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Auteur Cécile Duchêne
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Titre : State-of-the-art of automated generalisation in commercial software Type de document : Chapitre/Contribution Auteurs : Jantien E. Stoter, Éditeur scientifique ; Blanca Baella, Auteur ; Connie Block, Auteur ; Dirk Burghardt, Auteur ; Cécile Duchêne , Auteur ; Maria Pla, Auteur ; Nicolas Regnauld , Auteur ; Guillaume Touya , Auteur ; et al., Auteur Editeur : Dublin : European Spatial Data Research EuroSDR Année de publication : 2010 Collection : EuroSDR official publication, ISSN 0257-0505 num. 58 Importance : pp 9 - 231 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse comparative
[Termes IGN] généralisation automatique de données
[Termes IGN] généralisation cartographique automatisée
[Termes IGN] généralisation géométrique (de visualisation)
[Termes IGN] lisibilité perceptive
[Termes IGN] logiciel de cartographie
[Termes IGN] méthodologie
[Termes IGN] système d'information géographique
[Vedettes matières IGN] GénéralisationRésumé : (Auteur) : This report presents the EuroSDR 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 between 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. Between June 2007 and Spring 2008 tests were performed 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 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 for one test was approximately 1 week. The evaluation, carried out between summer 2008 and spring 2009, consisted of an evaluation of meta aspects (based on information recorded by the testers) and of an evaluation of the generalised datasets
themselves. The latter evaluation consisted of three parts that completed each other: a) automated constraint-based evaluation, b) evaluation which visually compared different outputs for one test case and c) a qualitative evaluation by cartographic experts. From the project results it can be concluded that all systems offer potentials for automated generalisation. However the results highlighted a few issues that identify areas for further development in both research and commercial systems. Although the results show that for many problems solutions do exist (e.g. building simplification), the algorithms are difficult to parameterise and a direct match between parameters and specifications was often missing. In addition none of the four test cases were fully solved by the out-of-the-box systems. While some problems are close to being solved (generalisation of individual buildings and roads), a few problems are far from being solved. Firstly it is impossible with the tested systems to apply different algorithms and/or parameter values in different contexts. This is either not supported or a measure to detect the appropriate contexts is missing. Another remaining generalisation software problem is operations that concern more than one object (e.g. network typification). Also, the generalisation of the topographic context in an integrated manner with the terrain is not appropriately covered in the tested systems. It should be noted that some of the missing functionalities were fixed in the vendors’ parallel tests (e.g. buildings elimination and displacement algorithms in ArcGIS and Radius Clarity). Although these results may seem disappointing, some final thoughts may help to put the results in the right context. Firstly the project had very high ambitions (i.e. many specifications were defined; the selection of test cases focused on known and complex problems; the ultimate aim of the generalisation process was high quality paper maps). Secondly, the project is well received by vendors to push internal developments. In addition it is not a surprise that out-of-the box versions are not capable of fulfilling NMA requirements, which is also shown by the fact that customised systems are used more satisfactory in practice. Consequently customisation of the systems should be further developed and should be one of the focuses in a future project.Note de contenu : 1. PRESENTATION OF THE PROJECT
1.1 Introduction
1.2 Previous research related to map specifications for automated map generalisation
1.3 Scope of the current study
1.4 Project set up
2. METHODOLOGY
2.1 Requirement analysis
2.2 The test process
2.3 Evaluation of system capabilities, test processes and constraint expressions
2.4 Evaluation of generalised outputs
3. RESULTS AND INTERPRETATION
3.1 Outputs of the tests
3.2 Evaluation of the capabilities of the systems
3.3 Evaluation of test processes
3.4 Evaluation of constraint expressions
3.5 Automated evaluation of generalised outputs: results and conclusions
3.6 Evaluation by comparing generalised outputs: results and conclusions
3.7 Expert evaluation: results and conclusions
4. VENDORS' SOLUTIONS
4.1 Vendors' tests
4.2 Developments since 2007 and references to examples from practice
5. CONCLUSIONS AND DISCUSSION
5.1 Answers to research questions
5.2 Conclusions and further research
6. REFERENCES
7. APPENDICESNuméro de notice : H2010-003 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : GEOMATIQUE Nature : Chapître / contribution Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86301 Documents numériques
en open access
H2010-003_ State-of-the-art of automated generalisation in commercial softwareAdobe Acrobat PDF Generalisation, semiotics and map evaluation : feedback from research done at COGIT laboratory, IGN France / Cécile Duchêne (24/11/2009)
contenu dans International workshop on validation of geo-information products for crisis management, Valgeo 2009, 23- 25 November 2009, Ispra, Italy / Christina Corbane (2009)
Titre : Generalisation, semiotics and map evaluation : feedback from research done at COGIT laboratory, IGN France Type de document : Article/Communication Auteurs : Cécile Duchêne , Auteur ; Sidonie Christophe , Auteur ; Anne Ruas , Auteur Editeur : Paris : Institut Géographique National - IGN (1940-2007) Année de publication : 24/11/2009 Conférence : ValGeo 2009, International workshop on validation of geo-information products for crisis management 23/11/2009 25/11/2009 Ispra Italie OA proceedings Importance : 10 p. Format : 21 x 30 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Conception Objet et Généralisation de l'Information Topographique = Cartographie et Géomatique
