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EuroSDR research on state-of-the-art of automated generalisation in commercial software: main findings and conclusions / Jantien E. Stoter (2010)    

Public Titre : EuroSDR research on state-of-the-art of automated generalisation in commercial software: main findings and conclusions Type de document : Article/Communication Auteurs : Jantien E. Stoter, Auteur ; Blanca Baella, Auteur ; Connie Blok, Auteur ; Dirk Burghardt, Auteur ; Francisco Dávila, Auteur ; Cécile Duchêne , Auteur ; Maria Pla, Auteur ; Nicolas Regnauld , Auteur ; Guillaume Touya , Auteur Editeur : International Cartographic Association ICA - Association cartographique internationale ACI Année de publication : 2010 Conférence : ICA 2010, 13th ICA Workshop on Generalisation and Multiple Representation 12/09/2010 13/09/2010 Zürich Suisse OA Proceedings Importance : 6 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] généralisation automatique de données [Vedettes matières IGN] Généralisation Résumé : (auteur) [introduction] This paper presents the results of the EuroSDR (European Spatial Data Research) research project that studied the state-of-the-art of automated generalisation in commercial software in a collaboration between National Mapping Agencies (NMAs), research institutes and vendors. The aims of the study were to learn more about generic and specific map requirements of NMAs, to show possibilities and limitations of commercial generalisation software, and to identify areas for further developments based on latest research advances. The project consisted of three main steps: requirements analysis, testing, and evaluation. The requirement analysis (carried out from Oct 2006 till June 2007) resulted in four representative test cases, formalised and harmonised NMA map specifications for automated generalisation as well as an analysis of the defined specifications that shows the similarities and differences between map specifications of different NMAs. The four NMAs who provided the test data are: Ordnance Survey Great Britain (OSGB), Institut Géographique National, France (IGNf), The Netherlands’ Kadaster (Kadaster) and Institut Cartogràfic de Catalunya (ICC). The testing was performed from June 2007 to Spring 2008 by project team members (from NMAs and research institutes) on out-of-the-box versions of four generalisation systems: ArcGIS (ESRI), Change/Push/Typify (University of Hanover), Radius Clarity (1Spatial) and axpand (Axes Systems). At the same time the vendors (except Axes systems) carried out tests with the same test cases with possibly improved and/or customised versions of their systems. The tests resulted in 35 outputs consisting of 700 thematic layers, where it should be noted that the effort to execute one test was approximately 1 week. Several example outputs with an extract of the same test case are shown in Figure 1. The evaluation, carried out from summer 2008 to spring 2009, consisted of an evaluation of meta aspects (based on information recorded by the testers) and of an evaluation of the generalised outputs themselves. The latter evaluation consisted of three parts that complemented each other: a) automated constraint-based evaluation, b) evaluation which visually compared different outputs for one test case and c) a qualitative evaluation of outputs by cartographic experts. Numéro de notice : C2010-052 Affiliation des auteurs : COGIT+Ext (1988-2011) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : https://kartographie.geo.tu-dresden.de/downloads/ica-gen/workshop2010/genemr2010 [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=98917

Documents numériques

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Methodology for evaluating automated map generalization in commercial software / Jantien E. Stoter in Computers, Environment and Urban Systems, vol 33 n° 5 (September 2009)  

Public [article]  inComputers, Environment and Urban Systems > vol 33 n° 5 (September 2009) . - pp 311 - 324 Titre : Methodology for evaluating automated map generalization in commercial software Type de document : Article/Communication Auteurs : Jantien E. Stoter, Auteur ; Dirk Burghardt, Auteur ; Cécile Duchêne , Auteur ; Blanca Baella, Auteur ; Nico Bakker, Auteur ; Connie Blok, Auteur ; Maria Pla, Auteur ; Nicolas Regnauld , Auteur ; Guillaume Touya , Auteur ; Stefan Schmid, Auteur Année de publication : 2009 Article en page(s) : pp 311 - 324 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] état de l'art [Termes IGN] évaluation [Termes IGN] généralisation cartographique automatisée [Termes IGN] logiciel de cartographie [Vedettes matières IGN] Généralisation Mots-clés libres : NMA requirements for automated map generalization  Evaluation of generalized data  Constraint-based generalization  State-of-the-art of generalization Résumé : (Auteur) This paper presents a methodology developed for a study to evaluate the state of the art of automated map generalization in commercial software without applying any customization. The objectives of this study are to learn more about generic and specific requirements for automated map generalization, to show possibilities and limitations of commercial generalization software, and to identify areas for further research. The methodology had to consider all types of heterogeneity to guarantee independent testing and evaluation of available generalization solutions. The paper presents the two main steps of the methodology. The first step is the analysis of map requirements for automated generalization, which consisted of sourcing representative test cases, defining map specifications in generalization constraints, harmonizing constraints across the test cases, and analyzing the types of constraints that were defined. The second step of the methodology is the evaluation of generalized outputs. In this step, three evaluation methods were integrated to balance between human and machine evaluation and to expose possible inconsistencies. In the discussion the applied methodology is evaluated and areas for further research are identified. Numéro de notice : A2009-672 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.compenvurbsys.2009.06.002 Date de publication en ligne : 11/08/2009 En ligne : http://dx.doi.org/10.1016/j.compenvurbsys.2009.06.002 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33578 [article]

