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Can free (and Open Source) software and data be used to underpin a self-paced tutorial on spatial databases? / Claire Ellul in Transactions in GIS, vol 16 n° 4 (August 2012)
[article]
Titre : Can free (and Open Source) software and data be used to underpin a self-paced tutorial on spatial databases? Type de document : Article/Communication Auteurs : Claire Ellul, Auteur Année de publication : 2012 Article en page(s) : pp 435 - 454 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Formation
[Termes IGN] apprentissage (cognition)
[Termes IGN] données localisées libres
[Termes IGN] logiciel libre
[Termes IGN] OpenStreetMap
[Termes IGN] pédagogie
[Termes IGN] PostGIS
[Termes IGN] PostgreSQL
[Termes IGN] QGISRésumé : (Auteur) University College London's Department of Civil, Environmental and Geomatic Engineering (CEGE) offers a number of Masters programmes in topics related to Geomatics, including Surveying, Hydrographic Surveying, Remote Sensing and Geographical Information Science. Data management, and in particular the technology and applications of Spatial Databases, forms a key part of the curriculum on these courses. Interest in Spatial Databases is, however, more widespread – especially with the increasing understanding of the relevance of geospatial techniques to fields as diverse as anthropology and architecture. This article describes the development and evaluation of a self-paced hands-on course on Databases and Spatial Databases for CEGE students, presented to students to complement and enhance in-class teaching. The article focuses on both pedagogical elements of self-paced learning and the suitability of Free and Open Source Software and Open Data (PostgreSQL/PostGIS, Quantum GIS, Open Street Map) for the Spatial Databases curriculum. The resulting material was evaluated by a cohort of 25 students in 2010, and their feedback (very positive) and the overall results provide an interesting insight into suitable methods to employ when teaching technical subjects to a cohort having differing background skill levels. Numéro de notice : A2012-361 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01321.x Date de publication en ligne : 02/08/2012 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01321.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31807
in Transactions in GIS > vol 16 n° 4 (August 2012) . - pp 435 - 454[article]Mapping collaboration in open source geospatial ecosystem / Jie Shao in Transactions in GIS, vol 16 n° 4 (August 2012)
[article]
Titre : Mapping collaboration in open source geospatial ecosystem Type de document : Article/Communication Auteurs : Jie Shao, Auteur ; M. Jackson, Auteur ; Jeremy Morley, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 581 - 597 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] analyse diachronique
[Termes IGN] logiciel libre
[Termes IGN] programmation informatique
[Termes IGN] réseau socialRésumé : (Auteur) Over the last decade, there has been a tremendous growth and exploitation of open source geospatial software and technologies. A combination of factors is driving this momentum, including the contributions made by hundreds of developers and the leading role played by the Open Source Geospatial Foundation (OSGeo), aiming primarily to support and promote the collaborative development of open source geospatial technologies and data. This article seeks to map out the social history of collaborative activities within the OSGeo ecosystem. We used the archival logs of developers' contributions, specifically looking for boundary spanning activities where contributions crossed multiple projects. The analysis and visualization of these activities allow us to have a better understanding of the role of boundary spanning in the resourcing of each project, the incubation mechanism advocated by OSGeo, and the significance of the social interrelatedness among projects. The data consisted of the subversion (SVN) commit history made by individual developers in the programming code repository. We applied several network analytical and visualization techniques to explore the data. Our findings indicate that more than one in seven developers spanned multiple projects which potentially had the effects of shaping the projects' directions, and increased knowledge flow and innovation. In addition, the OSGeo's incubation mechanism provided an important encouragement for boundary spanning and increased knowledge sharing. By studying the social history of contributions, further tools can be developed in future to assist tracking of the social history, and make developers mindful of the significance of the interdependence among projects and hence continuously contribute to the health of the OSGeo ecosystem. Numéro de notice : A2012-368 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01305.x Date de publication en ligne : 02/08/2012 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01305.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31814
in Transactions in GIS > vol 16 n° 4 (August 2012) . - pp 581 - 597[article]Supporting accessibility for blind and vision-impaired people with a localized gazetteer and open source geotechnology / M. Rice in Transactions in GIS, vol 16 n° 2 (April 2012)
[article]
Titre : Supporting accessibility for blind and vision-impaired people with a localized gazetteer and open source geotechnology Type de document : Article/Communication Auteurs : M. Rice, Auteur ; A. Aburizaiza, Auteur ; R. Daniel Jacobson, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 177 - 190 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] accessibilité
[Termes IGN] données localisées des bénévoles
[Termes IGN] intégration de données
[Termes IGN] logiciel libre
[Termes IGN] navigation pédestre
[Termes IGN] personne malvoyante
[Termes IGN] PostGIS
[Termes IGN] PostgreSQL
[Termes IGN] répertoire toponymiqueRésumé : (Auteur) Disabled people, especially the blind and vision-impaired, are challenged by many transitory hazards in urban environments such as construction barricades, temporary fencing across walkways, and obstacles along curbs. These hazards present a problem for navigation, because they typically appear in an unplanned manner and are seldom included in databases used for accessibility mapping. Tactile maps are a traditional tool used by blind and vision-impaired people for navigation through urban environments, but such maps are not automatically updated with transitory hazards. As an alternative approach to static content on tactile maps, we use volunteered geographic information (VGI) and an Open Source system to provide updates of local infrastructure. These VGI updates, contributed via voice, text message, and e-mail, use geographic descriptions containing place names to describe changes to the local environment. After they have been contributed and stored in a database, we georeference VGI updates with a detailed gazetteer of local place names including buildings, administrative offices, landmarks, roadways, and dormitories. We publish maps and alerts showing transitory hazards, including location-based alerts delivered to mobile devices. Our system is built with several technologies including PHP, JavaScript, AJAX, Google Maps API, PostgreSQL, an Open Source database, and PostGIS, the PostgreSQL's spatial extension. This article provides insight into the integration of user-contributed geospatial information into a comprehensive system for use by the blind and vision-impaired, focusing on currently developed methods for geoparsing and georeferencing using a gazetteer. Numéro de notice : A2012-159 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01318.x Date de publication en ligne : 13/04/2012 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01318.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31606
