1,746,851 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
Southern Pacific (SP) 2400
No full textA photograph print showing the Southern Pacific (SP) 2400, 4-6-2 (BLW), Sacramento, CA
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
Aruba 2400
Get PDFEn la actualidad las tecnologías de redes de ordenadores inalámbricas están cobran-do cada vez más importancia, siendo su principal exponente la tecnología Wi-Fi especifi-cada en el estándar IEEE 802.11. Una de las posibles funcionalidades añadidas de dichas tecnologías es la posibilidad de realizar la localización espacial de dispositivos conectados a las redes inalámbricas mediante sistemas de triangulación de la señal. Existen diferentes sistemas de localización basados en diferentes tecnologías inalámbricas de redes de ordenadores, siendo su precisión, coste y autonomía variable entre cada una de las opciones. El sistema Aruba 2400 ofrece la posibilidad de realizar la localización espacial de dispositivos móviles mediante el despliegue de una red de ordenadores inalámbrica basa-da en tecnología Wi-Fi. Su principal ventaja reside en la reutilización de la misma red tanto para la localización como para la conexión de los ordenadores entre sí y con Internet. El presente documento muestra un estudio del estado actual de las tecnologías inalámbricas así como de la utilización del sistema Aruba 2400 para la localización espa-cial de dispositivos móviles.Currently wireless network technologies are becoming more and more important, and Wi-Fi technology is the most important of those. An additional possible function of this type of technologies is the location of devices connected to the network. There are different types of location systems based on different wireless technolo-gies, and the price, precision, and battery life vary accordingly. This document will show a study of the current state of wireless technologies, as well as a specific study of the localization system Aruba 2400.De nos jours les procédés des réseaux informatiques sans fil gagnent de plus en plus d’importance, notamment la technologie Wi-Fi, que l’on retrouve au standard IEEE 802.11. Une des possibles fonctions ajoutées à ces technologies est la possibilité de réaliser la localisation spatiale de dispositifs connectés aux réseaux sans fil à travers un système de triangulation du signal.Il existe divers systèmes de localisation basés sur différentes technologies de ré-seaux sans fil, où la précision, le coût et l’autonomie varient dans chacun des cas. Le système Aruba 2400 offre la possibilité de réaliser une localisation spatiale de dispositifs mobiles gr}ce { la mise en place d’un réseau d’ordinateurs sans fil basé sur la technologie Wi-Fi. Le principal avantage est de pouvoir utiliser le même réseau aussi bien pour la localisation que pour la connexion des ordinateurs entre eux et à Internet. Ce document montre un étude de l’état actuel des technologies sans fil, tout comme l’utilisation du système Aruba 2400 pour la localisation spatiale des dispositifs mobiles.Ingeniería en Informátic
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