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VGDI – advancing the concept: Volunteered geo-dynamic information and its benefits for population dynamics modeling / Christoph Aubrecht in Transactions in GIS, vol 21 n° 2 (April 2017)
[article]
Titre : VGDI – advancing the concept: Volunteered geo-dynamic information and its benefits for population dynamics modeling Type de document : Article/Communication Auteurs : Christoph Aubrecht, Auteur ; Dilek Özceylan Aubrecht, Auteur ; Joachim Ungar, Auteur ; et al., Auteur Année de publication : 2017 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] connaissance thématique
[Termes IGN] dimension temporelle
[Termes IGN] données localisées des bénévoles
[Termes IGN] extraction de données
[Termes IGN] géomatique
[Termes IGN] modèle dynamiqueRésumé : (auteur) The concept of Volunteered Geographic Information (VGI) has progressed from being an exotic prospect to making a profound impact on GIScience and geography in general, as initially anticipated. However, while massive and manifold data is continuously produced voluntarily and applications are built for information and knowledge extraction, the initially introduced concept of VGI lacks certain methodological perspectives in this regard which have not been fully elaborated. In this article we highlight and discuss an important gap in this concept, i.e. the lack of formal acknowledgment of temporal aspects. By coining the proposed advanced framework ‘Volunteered Geo-Dynamic Information’ (VGDI), we attempt to lay the ground for full conceptual and applied spatio-temporal integration. To illustrate that integrative approach of VGDI and its benefits, we describe the potential impact on the field of dynamic population distribution modeling. While traditional approaches in that domain rely on survey-based data and statistics as well as static geographic information, the use of VGDI enables a dynamic setup. Foursquare venue and user check-in data are presented for a test site in Lisbon, Portugal. Two core modules of spatio-temporal population assessment are thereby addressed, namely time use profiling and target zone characterization, motivated by the potential integration in existing population dynamics frameworks such as the DynaPop model. Numéro de notice : A2017-165 Affiliation des auteurs : non IGN Thématique : SOCIETE NUMERIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12203 En ligne : http://dx.doi.org/DOI: 10.1111/tgis.12203 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84699
in Transactions in GIS > vol 21 n° 2 (April 2017)[article]Assessing crowdsourced POI quality: combining methods based on reference data, history, and spatial relations / Guillaume Touya in ISPRS International journal of geo-information, vol 6 n° 3 (March 2017)
[article]
Titre : Assessing crowdsourced POI quality: combining methods based on reference data, history, and spatial relations Type de document : Article/Communication Auteurs : Guillaume Touya , Auteur ; Vyron Antoniou, Auteur ; Ana-Maria Olteanu-Raimond , Auteur ; Marie-Dominique Van Damme , Auteur Année de publication : 2017 Projets : ENERGIC / Capineri, Cristina Article en page(s) : pp 1 - 29 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] analyse multicritère
[Termes IGN] changement temporel
[Termes IGN] données localisées des bénévoles
[Termes IGN] évaluation des données
[Termes IGN] OpenStreetMap
[Termes IGN] point d'intérêt
[Termes IGN] production participative
[Termes IGN] qualité des donnéesRésumé : (Auteur) With the development of location-aware devices and the success and high use of Web 2.0 techniques, citizens are able to act as sensors by contributing geographic information. In this context, data quality is an important aspect that should be taken into account when using this source of data for different purposes. The goal of the paper is to analyze the quality of crowdsourced data and to study its evolution over time. We propose two types of approaches: (1) use the intrinsic characteristics of the crowdsourced datasets; or (2) evaluate crowdsourced Points of Interest (POIs) using external datasets (i.e., authoritative reference or other crowdsourced datasets), and two different methods for each approach. The potential of the combination of these approaches is then demonstrated, to overcome the limitations associated with each individual method. In this paper, we focus on POIs and places coming from the very successful crowdsourcing project: OpenStreetMap. The results show that the proposed approaches are complementary in assessing data quality. The positive results obtained for data matching show that the analysis of data quality through automatic data matching is possible but considerable effort and attention are needed for schema matching given the heterogeneity of OSM and the representation of authoritative datasets. For the features studied, it can be noted that change over time is sometimes due to disagreements between contributors, but in most cases the change improves the quality of the data. Numéro de notice : A2017-188 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3390/ijgi6030080 Date de publication en ligne : 14/03/2017 En ligne : http://dx.doi.org/10.3390/ijgi6030080 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84796
