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Termes IGN > mathématiques > statistique mathématique
statistique mathématique
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biométrie,
échantillonnage (statistique), probabilité, statistique. >>Terme(s) spécifique(s) : analyse de régression, analyse de variance, analyse des données, analyse multivariée, analyse séquentielle, calcul d'erreur, carré latin, corrélation (statistique), efficacité asymptotique (statistique), fonction pseudo-aléatoire, loi des grands nombres, modèle linéaire (statistique), modèle non linéaire (statistique), moindre carré, physique statistique, plan d'expérience, rang et sélection (statistique), rupture (statistique), SAS (logiciel), série chronologique, statistique non paramétrique, statistique robuste, tableau de contingence, test d'hypothèses (statistique), statistique stellaire. Equiv. LCSH : Mathematical statistics. Domaine(s) : 510. |
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Spatial data infrastructures as complex adaptative systems / Lucasz Grus in International journal of geographical information science IJGIS, vol 24 n°3-4 (march 2010)
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Titre : Spatial data infrastructures as complex adaptative systems Type de document : Article/Communication Auteurs : Lucasz Grus, Auteur ; Joep Crompvoets, Auteur ; Arnold K. Bregt, Auteur Année de publication : 2010 Article en page(s) : pp 439 - 463 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] estimation statistique
[Termes IGN] infrastructure nationale des données localisées
[Termes IGN] intégration de données
[Termes IGN] qualité des données
[Termes IGN] système complexeRésumé : (Auteur) Many researchers throughout the world have been struggling to better understand and describe spatial data infrastructures (SDIs). Our knowledge of the real forces and mechanisms behind SDIs is still very limited. The reason for this difficulty might lie in the complex, dynamic and multifaceted nature of SDIs. To evaluate the functioning and effects of SDIs we must have a proper theory and understanding of their nature. This article describes a new approach to understanding SDIs by looking at them through the lens of complex adaptive systems (CASs). CASs are frequently described by the following features and behaviours: complexity, components, self-organization, openness, unpredictability, nonlinearity and adaptability, scale-independence, existence of feedback loop mechanism and sensitivity to initial conditions. In this article both CAS and SDI features are presented, examined and compared using three National SDI case studies from the Netherlands, Australia and Poland. These three National SDIs were carefully analysed to identify CAS features and behaviours. In addition, an Internet survey of SDI experts was carried out to gauge the degree to which they consider SDIs and CASs to be similar. This explorative study provides evidence that to a certain extent SDIs can be viewed as CASs because they have many features in common and behave in a similar way. Studying SDIs as CASs has significant implications for our understanding of SDIs. It will help us to identify and better understand the key factors and conditions for SDI functioning. Assuming that SDIs behave much like CASs, this also has implications for their assessment: assessment techniques typical for linear and predictable systems may not be valid for complex and adaptive systems. This implies that future studies on the development of an SDI assessment framework must consider the complex and adaptive nature of SDIs. Copyright Taylor & Francis Numéro de notice : A2010-144 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802687319 En ligne : http://dx.doi.org/10.1080/13658810802687319 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30339
in International journal of geographical information science IJGIS > vol 24 n°3-4 (march 2010) . - pp 439 - 463[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-2010022 RAB Revue Centre de documentation En réserve L003 Disponible 079-2010021 RAB Revue Centre de documentation En réserve L003 Disponible Terrain modeling from Lidar range data in natural landscapes: a predictive and Bayesian framework / Frédéric Bretar in IEEE Transactions on geoscience and remote sensing, vol 48 n° 3 Tome 2 (March 2010)
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Titre : Terrain modeling from Lidar range data in natural landscapes: a predictive and Bayesian framework Type de document : Article/Communication Auteurs : Frédéric Bretar, Auteur ; Nesrine Chehata , Auteur
Année de publication : 2010 Article en page(s) : pp 1568 - 1578 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] altimètre laser
[Termes IGN] classification bayesienne
[Termes IGN] données lidar
[Termes IGN] filtre de Kalman
[Termes IGN] modèle numérique de terrain
[Termes IGN] montagne
