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Titre : Advances in spatial data handling and GIS : 14th international symposium on spatial data handling Type de document : Actes de congrès Auteurs : Wenzhong Shi, Éditeur scientifique ; Anthony G.O. Yeh, Éditeur scientifique ; Yee Leung, Éditeur scientifique ; Chenghu Zhou, Éditeur scientifique Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2012 Collection : Lecture notes in Geoinformation and Cartography, ISSN 1863-2246 Conférence : SDH 2010, 14th International Symposium on Spatial Data Handling, joint conference with ISPRS 26/05/2010 28/05/2010 Hong-Kong Hong-Kong Proceedings Springer Importance : 239 p. Format : 16 x 24 cm ISBN/ISSN/EAN : 978-3-642-25925-8 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] analyse spatiale
[Termes IGN] détection du bâti
[Termes IGN] données localisées
[Termes IGN] données spatiotemporelles
[Termes IGN] érosion
[Termes IGN] exploration de données géographiques
[Termes IGN] extraction automatique
[Termes IGN] généralisation
[Termes IGN] indexation spatiale
[Termes IGN] modélisation spatio-temporelle
[Termes IGN] reconnaissance de formes
[Termes IGN] risque environnemental
[Termes IGN] service fondé sur la position
[Termes IGN] système d'information géographique
[Termes IGN] variogrammeRésumé : (Editeur) This book provides a cross-section of cutting-edge research areas being pursued by researchers in spatial data handling and geographic information science (GIS). It presents selected papers on the advancement of spatial data handling and GIS in digital cartography, geospatial data integration, geospatial database and data infrastructures, geospatial data modeling, GIS for sustainable development, the interoperability of heterogeneous spatial data systems, location-based services, spatial knowledge discovery and data mining, spatial decision support systems, spatial data structures and algorithms, spatial statistics, spatial data quality and uncertainty, the visualization of spatial data, and web and wireless applications in GIS. Note de contenu : Part 1 - Modeling Space and Time
1. Deriving Space-Time Variograms from Space-Time Autoregressive (STAR) Model Specifications
(Daniel A. Griffith and Gerard B.M. Heuvelink)
Part 2 - Spatial Analysis and Mining
2. Sampling Survey of Heavy Metal in Soil Using SSSI (Aihua Ma, Jinfeng Wang, and Keli Zhang)
3. An Optimised Cellular Automata Model Based on Adaptive Genetic Algorithm for Urban Growth Simulation (Yongjiu Feng and Yan Liu)
4. Exploratory Spatial Data Analysis of Regional Economic Disparities in Beijing During 2001–2007
(Xiaoyi Ma and Tao Pei)
5. An Approach to Discovering Spatial–Temporal Patterns in Geographical Processes (Siyue Chai, Fenzhen Su, and Weiling Ma)
Part 3 - Generalization and Indexing
6. Normalizing Spatial Information to Improve Geographical Information Indexing and Retrieval in Digital Libraries (Damien Palacio, Christian Sallaberry, and Mauro Gaio)
7. Explore Multivariable Spatio-Temporal Data with the Time Wave: Case Study on Meteorological Data (Xia Li and Menno-Jan Kraak)
8. Characterization and Detection of Building Patterns in Cartographic Data: Two Algorithms (Xiang Zhang, Tinghua Ai, and Jantien Stoter)
9. Formalization and Data Enrichment for Automated Evaluation of Building Pattern Preservation
(Xiang Zhang, Jantien Stoter, Tinghua Ai, and Menno-Jan Kraak)
Part 4 - Pattern Recognition and Object Extraction
10. Graph Based Recognition of Grid Pattern in Street Networks
Jing Tian, Tinghua Ai, and Xiaobin Jia
11. Digital Image Processing for Spatial Object Recognition via Integration of Nonlinear Wavelet-Based Denoising and Clustering-Based Segmentation (Zhengmao Ye and Habib Mohamadian)
12. CCSSM: A Toolkit for Information Extraction from Remotely Sensed Imagery (Yong Ge, Chi Zhang, and Hexiang Ba)
Part 5 - Location-Based Service
13. Evaluation of Automatically Extracted Landmarks for Future Driver Assistance Systems (Claus Brenner and Sabine Hofmann)
14. Temporally Adaptive A* Algorithm on Time-Dependent Transportation Network (Nianbo Zheng and Feng Lu)
15. Evaluation of Online Itinerary Planner and Investigation of Possible Enhancement Features
(Homing Tam and L.S.C. Pun-Cheng)
Part 6 - Application of GIS and Remote Sensing
16. A Decision Support Framework for the Risk Assessment of Coastal Erosion in the Yangtze Delta
(Xing Li, Yunxuan Zhou, Fang Shen, Runyuan Kuang, Wen Wu, and Zongsheng Zheng)
17. Estimating Ice Thickness in South Georgia from SRTM Elevation Data (A. Paul R. Cooper, James W. Tate, and Alison J. Cook)Numéro de notice : 20993 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Actes DOI : 10.1007/978-3-642-25926-5 En ligne : http://dx.doi.org/10.1007/978-3-642-25926-5 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=34956 Réservation
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Titre : Auvergne dataset: Testing several geoid computation methods Type de document : Article/Communication Auteurs : Pierre Valty , Auteur ; Henri Duquenne (1948-2010) , Auteur ; Isabelle Panet , Auteur Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2012 Collection : International Association of Geodesy Symposia, ISSN 0939-9585 num. 136 Conférence : IAG 2009 Symposium, Geodesy for Planet Earth 31/08/2009 04/09/2009 Buenos Aires Argentine Proceedings Springer Importance : pp 465 - 472 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] altitude
