Centre de documentation
scientifique

Dépouillements

Thinking about space-time connections : spatiotemporal scheduling of individual activities / Kathleen Stewart in Transactions in GIS, vol 17 n° 6 (December 2013)  

Public [article]  inTransactions in GIS > vol 17 n° 6 (December 2013) . - pp 791 - 807 Titre : Thinking about space-time connections : spatiotemporal scheduling of individual activities Type de document : Article/Communication Auteurs : Kathleen Stewart, Auteur ; Junchuan Fan, Auteur ; Emily White, Auteur Année de publication : 2013 Article en page(s) : pp 791 - 807 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] accessibilité [Termes IGN] analyse spatio-temporelle [Termes IGN] généralisation [Termes IGN] géovisualisation [Termes IGN] mise à jour [Termes IGN] mobilité urbaine [Termes IGN] modèle conceptuel de données spatio-temporelles [Termes IGN] ontologie [Termes IGN] personnalisation [Termes IGN] requête spatiotemporelle [Termes IGN] SWRL Résumé : (Auteur) This article presents a spatiotemporal model for scheduling applications that is driven by the events and activities individuals plan and manage every day. The framework is presented using an ontological approach where ontologies at different levels of generalization, e.g. domain, application, and task ontologies, are linked together through participation and inheritance relationships. S_Events are entered into a schedule as a new S_Entry, or modifications can be made to existing entries including reschedule, postpone, change location, and delete as schedules vary over time. These schedule updates are formalized through changes to planned start and end times and the planned locations of S_Entries are expressed using SWRL, a semantic web rule language. SWRL is also used for reasoning about schedule changes and the space-time conflicts that can occur. The sequence of entries in a schedule gives rise to S_trajectories representing the locations that individuals plan to visit in order to carry out their schedule, adding an additional spatial element to the framework. A prototype Geoscheduler application maps S_Entries against a timeline, offering a spatiotemporal visualization of scheduled activities showing the evolution of a schedule over space-time and affecting spatiotemporal accessibility for individuals. Numéro de notice : A2013-671 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12028 Date de publication en ligne : 17/05/2013 En ligne : https://doi.org/10.1111/tgis.12028 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32807 [article]

Assessing the accuracy of Volunteered Geographic Information arising from multiple contributors to an Internet based collaborative project / Giles M. Foody in Transactions in GIS, vol 17 n° 6 (December 2013)  

Public [article]  inTransactions in GIS > vol 17 n° 6 (December 2013) . - pp 847 - 860 Titre : Assessing the accuracy of Volunteered Geographic Information arising from multiple contributors to an Internet based collaborative project Type de document : Article/Communication Auteurs : Giles M. Foody, Auteur ; Steffen Fritz, Auteur ; Linda M. See, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 847 - 860 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] acquisition de données [Termes IGN] cartographie collaborative [Termes IGN] données localisées des bénévoles [Termes IGN] information géographique numérique [Termes IGN] participation du public [Termes IGN] précision des données [Termes IGN] qualité des données Résumé : (Auteur) The recent rise of neogeography and citizen sensing has increased the opportunities for the use of crowdsourcing as a means to acquire data to support geographical research. The value of the resulting volunteered geographic information is, however, often limited by concerns associated with its quality and the degree to which the contributing data sources may be trusted. Here, information on the quality of sources of volunteered geographic information was derived using a latent class analysis. The volunteered information was on land cover interpreted visually from satellite sensor images and the main focus was on the labeling of 299 sites by seven of the 65 volunteers who contributed to an Internet-based collaborative project. Using the information on land cover acquired by the multiple volunteers it was shown that the relative, but not absolute, quality of the data from different volunteers could be characterized accurately. Additionally, class-specific variations in the quality of the information provided by a single volunteer could be characterized by the analysis. The latent class analysis, therefore, was able to provide information on the quality of information provided on an inter- and intra-volunteer basis. Numéro de notice : A2013-672 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12033 Date de publication en ligne : 22/05/2013 En ligne : https://doi.org/10.1111/tgis.12033 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32808 [article]

A parcel shape index for use in land consolidation planning / Demetris Demetriou in Transactions in GIS, vol 17 n° 6 (December 2013)  

