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Titre : Bases de données ethnographiques Type de document : Article/Communication Auteurs : Françoise de Blomac, Auteur Année de publication : 2006 Article en page(s) : pp 13 - 13 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] Alaska (Etats-Unis)
[Termes IGN] base de données thématiques
[Termes IGN] données localisées
[Termes IGN] ethnographie
[Termes IGN] imprécision géométrique
[Termes IGN] modèle conceptuel de données localisées
[Termes IGN] modélisation spatio-temporelleRésumé : (Auteur) Ana-Maria Olteanu travaille sur la modélisation de données imprécises. Elle a trouvé un terrain de choix en Alaska, grâce à une collaboration avec le Musée du Quai Branly. Une expérience originale qui sort l'information géographique des sentiers battus pour longer le fleuve Yukon. Numéro de notice : A2006-129 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27856
in SIG la lettre > n° 76 (avril 2006) . - pp 13 - 13[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 286-06041 RAB Revue Centre de documentation En réserve L003 Disponible Can error explain map differences over time? / Robert Gilmore Pontius in Cartography and Geographic Information Science, vol 33 n° 2 (April 2006)
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[article]
Titre : Can error explain map differences over time? Type de document : Article/Communication Auteurs : Robert Gilmore Pontius, Auteur ; C.D. Lippitt, Auteur Année de publication : 2006 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie
[Termes IGN] analyse de sensibilité
[Termes IGN] analyse diachronique
[Termes IGN] carte d'occupation du sol
[Termes IGN] incertitude des données
[Termes IGN] Massachusetts (Etats-Unis)
[Termes IGN] matrice de confusionRésumé : (Auteur) This paper presents methods to test whether map error can explain the observed differences between two points in time among categories of land cover in maps. Such differences may be due to two reasons: error in the maps and change on the ground. Our methods use matrix algebra: (1) to determine whether error can explain specific types of observed categorical transitions between two maps, (2) to represent visually the differences between the maps that error cannot explain, and (3) to examine how the results are sensitive to possible variation in map error. The methods complement conventional accuracy assessment because they rely on standard confusion matrices that use either a random or a stratified sampling design. We illustrate the methods with maps from 1971 and 1999, which show seven land-cover categories for central Massachusetts. The methods detect four transitions from agriculture, range, forest, and barren in 1971 to built in 1999, which a 15 percent error cannot explain. Sensitivity analysis reveals that if the accuracy of the maps were less than 77 percent, then error could explain virtually all of the observed differences between the maps. The paper discusses the assumptions behind the methods and articulates priorities for future research. Copyright CaGISociety. Numéro de notice : A2006-288 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1559/152304006777681706 En ligne : https://doi.org/10.1559/152304006777681706 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28015
in Cartography and Geographic Information Science > vol 33 n° 2 (April 2006)[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 032-06021 RAB Revue Centre de documentation En réserve L003 Disponible A GIS analysis of the relationship between criminal offenses and parks in Kansas City, Kansas / N. Demotto in Cartography and Geographic Information Science, vol 33 n° 2 (April 2006)
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[article]
Titre : A GIS analysis of the relationship between criminal offenses and parks in Kansas City, Kansas Type de document : Article/Communication Auteurs : N. Demotto, Auteur ; C.P. Davies, Auteur Année de publication : 2006 Article en page(s) : pp 141 - 157 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] espace vert
[Termes IGN] infraction
[Termes IGN] Kansas (Etats-Unis ; état)
[Termes IGN] milieu urbain
[Termes IGN] répartition géographique
[Termes IGN] système d'information géographiqueRésumé : (Auteur) Most urban green space research focuses on the social benefits of parks and recreational areas. However, in areas with high levels of resource deprivation and physical disorder, parks may function as criminal marketplaces. Parks in such areas may cease to provide net benefits to the surrounding community and instead serve as a vector for criminal activity. Parks in eastern Kansas City, Kansas, are examined in terms of the probability of criminal marketplaces and beneficial social contribution. Variables for resource deprivation and social disorder are calculated for the study area and compared to national aggregates to identify which parks may behave as criminal marketplaces. In such cases, parks should exhibit an inverse relationship between distance from a park and number of criminal offenses per acre. Evaluating the incidence of crime near parks using geographic information systems (GIS) buffer analysis, proximity analysis, and spatial statistics demonstrates that parks in areas of extreme resource deprivation do not serve beneficial social roles, and some parks contradict conventional criminal justice and urban economic theory. Numéro de notice : A2006-287 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1559/152304006777681715 En ligne : https://doi.org/10.1559/152304006777681715 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28014
