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Ranking spaces for predicting human movement in an urban environment / Bin Jiang in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 823 - 837 Titre : Ranking spaces for predicting human movement in an urban environment Type de document : Article/Communication Auteurs : Bin Jiang, Auteur Année de publication : 2009 Article en page(s) : pp 823 - 837 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] analyse spatiale [Termes IGN] classification [Termes IGN] milieu urbain [Termes IGN] mobilité urbaine [Termes IGN] relation topologique [Termes IGN] structure syntaxique Résumé : (Auteur) A city can be topologically represented as a connectivity graph, consisting of nodes representing individual spaces and links if the corresponding spaces are intersected. It turns out in the space syntax literature that some defined topological metrics can capture human movement rates in individual spaces. In other words, the topological metrics are significantly correlated to human movement rates, and individual spaces can be ranked by the metrics for predicting human movement. However, this correlation has never been well justified. In this paper, we study the same issue by applying the weighted PageRank algorithm to the connectivity graph or space-space topology for ranking the individual spaces, and find surprisingly that: (1) the PageRank scores are better correlated to human movement rates than the space syntax metrics, and (2) the underlying space-space topology demonstrates small world and scale free properties. The findings provide a novel justification as to why space syntax, or topological analysis in general, can be used to predict human movement. We further conjecture that this kind of analysis is no more than predicting a drunkard's walking on a small world and scale free network. Copyright Taylor & Francis Numéro de notice : A2009-337 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802022822 En ligne : https://doi.org/10.1080/13658810802022822 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29967 [article]

Exemplaires(2)

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Ant intelligence for solving optimal path-covering problems with multi-objectives / X. Li in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 839 - 857 Titre : Ant intelligence for solving optimal path-covering problems with multi-objectives Type de document : Article/Communication Auteurs : X. Li, Auteur ; Jianhua He, Auteur ; X. Liu, Auteur Année de publication : 2009 Article en page(s) : pp 839 - 857 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] chemin le plus court, algorithme du [Termes IGN] données maillées [Termes IGN] optimisation par colonie de fourmis Résumé : (Auteur) Conventional methods have difficulties in forming optimal paths when raster data are used and multi-objectives are involved. This paper presents a new method of using ant colony optimization (ACO) for solving optimal path-covering problems on unstructured raster surfaces. The novelty of this proposed ACO includes the incorporation of a couple of distinct features which are not present in classical ACO. A new component, the direction function, is used to represent the 'visibility' in the path exploration. This function is to guide an ant walking toward the final destination more efficiently. Moreover, a utility function is proposed to reflect the multi-objectives in planning applications. Experiments have shown that classical ACO cannot be used to solve this type of path optimization problems. The proposed ACO model can generate near optimal solutions by using hypothetical data in which the optimal solutions are known. This model can also find the near optimal solutions for the real data set with a good convergence rate. It can yield much higher utility values compared with other common conventional models. Copyright Taylor & Francis Numéro de notice : A2009-338 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802570309 En ligne : https://doi.org/10.1080/13658810802570309 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29968 [article]

Exemplaires(2)

