1,720,955 research outputs found
Configuration of the basic design parameters and implementation of Greek National Spatial Data Infrastructure: application in the agricultural sector
No full textThe aim of the current thesis is to study the Spatial Data Infrastructure (SDI) specifically for Greece and to introduce a configuration of its key design and implementation parameters, based on the "Tension Synthesis Model" proposal. Additionally, it analyzes and presents the Greek agricultural soil spatial data (definition, processes, approach) and compares it with the requirements of Law 3882/2010 for the Greek NSDI and the European SDI (Infrastructure for Spatial Information in the European Community, INSPIRE). Finally, using the theoretical conclusions of this study, describes two different approaches of integrating Greek soil spatial data in a future Greek NSDI, favoring the one over the other based on the probable viability and compatibility with the thesis results.Αντικείμενο της παρούσας διδακτορικής διατριβής είναι η μελέτη της Υποδομής Γεωχωρικών Πληροφοριών (ΥΓΕΠ, Spatial Data Infrastructure - SDI) ειδικά για την περίπτωση της Ελλάδας και η πρόταση διαμόρφωσης βασικών παραμέτρων σχεδιασμού και υλοποίησης της, με την δόμηση και αξιοποίηση ενός "Μοντέλου Σύνθεσης Τάσεων". Επιπλέον, καταγράφει την υφιστάμενη προσέγγιση από την εδαφολογική επιστημονική κοινότητα, των Ελληνικών αγροτικών εδαφολογικών δεδομένων και την συγκρίνει με τις απαιτήσεις του νόμου 3882/2010 για την Ελληνική Εθνική ΥΓΕΠ (ΕΥΓΕΠ) και της Ευρωπαϊκής ΥΓΕΠ (Infrastructure for Spatial Information in the European Community, INSPIRE). Τέλος αξιοποιώντας τα θεωρητικά συμπεράσματα της παρούσας διατριβής, παραθέτει δυο διαφορετικές προσεγγίσεις (τεχνοκεντρική, κοινωνικοτεχνική) ενσωμάτωσης και αξιοποίησης των Ελληνικών εδαφολογικών δεδομένων σε μια μελλοντική Ελληνική ΕΥΓΕΠ, προκρίνοντας ωστόσο την κοινωνικοτεχνική ως πιο πιθανά βιώσιμη και επιτυχημένη, καθώς και πιο συμβατή τόσο με την σύγχρονη θεωρία όσο και με τα αποτελέσματα της παρούσας διατριβής
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
Greek National Spatial Data Infrastructure. Attempts towards design and implementation.
Get PDFSpatial Data Infrastructure (SDI) is a long term, evolving process without a priori known results. Different countries try to develop a National SDI (NSDI) not always with a successful outcome. Although the successes are presented thoroughly (e.g. SDI best practice), it is equally important to highlight unsuccessful efforts in order to comprehensively examine different aspects of the SDI development and to acquire a more holistic approach and integrated perspective on the subject. The first Greek NSDI effort that is presented in this paper is an example of an unfruitful first attempt. Examination and assessment of this effort, lead to interesting and hopefully constructive conclusions towards a broader understanding of the SDI development. In order this first effort to be assessed, three time periods in the Greek spatial evolution are determined. These periods seem to have affected each other. People, concepts and inadequacies of a period appeared also during the next one, forming a kind of pattern. The discussion of aspects that influenced and characterized this effort reveal the multiple difficulties and problems the Greek NSDI development had to face
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