in Cartography and Geographic Information Science > vol 33 n° 2 (April 2006) . - pp 141 - 157[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 032-06021 RAB Revue Centre de documentation En réserve L003 Disponible A new algorithm for continuous area cartogram construction with triangulation of regions and restriction on bearing changes of edges / R. Inoue in Cartography and Geographic Information Science, vol 33 n° 2 (April 2006)
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[article]
Titre : A new algorithm for continuous area cartogram construction with triangulation of regions and restriction on bearing changes of edges Type de document : Article/Communication Auteurs : R. Inoue, Auteur ; E. Shimizu, Auteur Année de publication : 2006 Article en page(s) : pp 115 - 125 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie numérique
[Termes IGN] cartogramme
[Termes IGN] démographie
[Termes IGN] données statistiques
[Termes IGN] Etats-Unis
[Termes IGN] méthode des moindres carrés
[Termes IGN] triangulation de DelaunayRésumé : (Auteur) A continuous area cartogram is a transformed map in which regions are resized relative to their data. It is considered an effective visualization tool for statistical data, and many solutions have been proposed. However, most of these solutions are not mathematically clear or user friendly; further, they do not provide visually elegant area cartograms. An essential condition for the construction of a visually elegant area cartogram is that the resultant region shape should resemble the corresponding regions on geographical maps. Since it is impossible to determine the shape of a region based only on the information of size, area cartogram construction is an ill-posed problem that requires regularization. In this study, we propose a construction algorithm that involves triangulation of regions and regularization through restrictions on the bearing changes of the edges in order to obtain visually clear results. First, we formulate a construction using nonlinear least squares. Then, by linearizing, we derive a simple formula to create area cartograms. The application of our algorithm to the USA population datasets reveals that our algorithm has mathematical clarity and is user friendly. Copyright CaGISociety Numéro de notice : A2006-286 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1559/152304006777681698 En ligne : https://doi.org/10.1559/152304006777681698 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28013
in Cartography and Geographic Information Science > vol 33 n° 2 (April 2006) . - pp 115 - 125[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 032-06021 RAB Revue Centre de documentation En réserve L003 Disponible Comparison of automated watershed delineations: effects on land cover areas, percentages, and relationships to nutrient discharges / M.E. Baker in Photogrammetric Engineering & Remote Sensing, PERS, vol 72 n° 2 (February 2006)
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[article]
Titre : Comparison of automated watershed delineations: effects on land cover areas, percentages, and relationships to nutrient discharges Type de document : Article/Communication Auteurs : M.E. Baker, Auteur ; D.E. Weller, Auteur ; T.E. Jordan, Auteur Année de publication : 2006 Article en page(s) : pp 159 - 168 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] analyse comparative
[Termes IGN] automatisation
[Termes IGN] bassin hydrographique
[Termes IGN] Chesapeake (baie de)
[Termes IGN] détection de contours
[Termes IGN] modèle numérique de surface
[Termes IGN] nitrate
[Termes IGN] occupation du sol
[Termes IGN] parcelle agricole
