1,720,967 research outputs found
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
"Cum populo et non cum milicia" : un inedito frammento di statuti piacentini (metà secolo XIII)
Get PDFAmong all the parchments used as cover material for notarial registers in the city of Piacenza, it stand out a bifolium containing a part of the most ancient communal statutes that dates back to the second half of 13th century. these unreleased statutes are meant to be added to the list of the already known ones. this paper aims to point out some aspects of the political context in which the statutes were edited. In this respect, it will be worth to take into account the clash between the milites and the Popolo of Piacenza, the fight against the Papacy and the Empire, and finally the lordship of Oberto Pelavicino, who controlled the city from 1253 to 1266. this paper will also provide a picture of the political support he received from the Popolo of Piacenza and the resulting relationship between them
I podestà di Oberto Pelavicino nell’Italia settentrionale (1250-1266)
No full textIl marchese Oberto Pelavicino, dopo aver ricoperto la carica di vicario imperiale sotto Federico II e Corrado IV, tra il 1250 e il 1266 fu signore di alcune tra le principali città della Lombardia duecentesca: Cremona, Piacenza, Pavia, Vercelli, Milano, Brescia, Alessandria e Tortona. È stato possibile analizzare il sistema di governo messo in atto dal marchese attraverso la schedatura prosopografica dei podestà inviati dal Pelavicino nei vari centri da lui controllati: da una parte il profilo sociale e l’appartenenza politica dei rettori mostrano quali furono le famiglie e i gruppi che lo appoggiarono nei diversi centri, dall’altra le provenienze geografiche e lo studio della circolazione degli ufficiali offrono un quadro interpretativo di come il Pelavicino amministrò una così vasta compagine territoriale. Pertanto, lo studio dei podestà pelaviciniani ha fatto emergere i diversi modi con cui il marchese si rapportò con le città, evidenziando le specificità del dominio e consentendo una visione della signoria attenta ad ogni diversa realtà cittadina ma allo stesso tempo capace di tenere conto della dimensione sovra locale del dominio.Between 1250 and 1266 the marquis Oberto Pelavicino became lord of some of the main cities in Lombardy of the thirteenth-century, after holding the title of imperial Vicar under the reign of Federico II and Corrado IV: Cremona, Piacenza, Pavia, Vercelli, Milano, Brescia, Alessandria e Tortona. It has been possible to analyse the government's system that the marquis put into place through the prosopographic cataloguing/filing of all the podestà that Pelavicino had sent in the different towns under his control. On one hand the rectores social profile and political membership show how families and groups supported him in the different centres, on the other one, the officers' geographical origin and the study on their circulation offer an interpretative framework of how Pelavicino administered his dominio. Therefore, the study of the Palavicinian mayors has pointed out the different ways through which the marquis relied to the cities, highlighting the domain’s specificity and allowing a view on the lordship that is attentive to every different city’s reality, but in a prospective that is able to take into account the domain’s over-local dimension at the same time.
LE SIGNORIE DI OBERTO PELAVICINO (1249-1266)
Get PDFThe aim of the project is to investigate Oberto Pelavicino’s lordship over some italian city-states in the second half of the 13th Century. Between 1249 and 1266 he exerted his power over Cremona, Piacenza, Pavia, Vercelli, Milan, Brescia, Alessandria and Tortona (but his dominion can be recognized also in the cities of Asti, Parma, Pontremoli and Reggio).
A debate about the dominion of the city was recently brought to the center of the affairs of the communalistic historiography, despite facing a critical afterthought of the relationships between city-state and lordship.
On the one hand my purpose is the investigation of the reasons and the ways through which Oberto Pelavicino ruled over such a wide territorial structure. On the other hand I analyze the reasons that led different cities to bow to him.
Unfortunately, the municipal archives regarding this period and the cities ruled by Oberto don’t exist anymore. Therefore the research is based on the private acts and the documents of ecclesiastical institutions: among the Milan State Archive for what concerns Milan, Pavia, Cremona and Brescia; and on the maps and the papers of Archive of St. Antonio’s basilica and of Piacenza State Archive. Finally, we take advantage of other documents from the State Archives of Vercelli, Pavia, Brescia, Cremona and Alessandria.
As a consequence of the private nature of the majority of the available documentation, the identification of collaborators is the base for my work. The reconstruction of Pelavicino’s political entourage allows us to notice which families and social groups supported him. Therefore, this makes us understand if they were the same in every cities and how the pars marchionis concretely acted.
The analysis of the functionary “circuits” represents a useful key of investigation in order to inquire how Pelavicino ruled the city system he was controlling and this is why we are allowed to look at his lordship always being focused on the reality of each cities, and, at the same time, being able to keep in mind the dimension of the local dominion
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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