Public [article]  inTransactions in GIS > vol 17 n° 6 (December 2013) . - pp 861 - 882 Titre : A parcel shape index for use in land consolidation planning Type de document : Article/Communication Auteurs : Demetris Demetriou, Auteur ; Linda M. See, Auteur ; John Stillwell, Auteur Année de publication : 2013 Article en page(s) : pp 861 - 882 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] aide à la décision [Termes IGN] Chypre [Termes IGN] classification dirigée [Termes IGN] forme caractéristique [Termes IGN] index spatial [Termes IGN] mesure géométrique [Termes IGN] parcelle agricole Résumé : (Auteur) Area shape analysis has been a subject of focus for research in geography and other disciplines for many years. However, existing area shape indices present significant weaknesses for the analysis of land parcels in an agricultural context as they do not measure shape in an appropriate, reliable or explicit manner. This article presents a new parcel shape index (PSI) which integrates six geometric parameters through multi-attribute decision-making, combined with value functions for parameter standardization. The superior performance of the new PSI in relation to three existing indices is demonstrated through a case study area in Cyprus. The methodology can be applied in other contexts aimed at assessing the quality of a particular shape compared to an optimum. Numéro de notice : A2013-673 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01371.x Date de publication en ligne : 05/02/2013 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01371.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32809 [article]

Using pattern-oriented modeling (POM) to cope with uncertainty in multi-scale agent-based models of land change / Nicholas R. Magliocca in Transactions in GIS, vol 17 n° 6 (December 2013)  

Public [article]  inTransactions in GIS > vol 17 n° 6 (December 2013) . - pp 883 - 900 Titre : Using pattern-oriented modeling (POM) to cope with uncertainty in multi-scale agent-based models of land change Type de document : Article/Communication Auteurs : Nicholas R. Magliocca, Auteur ; Erle C. Ellis, Auteur Année de publication : 2013 Article en page(s) : pp 883 - 900 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] aide à la décision [Termes IGN] changement d'occupation du sol [Termes IGN] généralisation de base de données [Termes IGN] incertitude des données [Termes IGN] occupation du sol [Termes IGN] représentation multiple [Termes IGN] système multi-agents [Termes IGN] utilisation du sol Résumé : (Auteur) Local land-use and -cover changes (LUCCs) are the result of both the decisions and actions of individual land-users, and the larger global and regional economic, political, cultural, and environmental contexts in which land-use systems are embedded. However, the dearth of detailed empirical data and knowledge of the influences of global/regional forces on local land-use decisions is a substantial challenge to formulating multi-scale agent-based models (ABMs) of land change. Pattern-oriented modeling (POM) is a means to cope with such process and parameter uncertainty, and to design process-based land change models despite a lack of detailed process knowledge or empirical data. POM was applied to a simplified agent-based model of LUCC to design and test model relationships linking global market influence to agents’ land-use decisions within an example test site. Results demonstrated that evaluating alternative model parameterizations based on their ability to simultaneously reproduce target patterns led to more realistic land-use outcomes. This framework is promising as an agent-based virtual laboratory to test hypotheses of how and under what conditions driving forces of land change differ from a generalized model representation depending on the particular land-use system and location. Numéro de notice : A2013-674 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12012 Date de publication en ligne : 08/01/2013 En ligne : https://doi.org/10.1111/tgis.12012 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32810 [article]

UML-based approach to developing a CityGML application domain extension / Linda Van Den Brink in Transactions in GIS, vol 17 n° 6 (December 2013)  

Public [article]  inTransactions in GIS > vol 17 n° 6 (December 2013) . - pp 920 - 942 Titre : UML-based approach to developing a CityGML application domain extension Type de document : Article/Communication Auteurs : Linda Van Den Brink, Auteur ; Jantien E. Stoter, Auteur ; Sisi Zlatanova, Auteur Année de publication : 2013 Article en page(s) : pp 920 - 942 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] architecture orientée modèle [Termes IGN] CityGML [Termes IGN] diagramme [Termes IGN] données localisées 3D [Termes IGN] GML [Termes IGN] langage de modélisation [Termes IGN] module d'extension [Termes IGN] Pays-Bas [Termes IGN] SIG 3D [Termes IGN] UML Résumé : (Auteur) Recently a national 3D standard was established in the Netherlands as a CityGML Application Domain Extension (called IMGeo). In line with the Dutch practice of modeling geo-information, the ADE is developed using a model driven approach. The classes are designed in UML and automatically mapped to GML schema. The current OGC CityGML specification does not provide rules or guidance on correctly modeling an ADE in UML. This article fills this gap by studying how CityGML can be extended for specific applications starting from the UML diagrams. Six alternatives for modeling ADEs in UML are introduced and compared. The optimal alternative is selected and applied to obtain the national 3D standard. The approach was extensively discussed with international experts, who were members of both SIG3D and other working groups. As a consequence the approach was adopted by the SIG3D, the Special Interest Group 3D which, among other things, work on the 3D standard CityGML in cooperation with OGC. Therefore the approach contains many issues that can be generalized and reused by future domain extensions of CityGML. To further support this, the article formulates a model-driven framework to model CityGML ADEs. Open issues are described in the conclusions. Numéro de notice : A2013-675 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12026 Date de publication en ligne : 22/05/2013 En ligne : https://doi.org/10.1111/tgis.12026 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32811 [article]