged, e.g., local authorities used knowledge and context to try to identify types of change while those with no knowledge of LULC (i.e., normal citizens) were quicker to choose ‘Unknown’ when the visual interpretation of a class was more difficult. Numéro de notice : A2020-243 Affiliation des auteurs : UMR LaSTIG+IGN+Ext Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3390/rs12071186 date de publication en ligne : 07/04/2020 En ligne : https://doi.org/10.3390/rs12071186 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95217 [article]

Place and sentiment-based life story analysis: From the Spanish republican army to the French resistance / Catherine Dominguès in Revue française des sciences de l'information et de la communication, vol 17 (2019)  

Public [article]  inRevue française des sciences de l'information et de la communication > vol 17 (2019) . - n° 7228 Titre : Place and sentiment-based life story analysis: From the Spanish republican army to the French resistance Type de document : Article/Communication Auteurs : Catherine Dominguès , Auteur ; Laurence Jolivet , Auteur ; Carmen Brando , Auteur ; Marion Cargill, Auteur Année de publication : 2019 Projets : 1-Pas de projet / Article en page(s) : n° 7228 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Toponymie [Termes descripteurs IGN] analyse sémantique [Termes descripteurs IGN] appariement de données localisées [Termes descripteurs IGN] apprentissage dirigé [Termes descripteurs IGN] carte thématique [Termes descripteurs IGN] Espagne [Termes descripteurs IGN] expression orale [Termes descripteurs IGN] France (administrative) [Termes descripteurs IGN] guerre [Termes descripteurs IGN] histoire [Termes descripteurs IGN] linguistique [Termes descripteurs IGN] ontologie [Termes descripteurs IGN] terminologie Résumé : (auteur) In 2008, the Network of Actors for the History and Memory of Immigration (RAHMI) launched an experimental gathering program to collect the forgotten memory of immigrant populations involved in the local community. Various groups of people were targeted by this collection, which made it possible to record life stories, including those of Spanish Republicans who went into exile in France between 1936 and 1939, and participated in the French Resistance. The MATRICIEL project (PEPS CNRS UPE 2016) focused on the migration of these Spanish Republicans in terms of the places mentioned in their stories, and the sentiments associated with these places. The project aimed to mainstream the migrants’ voices in the analysis; the objects of study chosen: the places, designated by a proper name: Barcelona, or a common name: internment camp, and the associated sentiments distinguished by their polarity: positive or negative, contribute to enhancing oral archives for the construction of an immigration memory. In this article, we present the approach implemented for a multidisciplinary analysis of the life story corpus, which combines methods and tools for natural language processing and mapping. The identification of common noun places mentioned in the stories was conducted through a supervised learning model. The identification and subsequent mapping of proper name places highlight the spatial distribution of the witnesses’ life courses, determined by the historical context and personal choices. The semi-automatic sentiment annotation adds polarity to the stories. In perspective, the analysis of common noun place types will make it possible to evaluate the granularity used by witnesses to describe their lived spaces; their location will help to specify the spatiality of the stories. Numéro de notice : A2019-590 Affiliation des auteurs : UMR LaSTIG+Ext Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueNat DOI : 10.4000/rfsic.7228 date de publication en ligne : 01/09/2019 En ligne : https://doi.org/10.4000/rfsic.7228 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94547 [article]

Engraved footprints from the past. Retrieving cartographic geohistorical data from the Cassini Carte de France, 1750-1789 / Bertrand Duménieu (2019)  

