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Evaluation and monitoring of service quality: discussing ways to meet INSPIRE requirements / Christian Selp in Transactions in GIS, vol 20 n° 2 (April 2016)  

Public [article]  inTransactions in GIS > vol 20 n° 2 (April 2016) . - pp 163 – 181 Titre : Evaluation and monitoring of service quality: discussing ways to meet INSPIRE requirements Type de document : Article/Communication Auteurs : Christian Selp, Auteur ; Ralf Bill, Auteur Année de publication : 2016 Article en page(s) : pp 163 – 181 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] Allemagne [Termes IGN] architecture orientée services [Termes IGN] infrastructure européenne de données localisées [Termes IGN] INSPIRE Résumé : (auteur) Service oriented architectures (SOA) are widely used nowadays. As the name implies such architectures rely on services. Germany developed a marine-specific service oriented data infrastructure (MDI-DE – Marine Dateninfrastruktur Deutschland) from 2010 to 2013. The services in MDI-DE can contribute to fulfilling reporting commitments for various European and national legislation. The services of MDI-DE (just like other services affected, for instance, by INSPIRE) have to meet specific requirements regarding performance, availability and conformity (quality of service, QoS). Although SOA is an important field in scientific research there are very few publications and studies available on QoS, especially regarding INSPIRE requirements. The services of MDI-DE were analyzed using various existing tools. Their usefulness to reflect where either the aspect's performance, availability or conformity needs improvement was partly verified. Due to varying results and the neglect of some services for various reasons it can be stated that the more tools are used, the more conclusive the outcome. Furthermore, service quality was not coherent when measured with different tools. This means that measuring QoS in terms of INSPIRE will be very difficult to do in the future and there is the danger that people will choose the tools with which their services perform best. Numéro de notice : A2016-448 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12145 En ligne : http://dx.doi.org/10.1111/tgis.12145 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81357 [article]

Student learning in an introductory GIS course: Using a project-based approach / Forrest J. Bowlick in Transactions in GIS, vol 20 n° 2 (April 2016)  

Public [article]  inTransactions in GIS > vol 20 n° 2 (April 2016) . - pp 182 – 202 Titre : Student learning in an introductory GIS course: Using a project-based approach Type de document : Article/Communication Auteurs : Forrest J. Bowlick, Auteur ; Sarah W. Bednarz, Auteur ; Daniel W. Goldberg, Auteur Année de publication : 2016 Article en page(s) : pp 182 – 202 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] formation initiale [Termes IGN] pédagogie Résumé : (auteur) Introductory courses in Geographic Information Science (GIS) expose students to the concepts and practices necessary for future academic and professional use of GIS tools. Traditional GIS courses balance lectures in the theories of GIS with pre-built and pre-packaged lab activities to learn the practices of GIS. This article presents a case study of an experimental introductory course in which students conducted novel, independent project-based group research under the supervision of graduate or advanced undergraduate students enrolled in the course, culminating in a class presentation and publication quality paper. Surveys and interviews indicated that students reacted more positively to project-based group research than to traditional activities. Students felt the projects better prepared them for ‘real world’ applications of GIS, and recommend project-based group research in other GIS coursework. Additionally, our findings indicate that students appreciate interactions with peers of varying skill levels and experiences, as these broaden their capabilities to work with other GIS users. Numéro de notice : A2016-449 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12146 En ligne : http://dx.doi.org/10.1111/tgis.12146 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81358 [article]

Assessing resistance to volunteered geographic information reporting within local government / Muning W. Brandeis in Transactions in GIS, vol 20 n° 2 (April 2016)  

Public [article]  inTransactions in GIS > vol 20 n° 2 (April 2016) . - pp 203 – 220 Titre : Assessing resistance to volunteered geographic information reporting within local government Type de document : Article/Communication Auteurs : Muning W. Brandeis, Auteur ; Timothy Nyerges, Auteur Année de publication : 2016 Article en page(s) : pp 203 – 220 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] aide à la décision [Termes IGN] analyse comparative [Termes IGN] cadre conceptuel [Termes IGN] données localisées des bénévoles [Termes IGN] organisme cartographique national [Termes IGN] participation du public [Termes IGN] qualité des données Résumé : (auteur) Using volunteered geographic information (VGI) as a cost-saving environmental monitoring and public participation mechanism has been thought to be a proof of concept to assist environmental decision-making with insufficient managerial resources. However, research literature also often found institutional resistance when implementing VGI as part of the decision-making process. This research develops a conceptual framework as the foundation to conduct a cross-case comparison for four empirical cases in recreation and invasive species monitoring, but general enough for other such case comparisons. The VGI Reporting Assessment Framework (VGI-RAF) adopted aspects of the Decision Situation Assessment (DSA) framework as the foundation to address institutional flexibility, stakeholder dynamics, and technical considerations. Using a comparison can accumulate deep observations from cases and increase validity of insights through comparing processes. Results show that eight aspects of the VGI-RAF reveal the suitability of embedding voluntary information within existing institutional decision-making processes. VGI-RAF depicts considerations for: (1) existing participation arrangements, (2) institutional arrangements, (3) managers’ needs and stakeholder expectation, and (4) interaction mechanism and technical needs. The cross-comparison results indicate that a public participation mechanism should be accompanied by VGI development to increase effectiveness. Institutional arrangements should match local government's information needs with participants’ expectations. Knowledge gaps between institutional information needs and volunteer knowledge should be filled through technology enhancements. For ease of implementation and to promote long-term success, we recommend that volunteered information be connected with existing communication channels to minimize changes to existing information systems. Numéro de notice : A2016-450 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12168 En ligne : http://dx.doi.org/10.1111/tgis.12168 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81359 [article]

