1,721,066 research outputs found
Replication Data for: An indicator set for capturing long-term open space fragmentation and urban development dynamics
No full textOpen space preservation is an important spatial policy issue in developed, densely populated countries. Understanding open space dynamics in relation to urban development is critical to the development and evaluation of such policies. Starting from a conceptual model that hypotheses how open space will have developed over the past century we use a set of landscape ecology based indicators to capture these changes from a societal (perceptional) perspective. The indicators are applied to a newly compiled geodatabase of urban development in the Netherlands to show their performance in detecting and understanding past and future trends in open space provision.
The relevant spatial data files are provided here as a geodatabase in ESRI's .gdb format and as separate shapefiles (both as a zipped package including all files and as separate zipfiles for individual shapefiles). The shapefiles can be used in many GIS packages. The .mxd files can be used to add symbology to the data in various versions of ESRI's ArcGIS. The data uses the Dutch Rijksdriehoekstelsel_New (RD_New) projection system. The creation of the datasets and their origin is described in the related paper by Wagtendonk and Koomen (2019)
Replication Data for: An indicator set for capturing long-term open space fragmentation and urban development dynamics
No full textOpen space preservation is an important spatial policy issue in developed, densely populated countries. Understanding open space dynamics in relation to urban development is critical to the development and evaluation of such policies. Starting from a conceptual model that hypotheses how open space will have developed over the past century we use a set of landscape ecology based indicators to capture these changes from a societal (perceptional) perspective. The indicators are applied to a newly compiled geodatabase of urban development in the Netherlands to show their performance in detecting and understanding past and future trends in open space provision.
The relevant spatial data files are provided here as a geodatabase in ESRI's .gdb format and as separate shapefiles (both as a zipped package including all files and as separate zipfiles for individual shapefiles). The shapefiles can be used in many GIS packages. The .mxd files can be used to add symbology to the data in various versions of ESRI's ArcGIS. The data uses the Dutch Rijksdriehoekstelsel_New (RD_New) projection system. The creation of the datasets and their origin is described in the related paper by Wagtendonk and Koomen (2019)
Replication Data for: Open-space preservation in the Netherlands: Planning, practice and prospects
No full textOpen-space preservation is a planner's issue that is constantly debated, in particular on the success of the implemented instruments. We analysed the contribution of Dutch policies to open-space preservation by comparing actual land-use developments within different restrictive planning regimes.
The Green Heart is the central open space within the ring of cities in the western part of the country. Protection of this area aimed at providing residents from the surrounding cities with opportunities for outdoor recreation at a short distance. The Buffer zones were designated in areas with a considerable urbanisation pressure and were intended to prevent specific cities from growing together into a solid urbanised belt, thus keeping separate cities recognisable as such in the landscape. In total, 10 Buffer zones have been designated, in size ranging from very small (3 hectares) to considerable (8700 hectares). Two relatively small zones are found in the heavily urbanised area near the city of Maastricht in the southern tip of the country. The others, in total claiming just over 20,000 hectares, are situated in the Randstad. The impact of these zones on urban development was first analysed in the related paper by Koomen, Dekkers and van Dijk (2008). In a subsequent paper we followed up on this analysis with other and more recent land-use data study the impact of changes in spatial planning and test the robustness of the results (Koomen and Dekkers, 2013).
The relevant spatial data files are provided here as separate shapefiles that can be used in many GIS packages. The data uses the Dutch Rijksdriehoekstelsel_New (RD_New) projection system
Replication Data for: Open-space preservation in the Netherlands: Planning, practice and prospects
No full textOpen-space preservation is a planner's issue that is constantly debated, in particular on the success of the implemented instruments. We analysed the contribution of Dutch policies to open-space preservation by comparing actual land-use developments within different restrictive planning regimes.
The Green Heart is the central open space within the ring of cities in the western part of the country. Protection of this area aimed at providing residents from the surrounding cities with opportunities for outdoor recreation at a short distance. The Buffer zones were designated in areas with a considerable urbanisation pressure and were intended to prevent specific cities from growing together into a solid urbanised belt, thus keeping separate cities recognisable as such in the landscape. In total, 10 Buffer zones have been designated, in size ranging from very small (3 hectares) to considerable (8700 hectares). Two relatively small zones are found in the heavily urbanised area near the city of Maastricht in the southern tip of the country. The others, in total claiming just over 20,000 hectares, are situated in the Randstad. The impact of these zones on urban development was first analysed in the related paper by Koomen, Dekkers and van Dijk (2008). In a subsequent paper we followed up on this analysis with other and more recent land-use data study the impact of changes in spatial planning and test the robustness of the results (Koomen and Dekkers, 2013).
The relevant spatial data files are provided here as separate shapefiles that can be used in many GIS packages. The data uses the Dutch Rijksdriehoekstelsel_New (RD_New) projection system
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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