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Auteur William A Mackaness |
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Giving the ‘right’ route directions : the requirements for pedestrian navigation systems / C. Schroder in Transactions in GIS, vol 15 n° 3 (July 2011)
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Titre : Giving the ‘right’ route directions : the requirements for pedestrian navigation systems Type de document : Article/Communication Auteurs : C. Schroder, Auteur ; B. Gittings, Auteur ; William A Mackaness, Auteur Année de publication : 2011 Article en page(s) : pp 419 - 438 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] classification
[Termes IGN] détection automatique
[Termes IGN] itinéraire
[Termes IGN] milieu urbain
[Termes IGN] navigation pédestre
[Termes IGN] point d'intérêt
[Termes IGN] point de repèreRésumé : (Auteur) It is more natural and effective to include a variety of landmarks when providing route directions. Many of the existing solutions, however, behave like car navigation systems and do not include references to such landmarks. This research provides empirical evidence to identify the information requirements for an automated pedestrian navigation system. The two experiments discussed within this article helped identify the criteria that govern the relative saliency of features of interest within an urban environment. There are a large variety of features of interest that can be used as directional aids within route descriptions (buildings, statues, monuments, hills, roads, etc). Different measures are therefore required in order to calculate the saliency of the different classes of features. The research revealed that the most important measures of saliency include name, size, age, and colour. The research confirmed that that relative visibility and the direction of approach to the feature also affect a landmark's saliency. The research also highlighted the role that features of interest play in reorientation, confirmatory, and direction-giving tasks. Numéro de notice : A2011-227 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2011.01266.x Date de publication en ligne : 06/06/2011 En ligne : https://doi.org/10.1111/j.1467-9671.2011.01266.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31005
in Transactions in GIS > vol 15 n° 3 (July 2011) . - pp 419 - 438[article]DTM generalisation : handling large volumes of data for multi-scale mapping / O. Chaudry in Cartographic journal (the), vol 47 n° 4 (November 2010)
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Titre : DTM generalisation : handling large volumes of data for multi-scale mapping Type de document : Article/Communication Auteurs : O. Chaudry, Auteur ; William A Mackaness, Auteur Année de publication : 2010 Article en page(s) : pp 360 - 370 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] données multiéchelles
[Termes IGN] généralisation automatique de données
[Termes IGN] généralisation de MNT
[Termes IGN] modèle numérique de surface
[Termes IGN] modèle numérique de terrain
[Termes IGN] morphologie mathématique
[Termes IGN] partitionnement par bloc
[Termes IGN] représentation multipleRésumé : (Auteur) Map generalisation is a modelling process in which it is typical that detailed, high dimensional geographic phenomena are reduced down to a set of `higher order', yet more generalized set of phenomena (for example, a large cluster of buildings is reduced to `city'). This process of generalisation necessarily requires us to handle large volumes of data which results in high processing overheads. One way of managing this is to partition the data. When geographically partitioning data, we need to partition in such a way that each partition can be generalized without having to consider regions outside any given partition. The focus of this paper is to explore partitioning and generalisation methodologies that can be applied to digital elevation data - the ambition being to derive generalized descriptions of morphology at the National Scale (for the UK). The paper describes and compares two solutions to this problem, and demonstrates how it is possible to apply generalisation algorithms to national coverages. Numéro de notice : A2010-543 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/000870410X12825500202896 Date de publication en ligne : 29/11/2013 En ligne : https://doi.org/10.1179/000870410X12825500202896 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30735
in Cartographic journal (the) > vol 47 n° 4 (November 2010) . - pp 360 - 370[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 030-2010041 RAB Revue Centre de documentation En réserve L003 Disponible Representing forested regions at small scales: automatic derivation from very large scale data / William A Mackaness in Cartographic journal (the), vol 45 n° 1 (February 2008)
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Titre : Representing forested regions at small scales: automatic derivation from very large scale data Type de document : Article/Communication Auteurs : William A Mackaness, Auteur ; S. Perikleous, Auteur ; Omair Chaudhry, Auteur Année de publication : 2008 Article en page(s) : pp 6 - 17 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] 1:250.000
[Termes IGN] carte dérivée
[Termes IGN] forêt tempérée
