1,721,000 research outputs found
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
INNOVATIONWAY®: a novel methodology for radical innovation
No full textCreative methods (e.g. brainstorming or lateral thinking) for supporting the design process boost the ability to generate new ideas but fail to filter them according to their content and quality, while structured methodologies (TRIZ) give rigorousness to the inventive process, with shortcomings in terms of time and cost. To overcome the limits of both approaches, a new methodology, labelled InnovationWay®, have been built combining a research around Functional Analysis carried out at the School of Engineering of the University of Pisa, with the experience in the design and implementation of new processes of Consortium Quinn. The InnovationWay® methodology has now been tested in several settings giving high quality results astonishingly rapid and massive
Analisi e Verifica della Posa in Opera della Segnaletica Orizzontale di una Strada con Strumenti di Rilievo a Basso Costo
No full textLa manutenzione ordinaria e straordinaria delle strade è la principale prerogativa degli enti e le società concessionarie che gestiscono il patrimonio stradale, anche al fine di garantire un adeguato grado di sicurezza agli automobilisti. Fa parte di queste attività il ripristino della segnaletica orizzontale che nelle strade in esercizio è progressivamente danneggiata dall'azione del traffico e degli agenti atmosferici. Nel corso del tempo, tuttavia, con successivi interventi di posa le linee si allontanano progressivamente dalla loro posizione iniziale al punto da presentare una geometria della strada diversa da quella in origine progettata. Si deve tenere presente che, oltre a consentire una gestione ordinata delle correnti veicolari nella carreggiata, la segnaletica orizzontale ha la funzione di guida ottica per il guidatore, il quale in base ad essa imposta la traiettoria del veicolo. In altre parole, la segnaletica stradale orizzontale trasmette le informazioni di base grazie alle quali il conducente esplica l'attività di guida e controllo del veicolo. Attività altrettanto importante è costituita dal rilievo della geometria della pavimentazione per fini diversi che spaziano dall'accatastamento alla formazione dell'as built dell'opera stradale. La Geomatica viene incontro a queste esigenze di verifica e analisi, oggi anche con strumenti di semplice utilizzo e di basso costo, che possono essere installati su veicoli ordinari. Un possibile strumento, proposto nel contributo e realizzato presso il Politecnico di Torino, è costituito da un Mobile Mapping System (MMS) a basso costo, composto da una webcam e da un sistema integrato GPS/IMU (x-Sens -MTi-G). Il sistema consente di acquisire la traiettoria tridimensionale e le immagini (circa a 10 fps con immagini di 960x720 pixel) che, grazie al sensore GPS/IMU, possono essere georiferite con una precisione sufficiente agli scopi prefissati. Da esse, è possibile estrarre alcune informazioni necessarie per lo studio del tracciato, mediante una procedura proposta e implementata dagli autori in ambiente MATLAB che utilizza algoritmi di edge detection, feature extraction (il filtro di Canny, la trasformata di Hough ecc.) e tecniche robuste per l'individuazione della segnaletica orizzontale e dei limiti della sede stradale: si ricava così l'asse medio della carreggiata e le dimensioni trasversali di corsie e banchine che devono essere confrontati eventualmente con l'asse di progetto. Il sistema è stato provato su un tratto della SR.23 del Sestriere, di cui si disponevano i progetti esecutivi. Nel contributo è descritto il sistema e i primi risultati ottenuti. The maintenance of roads is the main goal of Public Authorities and Private Companies Road manager in order to ensure adequate levels of safety. The control and the re-establishment of road markings are part of these activities, because the road markings are damaged by the traffic and environmental agents. The verification of the exact execution of the project of the road (including the road marking), in terms of radius of curvature and roundabouts, etc. is also an important goal. The Geomatics could satisfy the requirement of testing and analysis with an easy and low cost tool, which allows to be used in different vehicles. The proposed intrument has been built at the Politecnico di Torino and it is a low-cost mobile mapping system, composed by a webcam and an integrated GPS / IMU (x-Sens-MTi-G). The system is able to acquire trajectories (position and attitudes) and images with a variable rate (i.e. 10 fps with 960x720 images), by means an integrated sensor GPS/ IMU which allows to georeferenced the images with an accuracy sufficient for the intended purposes. An image analysis procedure has been carried out in MATLAB@ language in order to extract some geometrical elements (i.e. central or lateral marking lines) with purpose to estimate the centreline position. This axis has been compared to the planned axis. The system was tested on a stretch of road SR23 Sestriere, where the executive project was available. The contribution will describe the system and the first results obtaine
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