[Termes IGN] semis de pointsRésumé : (Auteur) The Earth's topography, including vegetation and human-made features, reduced to a virtual 3-D representation is a key geographic layer for any extended development or risk management project. Processed from multiple aerial images or from airborne lidar systems, the 3-D topography is first represented as a point cloud. This paper deals with the generation of digital terrain models (DTMs) in natural landscapes. We present a global methodology for estimating the terrain height by deriving a predictive filter paradigm. Under the assumption that the terrain topography (elevation and slope) is regular in a neighboring system, a predictive filter combines linearly the predicted topographic values and the effective measured values. In this paper, such a filter is applied to 3-D lidar data which are known to be of high elevation accuracy. The algorithm generates an adaptive local geometry wherein the elevation distribution of the point cloud is analyzed. Since local terrain elevations depend on the local slope, a predictive filter is first applied on the slopes and then on the terrain elevations. The algorithm propagates through the point cloud following specific rules in order to optimize the probability of computing areas containing terrain points. Considered as an initial surface, the previous DTM is finally regularized in a Bayesian framework. Our approach is based on the definition of an energy function that manages the evolution of a terrain surface. The energy is designed as a compromise between a data attraction term and a regularization term. The minimum of this energy corresponds to the final terrain surface. The methodology is discussed, and some conclusive results are presented on vegetated mountainous areas. Numéro de notice : A2010-273 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2009.2032653 Date de publication en ligne : 04/12/2009 En ligne : https://doi.org/10.1109/TGRS.2009.2032653 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30467
in IEEE Transactions on geoscience and remote sensing > vol 48 n° 3 Tome 2 (March 2010) . - pp 1568 - 1578[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-2010031B RAB Revue Centre de documentation En réserve L003 Disponible Automatic cluster identification for environnemental applications using the self-organizing maps and a new genetic algorithm / T. Oyana in Geocarto international, vol 25 n° 1 (February 2010)
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Titre : Automatic cluster identification for environnemental applications using the self-organizing maps and a new genetic algorithm Type de document : Article/Communication Auteurs : T. Oyana, Auteur ; D. Dai, Auteur Année de publication : 2010 Article en page(s) : pp 53 - 69 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] algorithme génétique
[Termes IGN] analyse de groupement
[Termes IGN] carte de Kohonen
[Termes IGN] découverte de connaissances
[Termes IGN] environnement
[Termes IGN] exploration de données géographiques
[Termes IGN] photo-interprétation assistée par ordinateur
[Termes IGN] système d'information géographiqueRésumé : (Auteur) A rapid increase of environmental data dimensionality emphasizes the importance of developing data-driven inductive approaches to geographic analysis. This article uses a loosely coupled strategy to combine the technique of self-organizing maps (SOM) with a new genetic algorithm (GA) for automatic identification of clusters in multidimensional environmental datasets. In the first stage, we employ the well-known classic SOM because it is able to handle the dimensional interactions and capture the number of clusters via visualization; and thus provide extraordinary insights into original data. In the second stage, this new GA rigorously delineates the cluster boundaries using a flexibly oriented elliptical search window. To test this approach, one synthetic and two real-world datasets are employed. The results confirm a more robust and reliable approach that provides a better understanding and interpretation of massive multivariate environmental datasets, thus maximizing our insights. Other key benefits include the fact that it provides a computationally fast and efficient environment to accurately detect clusters, and is highly flexible. In a nutshell, the article presents a computational approach to facilitate knowledge discovery of massive multivariate environmental datasets; as we are too familiar with their accelerating growth rate. Copyright Taylor & Francis Numéro de notice : A2010-054 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040802711687 Date de publication en ligne : 14/04/2009 En ligne : https://doi.org/10.1080/10106040802711687 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30250
in Geocarto international > vol 25 n° 1 (February 2010) . - pp 53 - 69[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 059-2010011 RAB Revue Centre de documentation En réserve L003 Disponible A bias-free geodetic boundary value problem approach to height datum unification / Alireza A. Ardalan in Journal of geodesy, vol 84 n° 2 (February 2010)