Public Titre : Engraved footprints from the past. Retrieving cartographic geohistorical data from the Cassini Carte de France, 1750-1789 Type de document : Article/Communication Auteurs : Bertrand Duménieu , Auteur ; Julien Chadeyron, Auteur ; Pascal Cristofoli, Auteur ; Julien Perret , Auteur ; Laurence Jolivet , Auteur ; Stéphane Baciocchi, Auteur ; Stéphane Gomis, Auteur ; Maurizio Gribaudi, Auteur ; Isabelle Langlois, Auteur ; Claude Motte, Auteur ; Marie-Christine Vouloir, Auteur Congrès : Congrès: ICC 2019, 29th International Cartographic Conference ICA Mapping everything for everyone (15 - 20 juillet 2019; Tokyo, Japon) , Commanditaire Editeur : International Cartographic Association ICA Année de publication : 2019 Importance : 2 p. Format : 21 x 30 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes descripteurs IGN] base de données localisées [Termes descripteurs IGN] carte de Cassini [Termes descripteurs IGN] carte de France [Termes descripteurs IGN] code source libre [Termes descripteurs IGN] données vectorielles [Termes descripteurs IGN] esthétique cartographique [Termes descripteurs IGN] extraction de données [Termes descripteurs IGN] histoire de la cartographie [Termes descripteurs IGN] système d'information géographique Résumé : (auteur) Antique maps are full of engraved geohistorical features. They provide representations of past states of the geographical space and are favored by historians and social scientists for their uniqueness and coherence. Working on a GIS dedicated to the history of the French territory, we extracted spatial information from the Cassini ​Carte de France (full name ​Carte Générale & Particulière de la France​) as vector data. Based on the first geodetic survey of France [1, 4], this well-known and monumental map has been drawn on 182 paper sheets of size 610 x 955 mm at the scale of 1:86,400 or 1 line for 100~toises (1 inch to 1.36 miles). It depicts the French territory with fine-grained information about populated and named places, settlements, landscape features, hydrographic, ecclesiastical and road networks [3, 5, 6, 7]. As a case study, the sheet numbered 52 provided more than 6 800 ​spatial footprints that we have stored as a geographic database. Following the distinction made by Cassini himself between “geometric” and “topographic” entities, our geographical database is composed of two families of data, namely ​Triangulated Geographical Entities (“geometric” entities in Cassini’s own terms) whose geodetic properties are partly documented and ​Relative Geographical Entities (“topographic” in Cassini’s terms) which are dependent on and located relative to the former (Fig. 1). Those entities are analytically distinct but come together from a single artifact: the primary source they are engraved in during the mapmaking process. Because this process of embeddedness is not fully documented, retrieving both classes of entities called for a cautious cartographic visualisation with similar semiological rules and aesthetics as the original historical map (Fig. 2). This “Cassini map style” preserves the cartographic properties of the geohistorical data extracted from this primary source: generalisation, scale, spatial granularity and the overall intentions of the mapmakers [2]. Often neglected, such properties are constitutive components and dimensions of the mapping style which forms the context and gives crucial information on the accuracy and the relationships between geo-historical data enclosedin.Ourposterprovidesarenewedcartographicvisualisationofthesheet52n​dsheetofthe​CartedeFrance​, centred on the french cities of Clermont, Riom and Thiers. It reveals unnoticed cartographic entities that were hardly legible in the original map. The historiography of cartography has been largely, and for a long time, based on critical edition of old maps published as non-georeferenced ​facsimile​. We propose to renew this approach by producing digital maps from vector geographic databases that combine the aesthetics and semiology of old map styles with the modelling capabilities of modern GIS. Numéro de notice : C2019-036 Affiliation des auteurs : UMR LaSTIG+Ext Thématique : GEOMATIQUE Nature : Poster nature-HAL : Poster-avec-CL DOI : 10.5194/ica-abs-1-68-2019 En ligne : https://doi.org/10.5194/ica-abs-1-68-2019 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95335

Feedbacks on VGI in-situ campaign for updating LULC data / Laurence Jolivet (2019)  