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Assessing housing growth when census boundaries change / A. Syphard in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 859 - 876 Titre : Assessing housing growth when census boundaries change Type de document : Article/Communication Auteurs : A. Syphard, Auteur ; S. Stewart, Auteur ; J. Mckeefry, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 859 - 876 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] analyse diachronique [Termes IGN] base de données d'occupation du sol [Termes IGN] bâtiment [Termes IGN] croissance urbaine [Termes IGN] densité de population [Termes IGN] figuration de la densité [Termes IGN] habitat (urbanisme) [Termes IGN] limite administrative [Termes IGN] occupation du sol [Termes IGN] Oregon (Etats-Unis) [Termes IGN] recensement démographique Résumé : (Auteur) The US Census provides the primary source of spatially explicit social data, but changing block boundaries complicate analyses of housing growth over time. We compared procedures for reconciling housing density data between 1990 and 2000 census block boundaries in order to assess the sensitivity of analytical methods to estimates of housing growth in Oregon. Estimates of housing growth varied substantially and were sensitive to the method of interpolation. With no processing and areal-weighted interpolation, more than 35% of the landscape changed; 75-80% of this change was due to decline in housing density. This decline was implausible, however, because housing structures generally persist over time. Based on aggregated boundaries, 11% of the landscape changed, but only 4% experienced a decline in housing density. Nevertheless, the housing density change map was almost twice as coarse spatially as the 2000 housing density data. We also applied a dasymetric approach to redistribute 1990 housing data into 2000 census boundaries under the assumption that the distribution of housing in 2000 reflected the same distribution as in 1990. The dasymetric approach resulted in conservative change estimates at a fine resolution. All methods involved some type of trade-off (e.g. analytical difficulty, data resolution, magnitude or bias in direction of change). However, our dasymetric procedure is a novel approach for assessing housing growth over changing census boundaries that may be particularly useful because it accounts for the uniquely persistent nature of housing over time. Copyright Taylor & Francis Numéro de notice : A2009-339 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802359877 En ligne : https://doi.org/10.1080/13658810802359877 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29969 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-09051	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-09052	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Qualified topological relations between spatial objects with possible vague shape / L. Bejaoui in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 877 - 921 Titre : Qualified topological relations between spatial objects with possible vague shape Type de document : Article/Communication Auteurs : L. Bejaoui, Auteur ; F. Pinet, Auteur ; S. Schneider, Auteur ; Yvan Bédard, Auteur Année de publication : 2009 Article en page(s) : pp 877 - 921 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] contrainte d'intégrité [Termes IGN] imprécision des données [Termes IGN] objet géographique [Termes IGN] relation topologique [Termes IGN] requête spatiale Résumé : (Auteur) Broad boundary is generally used to replace one-dimensional boundary for spatial objects with vague shape. For regions with broad boundary, this concept should respect both connectedness and closeness conditions. Therefore, some real configurations, like regions with partially broad boundary (e.g. lake with rocky and swamp banks), are considered invalid. This paper aims to represent different levels of shape vagueness and consider them during the identification of topological relations. Then, an object with vague shape is composed by two crisp components: a minimal extent and a maximal extent. Topological relations are identified by applying the 9-Intersection model for the subrelations between the minimal and maximal extents of objects involved. Four subrelations are then represented through a 4-Intersection matrix used to classify the topological relations. For regions with broad boundary, 242 relations are distinguished and classified into 40 clusters. This approach supports an adverbial expression of integrity constraints and spatial queries. Copyright Taylor & Francis Numéro de notice : A2009-340 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810802022814 En ligne : https://doi.org/10.1080/13658810802022814 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29970 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-09051	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-09052	RAB	Revue	Centre de documentation	En réserve L003	Disponible

A GeoAgent-based framework for knowledge-oriented representation: embracing social rules in GIS / C. Yu in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 923 - 960 Titre : A GeoAgent-based framework for knowledge-oriented representation: embracing social rules in GIS Type de document : Article/Communication Auteurs : C. Yu, Auteur ; Donna J. Peuquet, Auteur Année de publication : 2009 Article en page(s) : pp 923 - 960 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] agent (intelligence artificielle) [Termes IGN] base de connaissances [Termes IGN] base de règles [Termes IGN] cadre conceptuel [Termes IGN] interaction homme-milieu [Termes IGN] modèle conceptuel de données localisées [Termes IGN] Pennsylvanie (Etats-Unis) [Termes IGN] prototype [Termes IGN] représentation des connaissances [Termes IGN] système à base de connaissances [Termes IGN] système multi-agents Résumé : (Auteur) While current Geographic Information Systems (GISs) can represent observational spatial data well, they have limited capabilities in representing some non-observational social elements and goal-driven behaviours that can be important factors in a wide range of geographic issues. Such social components may include laws, regulations, polices, plans, culture, and customs, as well as their relations and interactions with the geographic environment at different scales. Getting beyond traditional data-centred approaches, this research presents a knowledge-oriented strategy in order to address these issues within a GIS context. We incorporate two major conceptual elements. First, extending from conventional agent notions and their geographic applications, geographic agents (GeoAgents) are considered as a basic representation component to specifically address social rules and goal-driven behaviours that impact the Earth and environmental systems. Second, in order to incorporate GeoAgents with current space-time representation, a new conceptual representation framework, called 'fields, objects, time, GeoAgents, and relations' (FOTAR), is introduced to address the cross-scale processes of both social and natural interactions. A Java-based prototype, GeoAgent-based Knowledge System (GeoAgentKS), is described to implement this framework by integrating agent technologies with multiple data and knowledge representation techniques, such as expert systems, concept maps, mathematical models, and geospatial databases. The application of this prototype in a case study is also presented, investigating scale-dependent human-environment interactions under different emergency situations for community water systems in Central Pennsylvania, USA. In this case study, a systematic set of methodologies of knowledge acquisition, representation, and confirmation for constructing GeoAgents' knowledge bases by using expert systems were explored to formalize high-level knowledge and social behaviours in the FOTAR-based representations. The results show that the proposed conceptual representation framework is achievable at both implementation and application levels, and the prototype tool is demonstrated to be valuable in facilitating knowledge sharing, policymaking, municipal management, and decision-making, especially for real-world emergency management. Copyright Taylor & Francis Numéro de notice : A2009-341 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810701602104 En ligne : https://doi.org/10.1080/13658810701602104 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29971 [article]