[Termes IGN] sédimentRésumé : (Auteur) We compared manual delineations with those derived from ten automated delineations of 420 watersheds in four physiographic provinces of the Chesapeake Basin. Automated methods included commercial DEM-based routines and different parameterizations of four enhanced methods: stream burning, normalized excavation, surface reconditioning, and normalized reconditioning. Un-enhanced methods resulted in individual watershed boundaries with some gross discrepancies in watershed size relative to manual delineations (error rate of 0.22 > 25 percent difference compared to manual) and significantly different watershed size distributions (Mann-Whitney U p = 0.012). Integrating mapped streams through enhanced methods substantially improved correspondence with manual watersheds (error rates of only 0.08-0.02 > 25 percent difference). Analysis of cropland area among methods showed a significant difference between manual estimates and un-enhanced estimates (p = 0.049) that was corrected using enhanced algorithms. Subsequent analysis of percent cropland revealed that measurements of land cover proportions were not always affected by delineation errors. However, differences were large enough to influence regressions with stream nitrate-N at the 90 percent confidence level within one physiographic province. Enhanced delineations produced statistical relationships between percent cropland and nitrate-N concentrations consistent with manual delineations. The results provide support for enhanced automated watershed delineation within the Chesapeake Basin and suggest that normalized excavation can be an effective augmentation of existing stream burning and reconditioning procedures. Numéro de notice : A2006-038 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.72.2.159 En ligne : https://doi.org/10.14358/PERS.72.2.159 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27765
in Photogrammetric Engineering & Remote Sensing, PERS > vol 72 n° 2 (February 2006) . - pp 159 - 168[article]Corrections for cluster-plot slop / Harry T. Valentine in Forest science, vol 52 n° 1 (February 2006)
PermalinkIncorporating remote sensing information in modelling house values: a regression tree approach / D. Yu in Photogrammetric Engineering & Remote Sensing, PERS, vol 72 n° 2 (February 2006)
PermalinkUtilizing calibrated GPS reflected signals to estimate soil reflectivity and dielectric constant: results from SMEX02 / S.J. Katzberg in Remote sensing of environment, vol 100 n° 1 (15/01/2006)
PermalinkPermalinkProceedings of the 8th Annual Forest Inventory and Analysis Symposium, 2006, October 16-19, Monterey, CA / Ronald E. McRoberts (2006)
PermalinkA uniform sky illumination model to enhance shading of terrain and urban areas / Patrick Kennelly in Cartography and Geographic Information Science, vol 33 n° 1 (January 2006)
PermalinkApplication of multiple endmember spectral mixture analysis (MESMA) to AVIRIS imagery for coastal salt marsh mapping: a case study in China Camp, CA, USA / L. Li in International Journal of Remote Sensing IJRS, vol 26 n° 23 (December 2005)
PermalinkIntegrating LIDAR elevation data, multi-spectral imagery and neural network modelling for marsh characterization / J.T. Morris in International Journal of Remote Sensing IJRS, vol 26 n° 23 (December 2005)
PermalinkMapping submergent aquatic vegetation in the US Great Lakes using Quickbird satellite data / P.T. Wolter in International Journal of Remote Sensing IJRS, vol 26 n° 23 (December 2005)
PermalinkAnalysis of long-range network RTK during a severe ionospheric storm / Pawel Wielgosz in Journal of geodesy, vol 79 n° 9 (December 2005)
PermalinkMapping impervious surface type and sub-pixel abundance using Hyperion hyperspectral imagery / J. Falcone in Geocarto international, vol 20 n° 4 (December 2005 - February 2006)
PermalinkMonitoring and modelling cropland loss in rapidly growing urban and depopulating rural counties using remotely sensed data and GIS / A.N. Petrov in Geocarto international, vol 20 n° 4 (December 2005 - February 2006)
PermalinkQuantitative classification as a tool to show change in an urbanizing watershed / W.B. Clapham in International Journal of Remote Sensing IJRS, vol 26 n° 22 (November 2005)
PermalinkEstimating sub-pixel surface roughness using remotely sensed stereoscopic data / A. Mushkin in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)
PermalinkClassifying and mapping wildfire severity: a comparison of methods / C.K. Brewer in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 11 (November 2005)
PermalinkEstimating forest biomass using small footprint LiDAR data: An individual tree-based approach that incorporates training data / Z.J. Bortolot in ISPRS Journal of photogrammetry and remote sensing, vol 59 n° 6 (November 2005)
PermalinkPermalinkChange detection with heterogeneous data using ecoregional stratification, statistical summaries and a land allocation algorithm / K.M. Bergen in Remote sensing of environment, vol 97 n° 4 (15/09/2005)
PermalinkImage misregistration error in change measurements / H. Wang in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 9 (September 2005)
PermalinkRUSLE [revised universal soil loss equation] applied in a GIS framework: calculating the LS factor and deriving homogenous patches for estimating soil loss / L.A. Lewis in International journal of geographical information science IJGIS, vol 19 n° 7 (august 2005)
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