Geometric algebra model for geometry-oriented topological relation computation / Zhaoyuan Yu in Transactions in GIS, vol 20 n° 2 (April 2016)  

Public [article]  inTransactions in GIS > vol 20 n° 2 (April 2016) . - pp 259 – 279 Titre : Geometric algebra model for geometry-oriented topological relation computation Type de document : Article/Communication Auteurs : Zhaoyuan Yu, Auteur ; Wen Luo, Auteur ; Lingwang Yuan, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 259 – 279 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] espace topologique [Termes IGN] modèle géométrique [Termes IGN] relation topologique [Termes IGN] traitement de données localisées Résumé : (auteur) Classical topological relation expressions and computations are primarily based on abstract algebra. In this article, the representation and computation of geometry-oriented topological relations (GOTR) are developed. GOTR is the integration of geometry and topology. The geometries are represented by blades, which contain both algebraic expressions and construction structures of the geometries in the conformal geometric algebra space. With the meet, inner, and outer products, two topology operators, the MeetOp and BoundOp operators, are developed to reveal the disjoint/intersection and inside/on-surface/outside relations, respectively. A theoretical framework is then formulated to compute the topological relations between any pair of elementary geometries using the two operators. A multidimensional, unified and geometry-oriented algorithm is developed to compute topological relations between geometries. With this framework, the internal results of the topological relations computation are geometries. The topological relations can be illustrated with clear geometric meanings; at the same time, it can also be modified and updated parametrically. Case studies evaluating the topological relations between 3D objects are performed. The result suggests that our model can express and compute the topological relations between objects in a symbolic and geometry-oriented way. The method can also support topological relation series computation between objects with location or shape changes. Numéro de notice : A2016-451 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12154 En ligne : http://dx.doi.org/10.1111/tgis.12154 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81362 [article]

Multidimensional Similarity Measuring for Semantic Trajectories / Andre Salvaro Furtado in Transactions in GIS, vol 20 n° 2 (April 2016)  

Public [article]  inTransactions in GIS > vol 20 n° 2 (April 2016) . - pp 280 – 298 Titre : Multidimensional Similarity Measuring for Semantic Trajectories Type de document : Article/Communication Auteurs : Andre Salvaro Furtado, Auteur ; Despina Kopanaki, Auteur ; Luis Otavio Alvares, Auteur ; Vania Bogorny, Auteur Année de publication : 2016 Article en page(s) : pp 280 – 298 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] information sémantique [Termes IGN] itinéraire piétionnier [Termes IGN] mesure de similitude multidimensionnelle [Termes IGN] similitude sémantique [Termes IGN] trajet (mobilité) Résumé : (auteur) Most existing approaches aiming at measuring trajectory similarity are focused on two-dimensional sequences of points, called raw trajectories. However, recent proposals have used background geographic information and social media data to enrich these trajectories with a semantic dimension, giving rise to the concept of semantic trajectories. Only a few works have proposed similarity measures for semantic trajectories or multidimensional sequences, having limitations such as predefined weight of the dimensions, sensitivity to noise, tolerance for gaps with different sizes, and the prevalence of the worst dimension similarity. In this article we propose MSM, a novel similarity measure for multidimensional sequences that overcomes the aforementioned limitations by considering and weighting the similarity in all dimensions. MSM is evaluated through an extensive experimental study that, based on a seed trajectory, creates sets of semantic trajectories with controlled transformations to introduce different kinds and levels of dissimilarity. For each set, we compute the similarity between the seed and the transformed trajectories, using different measures. The results showed that MSM was more robust and efficient than related approaches in the domain of semantic trajectories. Numéro de notice : A2016-452 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12156 En ligne : http://dx.doi.org/10.1111/tgis.12156 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81363 [article]