1,720,963 research outputs found
An Integrated survey for Cultural Heritage Mapping. The Spanish Fortress (Italy) case-study
No full textRemote sensing is a powerful tool for mapping and monitoring Earth. In this work different imaging techniques based on optical and Synthetic Aperture Radar (SAR) data are integrated, in order to show a multi-source and multi-sensory analysis based on the use of remotely acquired data. In particular spaceborne SAR data, Light Detection And Ranging (LiDAR) and data acquired by in situ surveying techniques with a Terrestrial Laser Scanner (TLS) are integrated, in a process aimed at the mapping of cultural heritage asset. Experimental results concerning a test site located in Italy are shown
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
Detection and monitoring of facilities exposed to subsidence phenomena via past and current generation SAR sensors
No full textThe identification of facilities in areas affected by subsidence phenomena represents a fundamental activity in processes dealing with land management. For this kind of phenomena, the analyses may be hampered by the lack of official subsidence zoning maps because of the wide extension of the affected areas. This is mainly due to the costs necessary for
measurements and surveys to be carried out via conventional in situ techniques which can turn out to be unaffordable for the authorities in charge of land management. In this regard, during the last decade the use of remote sensing data, such as medium resolution synthetic aperture radar (SAR) images processed via differential interferometry algorithms (DInSAR), has proven its benefits for the detection and monitoring of facilities (i.e., buildings and infrastructures) in subsiding areas. Currently, the improved resolution and coverage of the ultimate generation SAR sensors seem very promising for consequence analyses of facilities,
although displacement time series are still limited for long-term studies. In this paper, analyses of DInSAR data acquired via both medium (ERS-ENVISAT) and high (COSMO-SkyMed)
resolution sensors are carried out over a densely urbanized flat area in southern Italy so as to show how the appropriate use of DInSAR data at different scales can valuably help in the
detection and monitoring of damageable facilities
In situ and satellite long-term monitoring of slow clayey landslides and of the structures built on them
No full textThis paper reports the results of a long-term monitoring of the slow movements of two deep earthflows in tectonized clay shales of southern Apennines. The cumulated movements have caused over the years severe damage to buildings and infrastructure, with important social and economic costs. Deep and superficial displacements, along with pore water pressures, are being monitored since 2005; in some areas of the slope, displacement monitoring by inclinometers started about 30 years ago. The kinematics of the landslides have been clarified sufficiently on the basis of ground-based measurements. On the other hand, the mostly N-S orientation of displacements, and the rather limited urbanization, make it rather challenging to monitor the area by satellite interferometry methodology. To minimize such problem, satellite data relative to areas where the displacements and their directions are clearly determined by inclinometers and GPS were analysed at the most detailed scale of analysis. The data validation allowed to confidently exploit remote sensing results in a wider area. Thus, images acquired by the COSMO-SkyMed satellite system, supplemented by ERS and Envisat data (available since 1993), allowed the reconstruction of the kinematic history of the urbanized area even where inclinometer displacement series were available only over short periods. Indications about the effectiveness of the remedial measures constructed in the area under study could also be obtained
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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