Exemplaires(2)

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079-09052	RAB	Revue	Centre de documentation	En réserve L003	Disponible

A data-mining approach for assessing consistency between multiple representations in spatial databases / David Sheeren in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 961 - 992 Titre : A data-mining approach for assessing consistency between multiple representations in spatial databases Type de document : Article/Communication Auteurs : David Sheeren , Auteur ; Jean Daniel Zucker, Auteur ; Sébastien Mustière , Auteur Année de publication : 2009 Article en page(s) : pp 961 - 992 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] appariement de données localisées [Termes IGN] apprentissage dirigé [Termes IGN] base de données localisées [Termes IGN] cohérence des données [Termes IGN] découverte de connaissances [Termes IGN] données vectorielles [Termes IGN] exploration de données géographiques [Termes IGN] métadonnées [Termes IGN] représentation multiple [Termes IGN] système à base de connaissances Résumé : (Auteur) When different spatial databases are combined, an important issue is the identification of inconsistencies between data. Quite often, representations of the same geographical entities in databases are different and reflect different points of view. In order to fully take advantage of these differences when object instances are associated, a key issue is to determine whether the differences are normal, i.e. explained by the database specifications, or if they are due to erroneous or outdated data in one database. In this paper, we propose a knowledge-based approach to partially automate the consistency assessment between multiple representations of data. The inconsistency detection is viewed as a knowledge-acquisition problem, the source of knowledge being the data. The consistency assessment is carried out by applying a proposed method called MECO. This method is itself parameterized by some domain knowledge obtained from a second method called MACO. MACO supports two approaches (direct or indirect) to perform the knowledge acquisition using data-mining techniques. In particular, a supervised learning approach is defined to automate the knowledge acquisition so as to drastically reduce the human-domain expert's work. Thanks to this approach, the knowledge-acquisition process is sped up and less expert-dependent. Training examples are obtained automatically upon completion of the spatial data matching. Knowledge extraction from data following this bottom-up approach is particularly useful, since the database specifications are generally complex, difficult to analyse, and manually encoded. Such a data-driven process also sheds some light on the gap between textual specifications and those actually used to produce the data. The methodology is illustrated and experimentally validated by comparing geometrical representations and attribute values of different vector spatial databases. The advantages and limits of such partially automatic approaches are discussed, and some future works are suggested. Copyright Taylor & Francis Numéro de notice : A2009-342 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810701791949 En ligne : http://doi.org/10.1080/13658810701791949 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29972 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
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079-09052	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Creating and delivering augmented scenes / J. Mower in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 993 - 1011 Titre : Creating and delivering augmented scenes Type de document : Article/Communication Auteurs : J. Mower, Auteur Année de publication : 2009 Article en page(s) : pp 993 - 1011 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] architecture client-serveur [Termes IGN] géomatique web [Termes IGN] modèle numérique de terrain [Termes IGN] plateforme logicielle [Termes IGN] projection perspective [Termes IGN] réalité augmentée [Termes IGN] Triangulated Irregular Network [Termes IGN] vue perspective Résumé : (Auteur) An augmented scene delivery system (ASDS) creates and distributes annotated cartographic products in real time from captured still imagery. An ASDS applies augmented reality technology to the visualization of unrestricted exterior viewsheds through an adaptive, perspective-based surface resampling model. This paper describes an ASDS testing platform, introduces a client/server model for distributing augmented scenes over the Internet, presents a linear-time algorithm for resampling dense elevation models for perspective imaging and conducts an execution analysis of the algorithm's implementation, demonstrating that augmented scenes can be constructed and delivered efficiently. The paper also presents a migration path to mobile ASDS platforms with a discussion of the remaining technological problems associated with its implementation. Numéro de notice : A2009-343 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802001313 En ligne : https://doi.org/10.1080/13658810802001313 