1,720,970 research outputs found
Estimating spatial and temporal variations of fuel properties using MODIS data set: the experience of CyberPark project
No full textCyberPark 2000: protected aeras management pilot project. Satellite time series vegetation monitoring
No full textMultiscale characterization of spatial pattern over 1996-2006 wildland fire events in the Basilicata region
No full textFrom remote sensing to a serious game: Digital reconstruction of an abandoned medieval village in Southern Italy
No full textThe digital reconstruction of the history of a buried medieval village is the main focus of this paper. The study, based on remote sensing and historical sources, is the starting point of the development of a serious game aimed at educational purposes and exploitation of remote sensing data in the field of edutainment. The selected historical scenario is Yrsum, a village in Basilicata ( South of Italy), founded in the 11th century and abandoned in the 14th century. A LiDAR survey along with satellite multispectral data (suitably elaborated for feature extraction) as well as the historical sources and archaeological records provided useful information on the forma urbis' of the medieval settlement from its foundation to its abandonment. The extraction of the archaeological features and the analysis of urban pattern put in evidence similarities with some medieval settlements based on "motte and bailey" typology that spread in Southern Italy, France and England from the 11th to the 13th century. After the virtual reconstruction, an interactive application articulated both on bi-dimensional and three-dimensional elements have been developed. The major novelty compared to most common video games has been the possibility to derive the game from rigorously scientific data. The player enjoys and learns within a logic of an edutainment game (a combination of education and entertainment), which has become by now a well-established concept but still rarely applied in the field of cultural heritage. (C) 2016 Elsevier Masson SAS. All rights reserved
Towards Quantifying Rural Environment Soil Erosion: RUSLE Model and Remote Sensing Based Approach in Basilicata (Southern Italy)
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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
Abandoned Agricultural Areas: From Quantification to Qualification by Integration of GIS and Remote Sensing
No full textThe agricultural areas abandonment has become one of phenomena that is most influencing the land transformation. This has been evident for some decades already, especially in inland mountainous and hilly areas of the Mediterranean where some types of agricultural activities have been abandoned as less profitable. The effects of this abandonment are not yet very clear but above all vary greatly in relation to morphological, geological and microclimatic characteristics of territory. The drivers of abandonment are also linked to these territorial characteristics with the addition of socio-economic factors. Therefore, studying this process from a spatial and geographical point of view is crucial. To do this, the integration of GIS and remote sensing in an open source environment represents a key approach as it allows to address the issues in a multi-temporal and multi-disciplinary way in an accurate way. In this paper, a case study of Southern Italy (Alto Bradano area Basilicata region) has been chosen to quantify and qualify abandoned agricultural areas. First, a methodology for quantification of abandoned agricultural areas has been implemented through the time series analysis of spectral indices obtained starting from freely available satellite imagery, then a qualitative analysis has been carried out by relating abandoned agricultural areas to some spatial variables. In this way, we want to better define the drivers of change and contextualize them with respect to the local geography in order to have an overall view of the phenomenon of agricultural abandonment
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