in ISPRS International journal of geo-information > vol 6 n° 3 (March 2017) . - pp 1 - 29[article]Completeness of citizen science biodiversity data from a volunteered geographic information perspective / Clemens Jacobs in Geo-spatial Information Science, vol 20 n° 1 (March 2017)
[article]
Titre : Completeness of citizen science biodiversity data from a volunteered geographic information perspective Type de document : Article/Communication Auteurs : Clemens Jacobs, Auteur ; Alexander Zipf, Auteur Année de publication : 2017 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] Aves
[Termes IGN] données écologiques
[Termes IGN] données localisées des bénévoles
[Termes IGN] Etats-Unis
[Termes IGN] exhaustivité des données
[Termes IGN] OpenStreetMap
[Termes IGN] parc naturel national
[Termes IGN] qualité des donnéesRésumé : (auteur) Observations of living organisms by citizen scientists that are reported to online portals are a valuable source of information. They are also a special kind of volunteered geographic information (VGI). VGI data have issues of completeness, which arise from biases caused by the opportunistic nature of the data collection process. We examined the completeness of bird species represented in citizen science observation data from eBird and iNaturalist in US National Parks (NPs). We used approaches for completeness estimation which were developed for data from OpenStreetMap, a crowdsourced map of the world. First, we used an extrinsic approach, comparing species lists from citizen science data with National Park Service lists. Second, we examined two intrinsic approaches using total observation numbers in NPs and the development of the number of new species being added to the data-set over time. Results from the extrinsic approach provided appropriate completeness estimations to evaluate the intrinsic approaches. We found that total observation numbers are a good estimator of species completeness of citizen science data from US NPs. There is also a close relationship between species completeness and the ratio of new species added to observation data vs. observation numbers in a given year. Numéro de notice : A2017-186 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/10095020.2017.1288424 En ligne : http://dx.doi.org/10.1080/10095020.2017.1288424 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84771
in Geo-spatial Information Science > vol 20 n° 1 (March 2017)[article]Vol 44 n° 2 - March 2017 - Crowdsourced Mapping (Bulletin de Cartography and Geographic Information Science)
[n° ou bulletin]
est un bulletin de Cartography and Geographic Information Science / Cartography and geographic information society (1999 -)
Titre : Vol 44 n° 2 - March 2017 - Crowdsourced Mapping Type de document : Périodique Année de publication : 2017 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] cartographie collaborative
[Termes IGN] données localisées des bénévoles
[Termes IGN] qualité des données
[Termes IGN] traitement automatique de donnéesNuméro de notice : 032-201702 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Numéro de périodique En ligne : http://www.tandfonline.com/toc/tcag20/44/2?nav=tocList Format de la ressource électronique : URL sommaire Permalink : https://documentation.ensg.eu/index.php?lvl=bulletin_display&id=28065 [n° ou bulletin]Contient
- Engaging indigenous people as geo-crowdsourcing sensors for ecotourism mapping via mobile data collection: a case study of the Royal Belum State Park / Nurul Hawani Idris in Cartography and Geographic Information Science, Vol 44 n° 2 (March 2017)
- Models of direct editing of government spatial data: challenges and constraints to the acceptance of contributed data / Peter A. Johnson in Cartography and Geographic Information Science, Vol 44 n° 2 (March 2017)
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Code-barres Cote Support Localisation Section Disponibilité 032-2017021 RAB Revue Centre de documentation En réserve L003 Disponible Engaging indigenous people as geo-crowdsourcing sensors for ecotourism mapping via mobile data collection: a case study of the Royal Belum State Park / Nurul Hawani Idris in Cartography and Geographic Information Science, Vol 44 n° 2 (March 2017)
[article]
Titre : Engaging indigenous people as geo-crowdsourcing sensors for ecotourism mapping via mobile data collection: a case study of the Royal Belum State Park Type de document : Article/Communication Auteurs : Nurul Hawani Idris, Auteur ; Mohamad Jahidi Osman, Auteur ; Kasturi Devi Kanniah, Auteur ; et al., Auteur Année de publication : 2017 Article en page(s) : pp 113 - 127 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] densification