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29973 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-09051	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-09052	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Selective omission of road features based on mesh density for automatic map generalization / J. Chen in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 1013 - 1032 Titre : Selective omission of road features based on mesh density for automatic map generalization Type de document : Article/Communication Auteurs : J. Chen, Auteur ; Y. Hu, Auteur ; Z. Li, Auteur ; R. Zhao, Auteur ; L. Meng, Auteur Année de publication : 2009 Article en page(s) : pp 1013 - 1032 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] 1:50.000 [Termes IGN] Chine [Termes IGN] densité [Termes IGN] généralisation cartographique automatisée [Termes IGN] réseau routier [Termes IGN] révision cartographique [Termes IGN] route [Vedettes matières IGN] Généralisation Résumé : (Auteur) Selection of roads is an intractable generalization operation due to the difficulty in retaining the density difference and connectivity of a road network. This paper proposes a novel approach of selective omission for roads based on mesh density. The density of a road network and its local variations are calculated using meshes as units. Since maps at different scales usually reveal different densities, different density thresholds for road networks are determined on the basis of theoretical analysis and empirical study of mesh densities on maps at different scales. The selection process starts with the identification of the meshes that have a density beyond the threshold. The mesh with the largest density is first treated. Its bounding road segments are ordered according to their relative importance. The least important segment is eliminated. The remaining segments are then merged with the adjacent mesh, thus forming a new mesh. The selection procedure is repeated until none of the meshes has a density beyond the threshold. Such a process of eliminating road segments and merging meshes can ensure the road network connectivity. In this study, the meshes are classified depending on the types of road segment. For the different mesh types, their density thresholds are set to be different, which can be used as an indicator for the preservation of the density difference. This proposed approach considers topological, geometric and semantic properties of the road network. It was applied to two sets of road networks, and the results of selection are convincing. This methodology has now been adopted for the updating of 1:50,000 maps of China. Copyright Taylor & Francis Numéro de notice : A2009-344 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810802070730 En ligne : https://doi.org/10.1080/13658810802070730 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29974 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-09051	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-09052	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Street hierarchies: a minority of streets account for a majority of traffic flow / Bin Jiang in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 1033 - 1048 Titre : Street hierarchies: a minority of streets account for a majority of traffic flow Type de document : Article/Communication Auteurs : Bin Jiang, Auteur Année de publication : 2009 Article en page(s) : pp 1033 - 1048 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] approche hiérarchique [Termes IGN] distribution de Pareto [Termes IGN] mobilité urbaine [Termes IGN] réseau routier [Termes IGN] trafic routier [Termes IGN] trafic urbain Résumé : (Auteur) Urban streets are hierarchically organized in the sense that a majority of streets are trivial, while a minority of streets is vital. This hierarchy can be simply, but elegantly, characterized by the 80/20 principle, i.e. 80% of streets are less connected (below the average), while 20% of streets are well connected (above the average); out of the 20%, there is 1% of streets that are extremely well connected. This paper, using a European city as an example, examined, at a much more detailed level, such street hierarchies from the perspective of geometric and topological properties. Based on an empirical study, we further proved a previous conjecture that a minority of streets accounts for a majority of traffic flow; more accurately, the 20% of top streets accommodate 80% of traffic flow (20/80), and the 1% of top streets account for more than 20% of traffic flow (1/20). Our study provides new evidence as to how a city is (self-)organized, contributing to the understanding of cities and their evolution using increasingly available mobility geographic information. Copyright Taylor & Francis Numéro de notice : A2009-345 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802004648 En ligne : https://doi.org/10.1080/13658810802004648 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29975 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-09051	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-09052	RAB	Revue	Centre de documentation	En réserve L003	Disponible