Public Titre : Feedbacks on VGI in-situ campaign for updating LULC data Type de document : Article/Communication Auteurs : Laurence Jolivet , Auteur ; Ana-Maria Olteanu-Raimond , Auteur ; Marie-Dominique Van Damme , Auteur ; Marie Gombert, Auteur ; S. Fauret, Auteur ; Frédéric Saffroy, Auteur Congrès : Congrès: ICC 2019, 29th International Cartographic Conference ICA Mapping everything for everyone (15 - 20 juillet 2019; Tokyo, Japon) , Commanditaire Editeur : International Cartographic Association ICA Année de publication : 2019 Projets : Landsense / Raimond, Ana-Maria Importance : 2 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes descripteurs IGN] 1:5.000 [Termes descripteurs IGN] application web [Termes descripteurs IGN] données localisées des bénévoles [Termes descripteurs IGN] Institut national de l'information géographique et forestière (France) [Termes descripteurs IGN] mise à jour de base de données [Termes descripteurs IGN] Occitanie (région 2016) [Termes descripteurs IGN] occupation du sol [Termes descripteurs IGN] production participative [Termes descripteurs IGN] utilisation du sol Résumé : (auteur) The goal of this paper is to present the defined strategy for running an in-situ campaign about LULC authoritative data monitoring and to give an overview about the data collected during the campaign. The targeted database is OCS-GE containing LULC data which is produced by IGN France for a 1: 5.000 scale use.A mobile application named PAYSAGES was implemented for collecting in-situ information. Contributions have been recorded about edition of uses for buildings, quarries, construction areas, agricultural fields and about validation of automatically detected changes. Numéro de notice : C2019-045 Affiliation des auteurs : UMR LaSTIG seul Thématique : GEOMATIQUE Nature : Poster nature-HAL : Poster-avec-CL DOI : 10.5194/ica-abs-1-152-2019 date de publication en ligne : 15/07/2019 En ligne : https://www.abstr-int-cartogr-assoc.net/1/152/2019/ Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95339

Récits d’immigration, sources orales et cartographie des émotions : le projet MATRICIEL / Carmen Brando (2019)

Public Titre : Récits d’immigration, sources orales et cartographie des émotions : le projet MATRICIEL Type de document : Article/Communication Auteurs : Carmen Brando , Auteur ; Laurence Jolivet , Auteur ; Catherine Dominguès , Auteur Congrès : EPHE 2019, séminaire Histoire orale, archives orales et patrimoine oral. Entre l'oral et l'écrit (16 janvier 2019; Paris), Commanditaire Editeur : Paris : Centre de recherches historiques CRH Année de publication : 2019 Projets : MATRICIEL / Langues : Français (fre) Résumé : (auteur) Présentation du projet MATRICIEL au Séminaire de l'EPHE Histoire orale, archives orales et patrimoine oral. Entre l'oral et l'écrit. Cycle de conférences 2018-2019 sur les usages scientifiques de la source orale. Numéro de notice : C2019-042 Affiliation des auteurs : UMR LaSTIG+Ext Nature : Conférence invitée nature-HAL : ComSansActesPubliés-Unpublished DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95413

Valorisation de récits de vie de Républicains espagnols / Catherine Dominguès (2019) 

Permalink

An experimental framework for integrating citizen and community science into land cover, land use, and land change detection processes in a national mapping agency / Ana-Maria Olteanu-Raimond in Land, vol 7 n° 3 (September 2018)  

Permalink

Analyse et représentation cartographique de récits de vie de Républicains espagnols / Catherine Dominguès (2018)

Permalink

Projet PEPS MATRICIEL, lieux des migrants à travers des récits de vie : mots, perceptions, émotions, cartes / Catherine Dominguès (2018) 

Permalink

Analyse et cartographie des sentiments dans des récits de vie de migrants / Catherine Dominguès (2017)  

Permalink

Characterizing maps from visual properties / Catherine Dominguès (2017)  

Permalink

Crowd and community sourced data quality assessment / Laurence Jolivet (2017)  

Permalink

Mapping experiences of personal appropriation of a new place from a diachronic perspective / Carmen Brando (2017)

Permalink

Potentiel des données géolocalisées issues de la foule pour les questions de mobilité et tourisme : quelques exemples issus de la littérature / Laurence Jolivet (2017) 

Permalink

Sols artificialisés et processus d’artificialisation des sols : déterminants, impacts et leviers d’action / B. Béchet (2017)    

Permalink