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Applications of signal detection theory to Geographic Information Science / A. Griffin in Cartographica, vol 44 n° 3 (September 2009)  

Public [article]  inCartographica > vol 44 n° 3 (September 2009) . - pp 145 - 158 Titre : Applications of signal detection theory to Geographic Information Science Type de document : Article/Communication Auteurs : A. Griffin, Auteur ; Scott Bell, Auteur Année de publication : 2009 Article en page(s) : pp 145 - 158 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] aide à la décision [Termes IGN] détection du signal [Termes IGN] incertitude des données [Termes IGN] système d'information géographique [Termes IGN] théorie du signal [Termes IGN] utilisateur Résumé : (Auteur) Signal detection theory (SDT) is a framework used by psychologists to study decision making under uncertain conditions. While we often know a great deal about how different methodological choices can affect the outcome of an analysis, we know less about how information end users interpret and understand competing outcomes in the context of the decisions they are trying to make. We contend that such information would be useful and assert that SDT analysis is one method of building this understanding. We provide an introduction to SDT methods and an example of the methods applied to a navigation experiment, discuss why SDT may be useful for GIScientists, and provide several examples of other potential application areas. Copyright University of Toronto Press Numéro de notice : A2009-408 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.3138/carto.44.3.145 Date de publication en ligne : 02/10/2009 En ligne : https://doi.org/10.3138/carto.44.3.145 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30039 [article]

Exemplaires(1)

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031-09031	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Naïve Cartography : how intuitions about display configuration can hurt performance / M. Hegarty in Cartographica, vol 44 n° 3 (September 2009)  

Public [article]  inCartographica > vol 44 n° 3 (September 2009) . - pp 171 - 186 Titre : Naïve Cartography : how intuitions about display configuration can hurt performance Type de document : Article/Communication Auteurs : M. Hegarty, Auteur ; H. Smallman, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 171 - 186 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] animation graphique [Termes IGN] communication cartographique [Termes IGN] conception cartographique [Termes IGN] désinformation [Termes IGN] langage cartographique [Termes IGN] lecture de carte [Termes IGN] performance [Termes IGN] qualité cartographique [Termes IGN] représentation cartographique [Termes IGN] représentation mentale spatiale [Termes IGN] visualisation cartographique [Vedettes matières IGN] Cartologie Résumé : (Auteur) Map-making has traditionally been the domain of professional cartographers, but with the advent of interactive display systems, users now have the flexibility to create and configure their own digital maps and other visual displays. This flexibility can be beneficial only if users have good intuitions about which display configurations are effective or ineffective for different tasks. Here we examine people's intuitions about display effectiveness and whether these intuitions match the actual effectiveness of different displays. Surveys of undergraduate students and post-graduate meteorology students reveal that they consistently prefer enhanced displays, especially those that add animation and realism. These naïve intuitions contrast with the principles of cartography, which emphasize the importance of abstracting from the real world to create simple displays that make task-relevant information salient. Both a review of objective studies and a new study presented here support traditional principles of cartography and are inconsistent with naïve intuitions. We interpret these studies in relation to new theoretical notions of users' folk fallacies about how perception works, and derive implications for the design of interactive display systems and education. Copyright University of Toronto Press Numéro de notice : A2009-409 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.3138/carto.44.3.171 Date de publication en ligne : 02/10/2009 En ligne : https://doi.org/10.3138/carto.44.3.171 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30040 [article]

Exemplaires(1)

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031-09031	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Navigation tasks with small-display maps : the sum of the parts does not equal the whole / J. Dillemuth in Cartographica, vol 44 n° 3 (September 2009)  

Public [article]  inCartographica > vol 44 n° 3 (September 2009) . - pp 187 - 200 Titre : Navigation tasks with small-display maps : the sum of the parts does not equal the whole Type de document : Article/Communication Auteurs : J. Dillemuth, Auteur Année de publication : 2009 Article en page(s) : pp 187 - 200 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie [Termes IGN] acquisition de connaissances [Termes IGN] carte cognitive [Termes IGN] cartographie pour écran mobile [Termes IGN] croquis topographique [Termes IGN] lecture de carte [Termes IGN] navigation pédestre [Termes IGN] petit écran [Termes IGN] représentation mentale spatiale Résumé : (Auteur) A key strength of a map for navigation is that it can show the features of an environment and their spatial relationships over an area too large to be perceived through direct experience. This characteristic is important for navigation, including planning travel, making decisions while en route, and developing a user's cognitive map. But what happens on a small display, such as that of a cell phone, when, instead of seeing the entire area of interest, the user can view only a discrete section of the map at any time? This article presents research investigating the implications of a small display for map use and spatial knowledge acquisition. A research study was conducted with 80 participants using a map to answer distance and direction questions in one of four viewable-extent conditions, ranging from 10°/o to 100% of the map viewable at a time. Map-use results showed that small viewable extents hindered performance with respect to accuracy and response time but had no effect on participants' confidence in their performance on the navigation tasks. Tests of spatial knowledge acquisition showed differences across conditions for recall tasks, but a sketch-map analysis revealed no differences based on viewable extent. Copyright University of Toronto Press Numéro de notice : A2009-410 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.3138/carto.44.3.187 Date de publication en ligne : 02/10/2009 En ligne : https://doi.org/10.3138/carto.44.3.187 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30041 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
031-09031	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Colour-enhanced star plot glyphs : can salient shape characteristics be overcome? / Alexander Klippel in Cartographica, vol 44 n° 3 (September 2009)  

Public [article]  inCartographica > vol 44 n° 3 (September 2009) . - pp 217 - 232 Titre : Colour-enhanced star plot glyphs : can salient shape characteristics be overcome? Type de document : Article/Communication Auteurs : Alexander Klippel, Auteur ; F. Hardisty, Auteur ; R. Li, Auteur ; C. Weaver, Auteur Année de publication : 2009 Article en page(s) : pp 217 - 232 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Rédaction cartographique [Termes IGN] analyse discriminante [Termes IGN] classification [Termes IGN] couleur (rédaction cartographique) [Termes IGN] lisibilité perceptive [Termes IGN] variable visuelle Résumé : (Auteur) This article reports two experiments addressing the question of how the shape characteristics of star plot glyphs influence classification tasks and whether additional graphic features such as colour can be used to counterbalance the effects of shape characteristics. In a previous study we found that salient shapes of star plot glyphs, such as "has one spike," influence the classification of the data represented by the glyphs. The shape differences in star plot glyphs are induced by assigning variables to rays in different ways. The first two experiments showed shape influences; we then conducted two follow-up studies to shed more light on the influence of shape. First, to address the question of how the classification of star plot glyphs would be affected if they were stripped of their meaning, participants were asked to group star plot glyphs as shapes. The second study colour-coded the rays of star plot glyphs to focus attention on differences in salient shapes; for example, the general shape characteristic "has one spike" cannot be applied so easily if each spike is a different colour. The results show that colour-enhancing star plot glyphs improves processing speed and reduces the influence of salient shape characteristics. Copyright University of Toronto Press Numéro de notice : A2009-411 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.3138/carto.44.3.217 Date de publication en ligne : 02/10/2009 En ligne : https://doi.org/10.3138/carto.44.3.217 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30042 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
031-09031	RAB	Revue	Centre de documentation	En réserve L003	Disponible