[Termes IGN] données GPS
[Termes IGN] données localisées des bénévoles
[Termes IGN] Malaisie
[Termes IGN] parc naturel
[Termes IGN] population
[Termes IGN] téléphone intelligent
[Termes IGN] tourismeRésumé : (auteur) Web 2.0 and the proliferation of built-in Global Positioning System (GPS) on smartphones have influenced the increase of geo-crowdsourcing activities in a number of different contexts. The aim of this paper is to evaluate the performance of indigenous people’s use of mobile collection applications that are embedded in a smartphone to facilitate ecotourism asset mapping. In order to achieve this, field usability testing was conducted where structured observational method was used to assess the performance. The findings indicate majority of them can complete the data entry tasks using mobile data collection. The performance of data entries using radio button, icons, camera and audio methods were identified as better than free text and drop-down list methods. There was a correlation between the level of education with the ability of using radio button, drop-down list and image icon as data entry methods. The paper also discusses the extent of local knowledge relating to ecotourism within the community. The findings should be useful in the understanding of the design of mobile geo-crowdsourcing tools for use within other contexts that focus on data collection by semiliterate and indigenous groups. Numéro de notice : A2017-102 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2016.1195285 En ligne : http://dx.doi.org/10.1080/15230406.2016.1195285 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84482
in Cartography and Geographic Information Science > Vol 44 n° 2 (March 2017) . - pp 113 - 127[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 032-2017021 RAB Revue Centre de documentation En réserve L003 Disponible Models of direct editing of government spatial data: challenges and constraints to the acceptance of contributed data / Peter A. Johnson in Cartography and Geographic Information Science, Vol 44 n° 2 (March 2017)PermalinkA participatory framework for developing public participation GIS solutions to improve resource management systems / Nagesh Kolagani in International journal of geographical information science IJGIS, vol 31 n° 3-4 (March-April 2017)PermalinkThe importance of context : assessing the benefits and limitations of participatory mapping for empowering indigenous communities in the comarca Ngäbe-Buglé, Panama / Derek A. Smith in Cartographica, vol 52 n° 1 (Spring 2017)PermalinkThe rise of the mobile cartographer / Jordi Estrada in GEO: Geoconnexion international, vol 16 n° 3 (March 2017)PermalinkA review of sampling effects and response bias in internet participatory mapping (PPGIS/PGIS/VGI) / Greg Brown in Transactions in GIS, vol 21 n° 1 (February 2017)PermalinkThe scale of VGI in map production: A perspective on European national mapping agencies / Ana-Maria Olteanu-Raimond in Transactions in GIS, vol 21 n° 1 (February 2017)PermalinkPermalinkBuilding social networks in volunteered geographic information communities: What contributor behaviours reveal about crowdsourced data quality / Quy Thy Truong (2017)PermalinkCitizen empowered mapping, ch. 1. Level of details harmonization operations in OpenStreetMap based large scale maps / Guillaume Touya (2017)PermalinkPermalinkEmbedding user-generated content into oblique airborne photogrammetry-based 3D city model / Jianming Liang in International journal of geographical information science IJGIS, vol 31 n° 1-2 (January - February 2017)PermalinkPermalinkMapping and the citizen sensor, ch 10. The relevance of protocols for VGI collection / Marco Minghini (2017)PermalinkMapping and the citizen sensor, ch 13. VGI in national mapping agencies: experiences and recommendations / Ana-Maria Olteanu-Raimond (2017)PermalinkMapping and the citizen sensor, ch 4. Production of topographic maps with VGI: quality management and automation / Guillaume Touya (2017)PermalinkMapping and the citizen sensor, ch 6. Considerations of privacy, ethics and legal issues in volunteered geographic information / Peter Mooney (2017)PermalinkPotentiel des données géolocalisées issues de la foule pour les questions de mobilité et tourisme : quelques exemples issus de la littérature / Laurence Jolivet (2017)PermalinkA review of volunteered geographic information quality assessment methods / Hansi Senaratne in International journal of geographical information science IJGIS, vol 31 n° 1-2 (January - February 2017)PermalinkSimilarity matching for integrating spatial information extracted from place descriptions / Junchul Kim in International journal of geographical information science IJGIS, vol 31 n° 1-2 (January - February 2017)PermalinkTowards a unified narrative-centric spatial clustering model of social media volunteered geographic information / Nick Bennett (2017)Permalink