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Titre : A bias-free geodetic boundary value problem approach to height datum unification Type de document : Article/Communication Auteurs : Alireza A. Ardalan, Auteur ; R. Karimi, Auteur ; Markku Poutanen, Auteur Année de publication : 2010 Article en page(s) : pp 123 - 134 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] cote géopotentielle
[Termes IGN] erreur systématique
[Termes IGN] Finlande
[Termes IGN] géoïde local
[Termes IGN] hauteur ellipsoïdale
[Termes IGN] problème des valeurs limites
[Termes IGN] réseau altimétrique local
[Termes IGN] système de référence altimétriqueRésumé : (Auteur) A geodetic boundary value problem (GBVP) approach has been formulated which can be used for solving the problem of height datum unification. The developed technique is applied to a test area in Southwest Finland with approximate size of 1.5° x 3° and the bias of the corresponding local height datum (local geoid) with respect to the geoid is computed. For this purpose the bias-free potential difference and gravity difference observations of the test area are used and the offset (bias) of the height datum, i.e., Finnish Height Datum 2000 (N2000) fixed to Normaal Amsterdams Peil (NAP) as origin point, with respect to the geoid is computed. The results of this computation show that potential of the origin point of N2000, i.e., NAP, is (62636857.68 1 0.5) (m2/s2) and as such is (0.191 1 0.003) (m) under the geoid defined by W 0 = 62636855.8 (m2/s2). As the validity test of our methodology, the test area is divided into two parts and the corresponding potential difference and gravity difference observations are introduced into our GBVP separately and the bias of height datums of the two parts are computed with respect to the geoid. Obtaining approximately the same bias values for the height datums of the two parts being part of one height datum with one origin point proves the validity of our approach. Besides, the latter test shows the capability of our methodology for patch-wise application. Copyright Springer Numéro de notice : A2010-107 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-009-0348-8 Date de publication en ligne : 10/10/2009 En ligne : https://doi.org/10.1007/s00190-009-0348-8 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30303
in Journal of geodesy > vol 84 n° 2 (February 2010) . - pp 123 - 134[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-2010021 SL Revue Centre de documentation Revues en salle Disponible Extending the qualitative capabilities of GIS : Computer-Aided Qualitative GIS / J. Jung in Transactions in GIS, vol 14 n° 1 (February 2010)
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Titre : Extending the qualitative capabilities of GIS : Computer-Aided Qualitative GIS Type de document : Article/Communication Auteurs : J. Jung, Auteur ; S. Elwood, Auteur Année de publication : 2010 Article en page(s) : pp 63 - 87 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] analyse de données
[Termes IGN] données qualitatives
[Termes IGN] logiciel d'analyse de données
[Termes IGN] qualité du processus
[Termes IGN] système d'information géographique
[Termes IGN] visualisation de donnéesRésumé : (Auteur) A number of approaches for integrating GIS and qualitative research have emerged in recent years, as part of a resurgence of interest in mixed methods research in geography. These efforts to integrate qualitative data and qualitative analysis techniques complement a longstanding focus in GIScience upon ways of handling qualitative forms of spatial data and reasoning in digital environments, and extend engagements with 'the qualitative' in GIScience to include discussions of research methodologies. This article contributes to these emerging qualitative GIS methodologies by describing the structures and functions of 'computer-aided qualitative GIS' (CAQ-GIS), an approach for storing and analyzing qualitative, quantitative, and geovisual data in both GIS and computer aided data analysis software. CAQ-GIS uses modified structures from conventional desktop GIS to support storage of qualitative data and analytical codes, together with a parallel coding and analysis process carried out with GIS and a computer-aided data analysis software package. The inductive mixed methods analysis potential of CAQ-GIS is demonstrated with examples from research on children's urban geographies. Copyright Blackwell Publishing Numéro de notice : A2010-005 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2009.01182.x Date de publication en ligne : 17/01/2010 En ligne : https://doi.org/10.1111/j.1467-9671.2009.01182.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30201
in Transactions in GIS > vol 14 n° 1 (February 2010) . - pp 63 - 87[article]Fuzzy image segmentation for urban land-cover classification / I. Lizarazo in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 2 (February 2010)
PermalinkMapping an annual weed with colour-infared aerial photography and image analysis / James H. Everitt in Geocarto international, vol 25 n° 1 (February 2010)