Visualization of relationships between spatial patterns in time by cartographic animation / Connie Blok in Cartography and Geographic Information Science, vol 26 n° 2 (April 1999)  

Public [article]  inCartography and Geographic Information Science > vol 26 n° 2 (April 1999) Titre : Visualization of relationships between spatial patterns in time by cartographic animation Type de document : Article/Communication Auteurs : Connie Blok, Auteur ; B. Kobben, Auteur ; A.A. Kuterema, Auteur Année de publication : 1999 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie numérique [Termes IGN] cartographie animée [Termes IGN] données localisées numériques [Termes IGN] espace-temps [Termes IGN] synchronisation [Termes IGN] transport collectif [Termes IGN] visualisation dynamique Résumé : (Auteur) This paper deals with dynamic visualization methods. The focus is on synchronization, one of the aspects that can dynamically control visualization. Synchronization refers to the possibility of running several animations simultaneously and manipulating their starting points in display time to discover relationships. The literature provides examples where animations are juxtaposed to discover (usually) causal relations. Can synchronization be relevant for other relationships ? How complex is its application in practice ? And are there alternatives for the perceptually difficult juxtaposing of animations ? We investigated design options for the visual exploration and analysis of three relationships between spatial patterns in time : convergence, similarity, and stability. For each relationship we used two data sets to produce experimental designs, in which we tried to incorporate knowledge on vision and cognition. It seems useful to distinguish between synchronization in world and in display time. If it is not necessary to view the data sets separately and to manipulate them independently in display time, one animation is sufficient. In other cases, two animations and, sometimes, alternative options for juxtaposing seem useful. However, empirical testing is still required to determine whether the proposed tools are effective. The experimental designs discussed in this paper are published on the Web. Numéro de notice : A1999-182 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1559/152304099782330716 En ligne : https://doi.org/10.1559/152304099782330716 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26379 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
032-99021	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Production of the geomorphologic map of Sri-Lanka / T. Mank in ITC journal, vol 1987 n° 1 (March 1987)

Public [article]  inITC journal > vol 1987 n° 1 (March 1987) . - pp 18 - 22 Titre : Production of the geomorphologic map of Sri-Lanka Type de document : Article/Communication Auteurs : T. Mank, Auteur ; Connie Blok, Auteur Année de publication : 1987 Article en page(s) : pp 18 - 22 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique [Termes IGN] carte géomorphologique [Termes IGN] cartographie étrangère [Termes IGN] géomorphologie locale [Termes IGN] lithologie [Termes IGN] spécification de produit [Termes IGN] Sri Lanka Numéro de notice : A1987-279 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=24368 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
075-87011	RSREV	Revue	Centre de documentation	En réserve L-101	Disponible
075-87012	RSREV	Revue	Centre de documentation	En réserve L-101	Disponible

Testing symbols on a dutch tourist map, scale 1:50000 / Connie Blok in ITC journal, vol 1987 n° 1 (March 1987)

Public [article]  inITC journal > vol 1987 n° 1 (March 1987) . - pp 67 - 72 Titre : Testing symbols on a dutch tourist map, scale 1:50000 Type de document : Article/Communication Auteurs : Connie Blok, Auteur Année de publication : 1987 Article en page(s) : pp 67 - 72 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique [Termes IGN] 1:50.000 [Termes IGN] carte touristique [Termes IGN] légende cartographique [Termes IGN] Pays-Bas [Termes IGN] symbole graphique Numéro de notice : A1987-285 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=24372 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
075-87011	RSREV	Revue	Centre de documentation	En réserve L-101	Disponible
075-87012	RSREV	Revue	Centre de documentation	En réserve L-101	Disponible