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Building Information Modelling (BIM) for property valuation: A new approach for Turkish Condominium Ownership / Nida Celik Simsek in Survey review, vol 54 n° 384 (May 2022)
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Titre : Building Information Modelling (BIM) for property valuation: A new approach for Turkish Condominium Ownership Type de document : Article/Communication Auteurs : Nida Celik Simsek, Auteur ; Bayram Uzun, Auteur Année de publication : 2022 Article en page(s) : pp 187 - 208 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cadastre étranger
[Termes IGN] cadastre étranger
[Termes IGN] évaluation foncière
[Termes IGN] lever cadastral
[Termes IGN] modélisation 3D du bâti BIM
[Termes IGN] propriété foncière
[Termes IGN] Turquie
[Termes IGN] valeur économique
[Termes IGN] visualisation 3DRésumé : (auteur) In Turkey, calculation of the factors affecting the value of the condominium units of a building via 2D architectural project data leads to problems. One of the biggest problem is the land share calculation. The aim of this study was to establish a mechanism by which the properties of the factors affecting the value can be determined mathematically and to arrive at a value-based land share. For this purpose, the study utilized a 3D virtual Building Information Modelling (BIM) model. The value factors and weights were determined via a questionnaire, 3D BIM model of the structure was created, metric values of the factors were calculated and the nominal values of the condominium units were calculated. This study demonstrate that a building nonexistent in the real world can be represented in a virtual environment and comparable information source can be presented to the expert who will carry out the valuation process. Numéro de notice : A2022-354 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/00396265.2021.1905251 Date de publication en ligne : 02/04/2021 En ligne : https://doi.org/10.1080/00396265.2021.1905251 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100552
in Survey review > vol 54 n° 384 (May 2022) . - pp 187 - 208[article]Revising cadastral data on land boundaries using deep learning in image-based mapping / Bujar Fetai in ISPRS International journal of geo-information, vol 11 n° 5 (May 2022)
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Titre : Revising cadastral data on land boundaries using deep learning in image-based mapping Type de document : Article/Communication Auteurs : Bujar Fetai, Auteur ; Dejan Grigillo, Auteur ; Anka Lisec, Auteur Année de publication : 2022 Article en page(s) : n° 298 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] apprentissage profond
[Termes IGN] cadastre étranger
[Termes IGN] cartographie cadastrale
[Termes IGN] classification par réseau neuronal convolutif
[Termes IGN] détection de contours
[Termes IGN] données cadastrales
[Termes IGN] limite cadastrale
[Termes IGN] point d'appui
[Termes IGN] SlovénieRésumé : (auteur) One of the main concerns of land administration in developed countries is to keep the cadastral system up to date. The goal of this research was to develop an approach to detect visible land boundaries and revise existing cadastral data using deep learning. The convolutional neural network (CNN), based on a modified architecture, was trained using the Berkeley segmentation data set 500 (BSDS500) available online. This dataset is known for edge and boundary detection. The model was tested in two rural areas in Slovenia. The results were evaluated using recall, precision, and the F1 score—as a more appropriate method for unbalanced classes. In terms of detection quality, balanced recall and precision resulted in F1 scores of 0.60 and 0.54 for Ponova vas and Odranci, respectively. With lower recall (completeness), the model was able to predict the boundaries with a precision (correctness) of 0.71 and 0.61. When the cadastral data were revised, the low values were interpreted to mean that the lower the recall, the greater the need to update the existing cadastral data. In the case of Ponova vas, the recall value was less than 0.1, which means that the boundaries did not overlap. In Odranci, 21% of the predicted and cadastral boundaries overlapped. Since the direction of the lines was not a problem, the low recall value (0.21) was mainly due to overly fragmented plots. Overall, the automatic methods are faster (once the model is trained) but less accurate than the manual methods. For a rapid revision of existing cadastral boundaries, an automatic approach is certainly desirable for many national mapping and cadastral agencies, especially in developed countries. Numéro de notice : A2022-357 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3390/ijgi11050298 Date de publication en ligne : 04/05/2022 En ligne : https://doi.org/10.3390/ijgi11050298 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100562
in ISPRS International journal of geo-information > vol 11 n° 5 (May 2022) . - n° 298[article]Exploring the strategy goals and strategy drivers of national mapping, cadastral, and land registry authorities / Erik Hämäläinen in ISPRS International journal of geo-information, vol 11 n° 3 (March 2022)
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Titre : Exploring the strategy goals and strategy drivers of national mapping, cadastral, and land registry authorities Type de document : Article/Communication Auteurs : Erik Hämäläinen, Auteur ; Pauliina Krigsholm, Auteur Année de publication : 2022 Article en page(s) : n° 164 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cadastre étranger
[Termes IGN] base de données foncières
[Termes IGN] cadastre étranger
[Termes IGN] cadastre numérique
[Termes IGN] cartographie cadastrale
[Termes IGN] données publiques
[Termes IGN] Europe (géographie politique)
[Termes IGN] organisme cartographique national
[Termes IGN] sécurité informatique