[Termes IGN] généralisation automatique de données
[Termes IGN] généralisation cartographique automatisée
[Termes IGN] légende cartographique
[Termes IGN] sémiologie graphique
[Termes IGN] symbole graphique
[Vedettes matières IGN] GénéralisationRésumé : (auteur) This paper presents an overview of research studies made at the COGIT laboratory of IGN France in the fields of generalization and symbokl specification, particularly considering evaluation aspects. It then discusses how generalization influences on symbol specification. Numéro de notice : 10607 Affiliation des auteurs : COGIT (1988-2011) Thématique : GEOMATIQUE Nature : Communication DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64207 Methodology for evaluating automated map generalization in commercial software / Jantien E. Stoter in Computers, Environment and Urban Systems, vol 33 n° 5 (September 2009)
[article]
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] GénéralisationMots-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
in Computers, Environment and Urban Systems > vol 33 n° 5 (September 2009) . - pp 311 - 324[article]Generalization approaches for car navigation systems / A. Ozgur Dogru (2009)
Titre : Generalization approaches for car navigation systems Type de document : Article/Communication Auteurs : A. Ozgur Dogru, Auteur ; Cécile Duchêne , Auteur ; N. Van De Weghe, Auteur ; Sébastien Mustière , Auteur ; N. Necla Ulugtekin, Auteur Editeur : Istanbul [Turquie] : Istanbul Technical University Année de publication : 2009 Conférence : ICC 2009, 24th International Cartographic Conference ICA 15/11/2009 21/11/2009 Santiago Chili OA Proceedings Importance : 10 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] arbre (mathématique)
[Termes IGN] carrefour
[Termes IGN] conception cartographique
[Termes IGN] généralisation cartographique automatisée
[Termes IGN] Géoxygène (plateforme de généralisation)
[Termes IGN] instrument embarqué
[Termes IGN] matrice
[Termes IGN] navigation automobile
[Termes IGN] objet géographique linéaire
[Termes IGN] objet géographique zonal
[Termes IGN] réseau routier
[Vedettes matières IGN] GénéralisationRésumé : (Auteur) In this study, the main theories, which were proposed in a PhD study completed at the Cartography Division of Istanbul Technical University, were presented. This study aimed to develop new approaches for covering the generalization based map design deficiencies of car navigation systems currently in use. For this purpose, commercial car navigation products were examined depending on the technologies that they used for map design. Optimization of the road network data and determination of the land use information of areal data were considered as the problems to be solved in this study and a route dependant generalization process was proposed to add value of current car navigation systems. This approach covered generalization processes applied on both areal and linear objects for optimizing the data presented at detailed level. Another approach, which determines the geometries of the road network interchanges and classifies them automatically, was also presented in this paper. This classification approach aimed to formalize interchanges efficiently to generalize them depending on the aim of the application. Two different methods that define interchanges mathematically were used in this context. Interchanges were defined as matrices and tree structures depending on the requirements of the navigating user in these methods. Numéro de notice : 13916 Affiliation des auteurs : COGIT+Ext (1988-2011) Thématique : GEOMATIQUE/INFORMATIQUE Nature : Communication DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64299
Titre : Recherches en généralisation : bilan et perspectives [diaporama] Type de document : Article/Communication Auteurs : Cécile Duchêne , Auteur Editeur : Paris : Institut Géographique National - IGN (1940-2007) Année de publication : 2009 Conférence : Journées Recherche de l'IGN 2009, 18es journées 11/03/2009 12/03/2009 Saint-Mandé France OA program Importance : 37 p. Format : 30 x 21 cm Langues : Français (fre) Descripteur : [Termes IGN] AGENT
[Termes IGN] CartACom
[Termes IGN] données localisées
[Termes IGN] GAEL
[Termes IGN] généralisation automatique de données
[Termes IGN] généralisation cartographique automatisée
[Termes IGN] modèle conceptuel de données localisées
[Termes IGN] programmation par contraintes
[Vedettes matières IGN] GénéralisationNuméro de notice : C2009-055 Affiliation des auteurs : COGIT (1988-2011) Thématique : GEOMATIQUE/INFORMATIQUE Nature : Communication nature-HAL : ComSansActesPubliés-Unpublished DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64209 Documents numériques
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Recherches en généralisation ... - pdf auteurAdobe Acrobat PDF Using belief theory to diagnose control knowledge quality: Application to cartographic generalisation / Patrick Taillandier (2009)PermalinkL'automatisation de la généralisation / Patrick Taillandier in Bulletin d'information scientifique et technique de l'IGN, n° 76 (décembre 2008)PermalinkCombining three multi-agent based generalisation models : Agent, Cartacom and Gael / Cécile Duchêne (01/12/2008)PermalinkGénéralisation et intégration pour un fond vert commun entre l'IFN et l'IGN / Guillaume Touya in Bulletin d'information scientifique et technique de l'IGN, n° 76 (décembre 2008)PermalinkPermalinkKnowledge revision in systems based on an informed tree search strategy: application to cartographic generalisation / Patrick Taillandier (2008)PermalinkMethodologies for the evaluation of generalised data derived with commercial available generalisation systems / Dirk Burghardt (2008)PermalinkPermalinkRévision automatique des connaissances guidant l'exploration informée d'arbres d'états / Patrick Taillandier (2008)PermalinkA study on the state-of-the-art in automated map generalisation implemented in commercial out-of-the-box software / Jantien E. Stoter (2008)Permalink
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