[Termes IGN] analyse de données
[Termes IGN] anomalie de pesanteur
[Termes IGN] Auvergne
[Termes IGN] formule de Stokes
[Termes IGN] levé gravimétrique
[Termes IGN] quasi-géoïdeRésumé : (auteur) In 2004, the French Institut Géographique National (IGN), upon the request of the steering committee of the European Gravity and Geoid Project, prepared a dataset to test geoid computation methods. It consists of a set of about 240,000 gravity points, three digital terrestrial models (an accurate one, a low-resolution one and a filtered one) and 75 GPS/levelling points to evaluate the quality of the computed geoid models (Duquenne, A data set to test geoid computation methods. In: Dergisi H (eds.), Proceedings of the 1st international symposium of the international gravity field service “gravity field of the earth”, pp 61–65, 2006). In this paper, we compared the following geoid computation methods using the Auvergne dataset: the remove-compute-restore method using the unmodified Stokes’ kernel, the deterministic (Wong and Gore) and stochastic (KTH) modifications of Stokes’ kernel. For each method, we tested different choices of the parameters (radius of integration of Stokes’ anomalies, degree of modification of Stokes’ kernel, radius of integration of terrain effect, etc.). We analysed the results in order to find out which method performs the best and how the geoid modelling method impacts the results, considering the presence of errors in the dataset. The question that this work intends to answer is whether we should put our efforts rather on the theoretical investigations of geoid modelling methodologies, or on the acquisition of gravity measurements. Numéro de notice : C2009-032 Affiliation des auteurs : LAREG (1991-2011) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/978-3-642-20338-1_56 Date de publication en ligne : 16/07/2011 En ligne : https://doi.org/10.1007/978-3-642-20338-1_56 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91509
Titre : Bisociative knowledge discovery : an introduction to concept, algorithms, tools, and applications Type de document : Monographie Auteurs : Michael R. Berthold, Éditeur scientifique Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2012 Collection : Lecture notes in Computer Science, ISSN 0302-9743 num. 7250 Importance : 484 p. ISBN/ISSN/EAN : 978-3-642-31830-6 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Informatique
[Termes IGN] découverte de connaissances
[Termes IGN] exploration de données
[Termes IGN] outil de découverte de connaissances
[Termes IGN] reconnaissance de formes
[Termes IGN] réseau informatique
[Termes IGN] système d'informationRésumé : (Auteur) Modern knowledge discovery methods enable users to discover complex patterns of various types in large information repositories. However, the underlying assumption has always been that the data to which the methods are applied to originates from one domain. The focus of this book, and the BISON project from which the contributions are originating, is a network based integration of various types of data repositories and the development of new ways to analyse and explore the resulting gigantic information networks. Instead of finding well defined global or local patterns they wanted to find domain bridging associations which are, by definition, not well defined since they will be especially interesting if they are sparse and have not been encountered before. The 32 contributions presented in this state-of-the-art volume together with a detailed introduction to the book are organized in topical sections on bisociation; representation and network creation; network analysis; exploration; and applications and evaluation. Note de contenu : Part 1: Bisociation
Part 2: Representation and Network Creation
Part 3: Network Analysis
Part 4: Exploration
Part 5: Applications and EvaluationNuméro de notice : 22735 Affiliation des auteurs : non IGN Autre URL associée : vers Springer Thématique : INFORMATIQUE Nature : Recueil / ouvrage collectif DOI : 10.1007/978-3-642-31830-6 En ligne : https://directory.doabooks.org/handle/20.500.12854/32977 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85571 Documents numériques
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22735_Bisociative knowledge discoveryAdobe Acrobat PDF Calibration of wet tropospheric delays in GPS observation using Raman lidar measurements / Pierre Bosser (2012)
Titre : Calibration of wet tropospheric delays in GPS observation using Raman lidar measurements Type de document : Article/Communication Auteurs : Pierre Bosser , Auteur ; Christian Thom , Auteur ; Olivier Bock , Auteur ; Jacques Pelon, Auteur ; Pascal Willis , Auteur Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2012 Collection : International Association of Geodesy Symposia, ISSN 0939-9585 num. 136 Conférence : IAG 2009 Symposium, Geodesy for Planet Earth 31/08/2009 04/09/2009 Buenos Aires Argentine Proceedings Springer Importance : pp 795 - 800 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] données GPS