[Termes IGN] système d'information foncièreRésumé : (auteur) In many western countries, publicly led mapping activities and recording information of land parcels and buildings and the related rights, restrictions, and responsibilities have established their roles as important pillars of a functioning society. National mapping, cadastral, and land registry authorities as public agencies responsible for conducting these tasks are in a key position in shaping the development of the whole land administration sector. Most of these authorities have formulated their purposes, directions, and goals in the form of strategies. There is, however, a lack of understanding of the type of goals these authorities pursue through their strategies and why. Using an online questionnaire as a method, this study explores the strategy goals as well as the strategy drivers of national mapping, cadastral, and land registry authorities. We find that the strategy goals converge to a great extent and relate particularly to digitalization, data properties, customers and needs of society, and organizational development. Further, we observe that the strategy work of these authorities is most often driven by changes in the customer needs and by changes in the government’s policies. The contribution of the study lies in providing an overview of how national mapping, cadastral, and land registry authorities frame their near-future development and in highlighting that albeit the goals, for the most part, align with the qualities of a good, neutral land administration system, the authorities show low tendency to pursue transformative or paradigmatic changes through their strategies. Numéro de notice : A2022-183 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3390/ijgi11030164 Date de publication en ligne : 23/02/2022 En ligne : https://doi.org/10.3390/ijgi11030164 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=99884
in ISPRS International journal of geo-information > vol 11 n° 3 (March 2022) . - n° 164[article]Visualization of 3D property data and assessment of the impact of rendering attributes / Stefan Seipel in Journal of Geovisualization and Spatial Analysis, vol 4 n° 2 (December 2020)
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Titre : Visualization of 3D property data and assessment of the impact of rendering attributes Type de document : Article/Communication Auteurs : Stefan Seipel, Auteur ; Martin Andrée, Auteur ; Karolina Larsson, Auteur ; et al., Auteur Année de publication : 2020 Article en page(s) : n° 23 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] attribut non spatial
[Termes IGN] cadastre 3D
[Termes IGN] cadastre étranger
[Termes IGN] classification barycentrique
[Termes IGN] couleur (rédaction cartographique)
[Termes IGN] mesure de similitude
[Termes IGN] propriété foncière
[Termes IGN] rédaction cartographique
[Termes IGN] rendu (géovisualisation)
[Termes IGN] saillance
[Termes IGN] scène 3D
[Termes IGN] Stockholm (Suède)
[Termes IGN] visualisation cartographique
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) Visualizations of 3D cadastral information incorporating both intrinsically spatial and non-spatial information are examined here. The design of a visualization prototype is linked to real-case 3D property information. In an interview with domain experts, the functional and visual features of the prototype are assessed. The choice of rendering attributes was identified as an important aspect for further analysis. A computational approach to systematic assessment of the consequences of different graphical design choices is proposed. This approach incorporates a colour similarity metric, visual saliency maps, and k-nearest-neighbour (kNN) classification to estimate risks of confusing or overlooking relevant elements in a visualization. The results indicate that transparency is not an independent visual variable, as it affects the apparent colour of 3D objects and makes them inherently more difficult to distinguish. Transparency also influences visual saliency of objects in a scene. The proposed analytic approach was useful for visualization design and revealed that the conscious use of graphical attributes, like combinations of colour, transparency, and line styles, can improve saliency of objects in a 3D scene. Numéro de notice : A2020-796 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s41651-020-00063-6 Date de publication en ligne : 26/10/2020 En ligne : https://doi.org/10.1007/s41651-020-00063-6 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96612
in Journal of Geovisualization and Spatial Analysis > vol 4 n° 2 (December 2020) . - n° 23[article]The legal boundary cadastre in Austria: a success story? / Julius Ernst in Geodetski vestnik, vol 63 n° 2 (June - August 2019)
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Titre : The legal boundary cadastre in Austria: a success story? Type de document : Article/Communication Auteurs : Julius Ernst, Auteur ; Reinfried Mansberger, Auteur ; Gerhardt Muggenhuber, Auteur ; Gerhard Navratil, Auteur ; Stefan Ozlberger, Auteur ; Christoph Twaroch, Auteur Année de publication : 2019 Article en page(s) : pp 234 - 249 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cadastre étranger
[Termes IGN] Autriche
[Termes IGN] base de données foncières
[Termes IGN] cadastre étranger
[Termes IGN] limite cadastrale
[Termes IGN] parcelle cadastrale
[Termes IGN] propriété foncièreRésumé : (auteur) n 2019, the Austrian surveyors will celebrate the 50 years anniversary of the enactment of the Austrian Surveying Act. The date of the enactment of this law was also the hour of birth for the Austrian Legal Boundary Cadastre (germ. der Grenzkataster) and with it a milestone to ensure the legal security of parcel boundaries. The jubilee is taken as the occasion to introduce the development, implementation and running of the Legal Boundary Cadastre to a wider scientific community. After a short history of the Austrian Cadastre, the process of its transition from the Fiscal Cadastre to the Legal Boundary Cadastre is documented in the article. The current situation with strengths and weaknesses of the system is outlined and scheduled developments are introduced. Numéro de notice : A2019-404 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.15292/geodetski-vestnik.2019.02.234-249 En ligne : http://dx.doi.org/10.15292/geodetski-vestnik.2019.02.234-249 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93507
in Geodetski vestnik > vol 63 n° 2 (June - August 2019) . - pp 234 - 249[article]Réservation
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