A comparative analysis of DEM-based models to estimate the solar radiation in mountainous terrain / J. Ruiz-Arias in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 1049 - 1076 Titre : A comparative analysis of DEM-based models to estimate the solar radiation in mountainous terrain Type de document : Article/Communication Auteurs : J. Ruiz-Arias, Auteur ; J. Tovar-Pescador, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 1049 - 1076 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes IGN] bassin méditerranéen [Termes IGN] éclairement énergétique [Termes IGN] modèle numérique de terrain [Termes IGN] montagne [Termes IGN] rayonnement solaire [Termes IGN] système d'information géographique Résumé : (Auteur) Daily solar radiation estimates of four up-to-date solar radiation models (Solar Analyst, r.sun, SRAD and Solei-32), based on a digital elevation model (DEM), have been evaluated and compared in a Mediterranean environment characterized by a complex topography. The models' estimates were evaluated against 40 days of radiometric data collected in 14 stations. Analyzed sky conditions ranged from completely overcast conditions to clear skies. Additionally, the role of the spatial resolution of the DEM has been evaluated through the use of two different resolutions: 20 and 100 m. Results showed that, under clear-sky conditions, the daily solar radiation variability in the study area may be reasonably estimated with mean bias errors under 10% and root mean square error values of around 15%. On the other hand, results proved that the reliability of the estimates substantially decreases under overcast conditions for some of the solar radiation models. Regarding the role of the DEM spatial resolution, results suggested that the reliability of the estimates for complex topography areas under clear-sky conditions improves using a higher spatial resolution. Numéro de notice : A2009-346 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1080/13658810802022806 En ligne : https://doi.org/10.1080/13658810802022806 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29976 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-09051	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-09052	RAB	Revue	Centre de documentation	En réserve L003	Disponible

A less-is-more approach to geovisualization: enhancing knowledge construction across multidisciplinary teams / C. Jones in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 1077 - 1093 Titre : A less-is-more approach to geovisualization: enhancing knowledge construction across multidisciplinary teams Type de document : Article/Communication Auteurs : C. Jones, Auteur ; Muki M. Haklay, Auteur ; S. Griffiths, Auteur ; L. Vaughan, Auteur Année de publication : 2009 Article en page(s) : pp 1077 - 1093 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] convivialité [Termes IGN] données localisées [Termes IGN] interface utilisateur [Termes IGN] utilisateur [Termes IGN] visualisation de données Résumé : (Auteur) The 'less-is-more' concept in interface design for computer applications has recently gained ground. In this article, the concept is adopted for a user-centered design of geovisualization application. The premise is that using simple and clear design can lead to successful applications with improved ease of use. Over the last three decades, the development of GIS and geovisualization has seen a marked increase in the levels of interaction between the user, the system and the information. However, these enthusiastic advances in technology have not resulted in a significant increase in the number of users. This article suggests that types of user interaction should not simply emphasize traditional GIS functions such as zooming and panning but move towards interaction based on facilitating the knowledge construction process. Considerations are made for the complexity of the system, the task at hand and the skills and limitations of the users. These elements are particularly important when maps act as the mediators in collaboration with users across disciplinary backgrounds. In such cases, the emphasis on simplicity and usability becomes as important as functionality. In these situations a geovisualization application designed for specific uses can maximize effective development of geographic knowledge. In this article, a minimalistic design approach to geovisualization is adopted by creating a geographic profiling tool which shifts the emphasis from technological advances or interaction with the map to the interaction elements key to building the spatial knowledge of GIS experts and non-experts alike. To evaluate this notion of 'less-is-more geovisualization' the profiling tool is evaluated according to usability matrices: efficiency, effectiveness and learnability. How well the Suburban Profiler contributes to these elements is assessed by conducting a video analysis of the types and forms of user interaction available. The video analysis demonstrates the usefulness and usability of the Suburban Profiler, providing proof of concept for 'less-is-more geovisualization'. Copyright Taylor & Francis Numéro de notice : A2009-347 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802705723 En ligne : https://doi.org/10.1080/13658810802705723 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29977 [article]

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079-09051	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-09052	RAB	Revue	Centre de documentation	En réserve L003	Disponible