[Termes IGN] données lidar
[Termes IGN] étalonnage des données
[Termes IGN] humidité de l'air
[Termes IGN] lidar Raman
[Termes IGN] retard troposphériqueRésumé : (auteur) Water vapor measurements from a Raman lidar developed conjointly by the IGN and the LATMOS/CNRS are used for documenting the water vapor heterogeneities and correcting GPS signal propagation delays in clear sky conditions. We use data from four 6 h-observing sessions during the VAPIC experiment (15 May–15 June 2004). The retrieval of zenith wet delays (ZWDs) from our Raman lidar is shown to agree well with radiosonde (0.6 ± 2.5 mm) and microwave radiometers (−6.6 ± 1.2 and 6.0 ± 3.8 mm) retrievals. ZWDs estimated from GPS data present a good consistency too (−2.0 ± 2.7 mm) but they are still shown to not represent properly the fast evolutions with high frequency variations correlation about 0.12. Part of the errors is also due to multipath and antenna phase center variations. Within this framework, methodologies for integrating of zenith lidar observations into the GPS processing are described. They include also a correction for multipath and antenna phase center variation. The best results are obtained when the lidar ZWDs are used for a priori correcting the GPS phase observations: discrepancies between lidar and GPS estimates are then reduced to −1.1 ± 1.4 mm. It is shown also that mapping function derived from the lidar vertical profiles performs nearly as well as the VMF1 mapping function. Numéro de notice : C2009-033 Affiliation des auteurs : LOEMI+Ext (1985-2011) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/978-3-642-20338-1_100 Date de publication en ligne : 26/07/2011 En ligne : https://doi.org/10.1007/978-3-642-20338-1_100 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91511 Comparison of regional and global GNSS positions, velocities and residual time series / Juliette Legrand (2012)
Titre : Comparison of regional and global GNSS positions, velocities and residual time series Type de document : Article/Communication Auteurs : Juliette Legrand, Auteur ; Nicolas Bergeot, Auteur ; Carine Bruyninx, Auteur ; Guy Wöppelmann , Auteur ; Alvaro Santamaria Gomez, Auteur ; Marie-Noëlle Bouin , Auteur ; Zuheir Altamimi , Auteur Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2012 Collection : International Association of Geodesy Symposia, ISSN 0939-9585 num. 136 Conférence : IAG 2009 Symposium, Geodesy for Planet Earth 31/08/2009 04/09/2009 Buenos Aires Argentine Proceedings Springer Importance : pp 95 - 103 Format : 16 x 24 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] European Terrestrial Reference Frame
[Termes IGN] International Terrestrial Reference Frame
[Termes IGN] résidu
[Termes IGN] retard troposphérique zénithal
[Termes IGN] série temporelleRésumé : (auteur) More than 10 years (1996–2008) of weekly GPS solutions of 299 globally distributed stations have been used to quantify the impact of the reference frame definition and especially the size of the network on the estimated station positions, velocities, and residual position time series. For that purpose, weekly regional solutions (covering the European region) and global solutions have been respectively stacked to obtain regional and global station positions, velocities, and residual position time series. In both cases, the estimated long-term solutions have been tied to the ITRF2005 under minimal constraints using a selected set of reference stations. This study shows that: (1) regional position and velocity solutions can present biases with respect to each other and to global solutions, while in comparison, global solutions are much more stable; (2) the obtained residual position time series are affected by the size of the network with significantly reduced periodic signals in the regional networks, e.g. a 27% reduction of the annual signals in the height component. Numéro de notice : C2009-063 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/978-3-642-20338-1_12 Date de publication en ligne : 26/07/2011 En ligne : https://doi.org/10.1007/978-3-642-20338-1_12 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102021 A dense global velocity field based on GNSS observations: Preliminary Results / Carine Bruyninx (2012)PermalinkEstimating horizontal tropospheric gradients in DORIS data processing: preliminary results / Pascal Willis (2012)PermalinkFlexible dataset combination and modelling by domain decomposition approaches / Isabelle Panet (2012)PermalinkGeographic Information Science, GIScience 2012, 7th International Conference, Columbus, OH, USA, September 2012 / Ningchuan Xiao (2012)PermalinkPermalinkGeOxygene: Built on top of the expertise of the French NMA to host and share advanced GI Science research results / Bénédicte Bucher (2012)PermalinkPermalinkImproved GPS data analysis strategy for tide gauge benchmark monitoring / Alvaro Santamaria Gomez (2012)PermalinkOcean Loading in Brittany, Northwest France: Impact of the GPS Analysis Strategy / Joëlle Nicolas (2012)PermalinkProtocols and assisted tools for effective image-based modeling of architectural elements / Nicolas Nony (2012)Permalink