[Termes IGN] généralisation automatique de données
[Termes IGN] généralisation cartographique automatisée
[Termes IGN] grande échelle
[Termes IGN] Ordnance Survey (UK)
[Termes IGN] petite échelle
[Termes IGN] Royaume-Uni
[Termes IGN] service web géographiqueRésumé : (Auteur) As with any class of feature, it is important to be able to view woodland or forest at multiple levels of detail. At the detailed level, a map can show clusters of trees, tree types, tracks and paths; at the small scale, say 1:250 000, we can discern broad patterns of forests and other land use, which can inform planners and act as input to land resource models. Rather than store such information in separate databases (requiring multiple points of maintenance), the vision is that the information has a single point of storage and maintenance, and that from this detailed level, various, more generalised forms can be automatically derived. This paper presents a methodology and algorithm for automatically deriving forest patches suitable for representation at 1:250 000 scale directly from a detailed dataset. In addition to evaluation of the output, the paper demonstrates how such algorithms can be shared and utilised via 'generalisation web services', arguing that the sharing of such algorithms can help accelerate developments in map generalisation, and increase the uptake of research solutions within commercial systems. Copyright British Cartographic Society Numéro de notice : A2008-130 Affiliation des auteurs : non IGN Thématique : FORET/GEOMATIQUE/INFORMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/000870408X276576 En ligne : https://doi.org/10.1179/000870408X276576 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29125
in Cartographic journal (the) > vol 45 n° 1 (February 2008) . - pp 6 - 17[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 030-08011 RAB Revue Centre de documentation En réserve L003 Disponible Evaluation in the map generalisation process / William A Mackaness (01/01/2007)
Titre : Evaluation in the map generalisation process Type de document : Chapitre/Contribution Auteurs : William A Mackaness, Auteur ; Anne Ruas , Auteur Editeur : Amsterdam [Pays Bas] : Elsevier Année de publication : 01/01/2007 Importance : pp 89 - 111 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] AGENT
[Termes IGN] analyse spatiale
[Termes IGN] évaluation
[Termes IGN] généralisation automatique de données
[Termes IGN] prise en compte du contexte
[Termes IGN] raisonnement
[Vedettes matières IGN] GénéralisationRésumé : (Auteur) In this chapter we discuss the nature of evaluation in the context of automated solutions to map generalisation and highlight the challenges of defining evaluation criteria. Considerable progress has been made in defining and incorporating evaluation criteria in systems that generalise maps over moderately small changes in scale. We seek to give an idealised view of how evaluation methodologies might be incorporated into generalisation systems. Examples are given that illus-trate these ideas. For larger changes in scale, it will be necessary to evolve these techniques, and incorporate evaluation techniques linked to pattern analysis and a more synoptic evaluation of the success of the design solution overall. The chapter highlights the challenges of developing and prioritising evaluation criteria, and where in the process they can be applied. Given the complexity of the task it is important to consider the role of the human in the evaluation process. Numéro de notice : H2007-001 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : GEOMATIQUE/INFORMATIQUE Nature : Chapître / contribution Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=65893 Generalisation of geographic information / William A Mackaness (2007)
Titre : Generalisation of geographic information : Cartographic modelling and applications Type de document : Monographie Auteurs : William A Mackaness, Éditeur scientifique ; L. Tiina Sarjakoski, Éditeur scientifique ; Anne Ruas , Éditeur scientifique Mention d'édition : 1 Editeur : Amsterdam [Pays Bas] : Elsevier Année de publication : 2007 Importance : 370 p. Format : 17 x 25 cm ISBN/ISSN/EAN : 978-0-08-045374-3 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] généralisation cartographique automatisée
[Termes IGN] GPS assisté pour la navigation (technologies)
[Termes IGN] information cartographique
[Termes IGN] information géographique
[Termes IGN] représentation multiple
[Termes IGN] système d'information géographique
[Termes IGN] temps réel
[Vedettes matières IGN] GénéralisationRésumé : (Editeur) Users have come to expect instant access to up-to-date geographical information, with global coverage-presented at widely varying levels of detail, as digital and paper products; customisable data that can readily combined with other geographic information. These requirements present an immense challenge to those supporting the delivery of such services (National Mapping Agencies (NMA), Government Departments, and private business. Generalisation of Geographic Information : Cartographic Modelling and Applications provides detailed review of state of the art technologies associated with these challenges, including the most recent developments in cartometric analysis techniques able to support high levels of automation among multi scale derivation techniques.
