1,720,961 research outputs found
The Impact of Taxes on Corporate Financial Decisione: an Empirical Analysis on Euro Area Data
No full textLa tesi si focalizza sull'analisi dell'impatto della tassazione sulle scelte finanziarie delle imprese. nella prima parte dal lavoro viene presentata una review della letteratura teorica di riferimento. Successivamente vengono effettuate due diverse analisi empiriche finalizzate a spiegare quali siano le determinanti della politica di indebitamento e dei dividendi di imprese quotate dell'Area Euro e come esse si siano modificate dopo l'introduzione della moneta unica.This research is implemented to investigate on the impact of taxation on corporate financial decisions. In particular two main financial policies are considered: the capital structure policy and the payout policy. This corporate dimensions are investigated making use of empirical approaches on Euro-firms data to investigate also on the impact of the introduction of the Euro on the same issues
Metrics for Identifying Bias in Datasets
Full text linkNowadays automated decision-making systems are pervasively used and more often, they are used for taking important
decisions in sensitive areas such as the granting of a bank overdraft, the susceptibility of an individual to a virus infection,
or even the likelihood of repeating a crime. The widespread use of these systems raises a growing ethical concern about
the risk of a potential discriminatory impact. In particular, machine-learning systems trained on unbalanced data could rise
to systematic discriminations in the real world. One of the most important challenges is to determine metrics capable of
detecting when an unbalanced training dataset may lead to discriminatory behaviour of the model built on it. In this paper,
we propose an approach based on the notion of data completeness using two different metrics: one based on the combinations
of the values of the dataset, which will be our benchmark, and the second using frame theory, widely used among others for
quality measures of control systems. It is important to remark that the use of metrics cannot be a substitute for a broader
design that must take into account the columns that could lead to the presence of bias in the data. The line of research does
not end with these activities but aims to continue the path towards a standardised register of measures
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
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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