in Transactions in GIS > vol 16 n° 2 (April 2012) . - pp 177 - 190[article]The WISERD geoportal: A tool for the discovery, analysis and visualization of socio-economic (Meta-) data for Wales / R. Fry in Transactions in GIS, vol 16 n° 2 (April 2012)
[article]
Titre : The WISERD geoportal: A tool for the discovery, analysis and visualization of socio-economic (Meta-) data for Wales Type de document : Article/Communication Auteurs : R. Fry, Auteur ; R. Berry, Auteur ; G. Higgs, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 105 - 124 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] données socio-économiques
[Termes IGN] géoportail
[Termes IGN] GeoServer
[Termes IGN] logiciel libre
[Termes IGN] métadonnées
[Termes IGN] OpenLayers
[Termes IGN] Pays de Galles
[Termes IGN] PostGIS
[Termes IGN] PostgreSQLRésumé : (Auteur) The Wales Institute of Socio-Economic Research, Data and Methods (WISERD) is an interdisciplinary, cross-institutional academic research group based in Wales, UK. One of the key objectives of WISERD is to develop a spatial framework that enhances a researcher's ability to discover socio-economic research data relating to Wales with the aim of encouraging collaborative research and re-use of existing data. This article describes the development of an online geoportal designed to meet this objective. Using free and open-source software (FOSS) components and services, a range of software tools has been developed to capture standards-compliant metadata for a variety of data sources. The geoportal is unique in that, in our review of over 120 geoportals worldwide, we have not previously encountered a geoportal dedicated to supporting quantitative and qualitative social science academic and policy research. A particularly innovative aspect of the geoportal has involved the building of a rich meta-database of government surveys, geo-referenced semantically-tagged qualitative data (generated from primary research), ‘grey’ data (e.g. from transcripts, journal publications, books, PhD theses) and Government administrative data. This article describes the challenges faced during the development of the WISERD Geoportal which can be accessed via http://www.wiserd.ac.uk/geoportal/. Numéro de notice : A2012-155 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01308.x Date de publication en ligne : 13/04/2012 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01308.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31602
in Transactions in GIS > vol 16 n° 2 (April 2012) . - pp 105 - 124[article]Web geoservices and ancient cadastral maps: The web C.A.R.T.E. project / M. Brovelli in Transactions in GIS, vol 16 n° 2 (April 2012)
[article]
Titre : Web geoservices and ancient cadastral maps: The web C.A.R.T.E. project Type de document : Article/Communication Auteurs : M. Brovelli, Auteur ; Marco Minghini, Auteur ; G. Giori, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 125 - 142 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] carte ancienne
[Termes IGN] données maillées
[Termes IGN] géoréférencement indirect
[Termes IGN] Italie
[Termes IGN] logiciel libre
[Termes IGN] métadonnées
[Termes IGN] numérisation de carte
[Termes IGN] service web géographique
[Termes IGN] WebSIGRésumé : (Auteur) In the State Archive of Como, Northern Italy, about 15,000 historical maps belonging to different national cadastral productions are preserved. The Web C.A.R.T.E. project was started to enhance the accessibility of this valuable cartographic heritage using FOSS (Free and Open Source Software) technologies. The system, which implements specific web geoservices for cataloguing and visualization, should assist the State Archive of Como in the digital management of its cartographic resources and related information. After the high-resolution digitization step, maps undergo a georeferencing operation. A special statistical procedure for choosing the best mathematical model was developed, verifying also strengths and weaknesses of georeferencing with a common free and Open Source GIS. Next, metadata consistent with current Italian standards were added to the georeferenced maps using an ad hoc localized version of GeoNetwork Opensource (recently provided as the official Italian version of the software). A dedicated WebGIS system was built for publishing the georeferenced cadastral maps. This system is capable of navigating large raster data in a georeferenced framework and easily retrieving their metadata. The WebGIS system for the State Archive of Como is an important contribution for the preservation of the original historical paper maps and also a great modernization and simplification of the end user's access to this archive. Numéro de notice : A2012-156 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01311.x Date de publication en ligne : 13/04/2012 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01311.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31603
in Transactions in GIS > vol 16 n° 2 (April 2012) . - pp 125 - 142[article]Who's watching your food? A flexible framework for public health monitoring / Stacy Supak in Transactions in GIS, vol 16 n° 2 (April 2012)PermalinkPermalinkGeOxygene: Built on top of the expertise of the French NMA to host and share advanced GI Science research results / Bénédicte Bucher (2012)PermalinkPermalinkMapCache : une solution de tuilage WMS open source / Anonyme in Géomatique expert, n° 84 (01/01/2012)PermalinkAutomated image-based procedures for accurate artifacts 3D modeling and orthoimage generation / Marc Pierrot-Deseilligny in Geoinformatics FCE CTU, vol 6 (2011)PermalinkDevelopment of an open-source toolbox for the analysis and visualization of remotely sensed time series / C. Block in Cartographica, vol 46 n° 4 (December 2011)PermalinkPostGIS in action / Regina O. Obe in Geoinformatics, vol 14 n° 8 (01/12/2011)PermalinkQGIS a besoin qu'on l'aime / Françoise de Blomac in SIG la lettre, n° 132 (décembre 2011)PermalinkConférence QGIS / Anonyme in Géomatique expert, n° 83 (01/11/2011)Permalink