1,720,982 research outputs found
Official Statistics, Building Censuses, and OpenStreetMap Completeness in Italy
Full text linkThe present study provides a simplified framework verifying the degree of coverage and completeness of settlement maps derived from the OpenStreetMap (OSM) database at the national scale, with a possible use in official statistics. Measuring the completeness of the objects (i.e., buildings) derived from OpenStreetMap database supports its potential use in building/population censuses and other diachronic surveys, as well as administrative sources such as the register of building permits and land-use cadasters. A series of measurements at different scales are proposed and tested for Italy, in line with earlier studies. While recognizing the potential of the OpenStreetMap database for official statistics, the present work underlines the urgent need of an additional (spatially explicit) analysis overcoming the data heterogeneity and sub-optimal coverage of the OSM information source
Trasformazione del paesaggio e mutamento urbano: l'evoluzione della frangia nell'area metropolitana romana
No full textForeste in forma: quale selvicoltura nei boschi delle Marche?
No full textThe article is extracted from the book “Forests in
good shape. Sustainable management in the Marche forests” recently published and funded with a regional project. The regional forest cover increased dramatically (300%) throughout the last century fostering, in the last decade, the implementation of several forest policyand planning tools. Most of the forests are coppiced but the harvesting annual rate is only 1% of the regional forest surface. Traditional management is often detached from modern sylviculture and needs to adapt to multifunctional and sustainable criteri
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Lost in Complexity, Found in Diversity: A Summary Look at the Social Geography of a Mediterranean City
No full textThe present work formulates a descriptive framework looking at the most evident socio-demographic dynamic characteristics of contemporary Mediterranean cities. It has been taken as a paradigmatic case of (changing) social geography of interest to analyse other regions with similar territorial features. An interpretation of social geography in Southern European cities is proposed according to local governance and economic structures, in the view to contain spatial disparities between urban and rural areas. Given the persistence of a deep crisis that affects the economy, institutions and social classes, a unifying interpretation of the development of different forms of expanding cities is reviewed and extensively discussed, introducing the specific case of Athens, Greece. This contribution concludes with a debate of development trajectories of future Mediterranean cities, outlining similarities and differences in the short term
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