1,720,999 research outputs found
The Control of Non-Sampling Errors on Linked Data: an Application on Population Census
No full textError management represents one of the main aspects of quality control in the statistical data production process. For more than ten years quality improvement has been a strategic objective for the Italian Statistical System (SISTAN). Evaluation and quality control still cannot be considered the final elements of the production process but strictly belong to the survey design and hence the planning phase. Record-linkage represents one of the elements that could best assure advantages from the informative patrimony accumulated by data producers, both in the way of a greater supply of joint statistical information on the same population, in the building of statistical informative systems or integrated (or federated) archives, and in the way of the data quality improvement of a survey through information obtained from other surveys or administrative archives. However, counter to the potential advantages offered, it is necessary to take into account the complexity and the further uncertainty that record linkage can also introduce. With this aim in mind, the present paper will attempt to verify how it is possible to discern between response errors and under-coverage errors in the Italian Population Census of 2001, through a post enumeration survey and in so doing, apply a record linkage procedure that could reduce these errors but give rise to other sources of error. These different sources of error are defined in in the paper, as well as their interaction with linkage errors. It is also presented an application regarding the estimation of some characteristics of the foreign resident population
Il nuovo «canone di lettura» di Luisa Bergalli: «I Componimenti poetici delle più illustri Rimatrici d’ogni secolo»
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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
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