The book illustrates the application of these ideas within existing and emerging technologies. In addition to providing a comprehensive theoretical underpinning, the book demonstrates how theoretical developments have translated into commercial systems deployed within NMAs.
The book explores relevance of open systems in support of collaborative research and open source web based map services.Note de contenu : Preface.
1. Understanding Geographic Space (W.A. Mackaness).
2. Conceptual Models of Generalisation and Multiple Representation (L.T. Sarjakoski).
3. A Synoptic View of Generalisation Operators (N. Regnauld, R.B. McMaster).
4. Modelling the Overall Process of Generalisation (L. Harrie, R.Weibel).
5. Evaluation in the Map Generalisation Process (W.A. Mackaness, A. Ruas).
6. Databases Requirements for Generalisation and Multiple Representations (S. Mustière, J. van Smaalen).
7. A Real-Time Generalisation and Map Adaptation Approach for Location-Based Services (T. Sarjokoski , L.T. Sarjokoski).
8. Experiments in building an open generalisation system (A. Edwardes, D. Burghardt, M. Neun).
9. A data warehouse strategy for on-demand multiscale mapping (E. Bernier, Y. Bédard).
10. Relevance of Generalisation to the Extraction and Communication of Wayfinding Information (M. Sester, B. Elias).
11. 3D Building Generalisation (L. Meng, A. Forberg).
12. Characterising space via pattern recognition techniques: Identifying patterns in road networks (F. Heinzle, K-H. Anders).
13. Generalisation of Geographical Networks (R. Thomson, R. Brooks).
14. A Prototype of Generalisation based on the Multi-Agent System Paradigm (A. Ruas, C. Duchêne).
15. Managing Generalisation Updates in IGN Map Production (F. Lecordix, C. Lemarié).
16. Automated generalisation in a map production environment – the KMS Experience (P. West- Nielsen, M. Meyer).
17. Observations and Research Challenges in Map Generalisation and Multiple Representation (W.A. Mackaness, A. Ruas, L.T. Sarjakoski).Numéro de notice : 21298 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=55735 Contient
- Observations and research challenges in map generalisation and multiple representation / William A Mackaness (01/01/2007)
- Managing generalisation updates in IGN map production / François Lecordix (01/01/2007)
- A prototype generalisation system based on the multi-agent system paradigm / Cécile Duchêne (01/01/2007)
- Database requirements for generalisation and multiple representations / Sébastien Mustière (01/01/2007)
- Evaluation in the map generalisation process / William A Mackaness (01/01/2007)
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Code-barres Cote Support Localisation Section Disponibilité 21298-01 37.10 Livre Centre de documentation Géomatique Disponible 21298-02 DEP-TRS Livre LASTIG Dépôt en unité Exclu du prêt Observations and research challenges in map generalisation and multiple representation / William A Mackaness (01/01/2007)PermalinkAn algorithm for localised contour removal over steep terrain / William A Mackaness in Cartographic journal (the), vol 43 n° 2 (July 2006)PermalinkCreating a hydrographic network from its cartographic representation: a case study using Ordnance Survey mastermap data / Nicolas Regnauld in International journal of geographical information science IJGIS, vol 20 n° 6 (july 2006)PermalinkAn integrated approach to the generalization of geological maps / T.C. Downs in Cartographic journal (the), vol 39 n° 2 (December 2002)PermalinkIntegrating multi-agent, object-oriented, and algorithmic techniques for improved automated map generalization / Mathieu Barrault (2001)PermalinkThe application of agents in automated map generalization / Sylvie Lamy in Bulletin du comité français de cartographie, n° 162 (décembre 1999 - février 2000)PermalinkPermalinkComputational processes for map generalization / D.E. Richardson in Cartography and Geographic Information Science, vol 26 n° 1 (January 1999)PermalinkThe development of phenomenological generalization within an object-oriented paradigm / D. Ormsby in Cartography and Geographic Information Science, vol 26 n° 1 (January 1999)Permalinkvol 26 n° 1 - January 1999 - Computational methods for map generalization (Bulletin de Cartography and Geographic Information Science) / American congress on surveying and mappingPermalink