PermalinkMultidimensional Map Algebra: design and implementation of a spatio-temporal GIS processing language / J. Mennis in Transactions in GIS, vol 14 n° 1 (February 2010)
PermalinkImpact of loading effects on determination of the International Terrestrial Reference Frame / Xavier Collilieux in Advances in space research, vol 45 n° 1 ([04/01/2010])
Permalink3D segmentation of forest structure using an adaptive mean shift based procedure / António Ferraz (2010)
PermalinkPermalinkAccuracy 2010 : Proceedings of the Ninth international symposium on spatial accuracy assessment in natural resources and environmental sciences, Leicester, UK, 20 - 23 juillet 2010 / Nicholas J. Tate (2010)
PermalinkAlternative methodologies for the internal quality control of parallele LIDAR strips / A. Habib in IEEE Transactions on geoscience and remote sensing, vol 48 n° 1 Tome 1 (January 2010)
PermalinkAnalyse combinée de données GPS et lidar Raman acquises lors de la campagne COPS pour l'amélioration du positionnement vertical par GPS / Martin Blocquaux (2010)
PermalinkAnalyse de données lidar à retour d'onde complète pour la classification en milieu urbain = Analysis of Full-Waveform lidar data for urban area mapping / Clément Mallet (2010)
PermalinkPermalinkBiais et dérives dans l'altimétrie satellitale à partir de comparaisons avec des marégraphes co-localisés avec des stations GPS / Médéric Gravelle (2010)
PermalinkPermalinkChange detection in submetric optical images using land cover classification tools / Arnaud Le Bris (2010)
PermalinkClassification des tissus urbains à partir de données vectorielles : application à Strasbourg / Anne Puissant (2010)
PermalinkDétection d'empreintes de bâtiments dans un modèle numérique d'élévation : une approche énergétique / Olivier Tournaire (2010)
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PermalinkDire que ma maison est en ville ou à la campagne change-t-il sa généralisation cartographique ? / Camille Delahaye (2010)
PermalinkEstimation of crustal vertical movements with GPS in a geocentric frame, within the framework of the TIGA project / Alvaro Santamaria Gomez (2010)
PermalinkEtude des erreurs systématiques liées à la détermination du géocentre par les mesures DORIS / Marie-Line Gobinddass (2010)
PermalinkPermalinkExtraction semi-automatique de thèmes d’occupation du sol en milieu montagneux à partir d’ortho-images et de connaissances complémentaires, en vue de la production de la carte de base / Arnaud Le Bris (2010)
PermalinkFactors influencing pulse width of small footprint, full wave form airborne laser scanning data / Y.C. Lin in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 1 (January 2010)
PermalinkForest object-oriented classification with customized and automatic attribute selection / Olivier de Joinville (2010)
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PermalinkFusion d'images optique et radar à haute résolution pour la mise à jour de bases de données cartographiques / Vincent Poulain (2010)
PermalinkA general framework for using aggregation in visual exploration of movement data / Gennady Adrienko in Cartographic journal (the), vol 47 n° 1 (January 2010)
PermalinkIn-flight quality assessment and data processing for airborne laser scanning / Philipp Schaer (2010)
PermalinkPermalinkPermalinkIntégrer les coordonnées géographiques dans une analyse multivariée / Françoise de Blomac in SIG la lettre, n° 113 (janvier 2010)
PermalinkLocation-based algorithms for finding sets of corresponding objects over several geo-spatial data sets / E. Safra in International journal of geographical information science IJGIS, vol 24 n°1-2 (january 2010)
PermalinkPermalinkMéthodologie GPS, mesure des déformations verticales et humidité atmosphérique / Marie-Noëlle Bouin (2010)
PermalinkMise en place d’une chaîne de calcul ultra rapide des orbites et des corrections d’horloges des satellites GLONASS / Oussama Ben Abdelaziz (2010)
PermalinkModélisation de façades par analyse conjointe d'images terrestres et de données laser / Antoine Pinte (2010)
PermalinkPermalinkA network representation of raster land-cover patches / L. De Cola in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 1 (January 2010)
PermalinkPermalinkPermalinkPermalinkRelative positions in words: a system that builds descriptions around Allen relations / P. Matsakis in International journal of geographical information science IJGIS, vol 24 n°1-2 (january 2010)
PermalinkRelevés de température au marégraphe de Marseille / Alain Coulomb in Comptes rendus : Géoscience, vol 342 n° 1 (janvier 2010)
PermalinkSAGEO '10, conférence internationale de géomatique et d'analyse spatiale, Toulouse, 17, 18 et 19 novembre 2010 / Claude Monteil (2010)
PermalinkPermalinkPermalinkSpatial interpolation in wireless sensor networks: localized algorithms for variogram modeling and kriging / M. Umer in Geoinformatica, vol 14 n° 1 (January 2010)
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