1,720,956 research outputs found
An Architecture and Prototype for Monitoring Distributed Simulations of Distributed Systems
No full text
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
Accesso e Controllo Efficiente di Sistemi Software Complessi tramite GraphQL
Full text linkAll’interno dei sistemi software moderni è di cruciale importanza la possibilità di monitorare e controllare un’intero sistema nella maniera più efficiente possibile. I principali meccanismi di controllo e interrogazione dei sistemi possono comprendere il design e l’implementazione di Application Programming Interface (API), le quali costituiscono un solido punto di appoggio per le comunicazioni tra le diverse componenti software di un sistema. All’interno di questo elaborato, viene presentata la realizzazione di un servizio di API all’interno di Alchemist, un simulatore stocastico realizzato all’interno della Java Virtual Machine (JVM). Il servizio di API mira ad esporre verso l’esterno un insieme di informazioni inerenti una simulazione all’interno di Alchemist, e allo stesso tempo fornisce meccanismi di controllo della stessa, mantenendo un’implementazione che non sia dipendente dalla piattaforma utilizzata mediante l’uso di Kotlin Mutliplatform. All’interno di questo documento, verranno illustrate le strategie di design e architetturali per la realizzazione di un tale sistema attraverso il paradigma GraphQL, il quale fornisce un Query Language in grado di stabilire con esattezza la struttura dei dati che un client deve ricevere dal sistema di API. Sono quindi approfondite le motivazioni dietro la scelta di tale paradigma, e vengono definite le operazioni di massima che il sistema deve fornire. Successivamente verrano coperte estensivamente le sfide implementative e di compatibilità causate dalla natura complessa di Alchemist, e la rigida e semplice struttura di uno schema GraphQL. Infine, sono illustrare le future estensioni possibili del sistema costruito, illustrandone scopi e benefici che possono apportare al sistema, richiedendo pochi o nessun cambiamento all’architettura proposta
Distributed monitoring and control with dynamic offloading: the case of the Alchemist Simulator
No full textThe ability to monitor and steer the behavior of complex distributed systems is an increasingly hot research topic. An innovative architecture that facilitates the dynamic redistribution of computational load across multiple devices for monitoring systems is introduced in this thesis. The proposed architecture has been designed and evaluated within the context of Alchemist, a stochastic simulator that runs on the Java Virtual Machine (JVM).
The primary focus of this project pertains to the hosting of simulations on a server machine and the challenge of managing a potentially large number of clients who wish to visualize and interact with it. The proposed architecture focuses on two strategies that can be dynamically managed based on the available resources. In the first approach, the server is responsible of rendering the simulation and transmitting the visual representation to the connecting client. In the second approach, the server only supplies the raw data to the client, which then executes the rendering operation on its local machine.
In the flow of this thesis, some background about the Alchemist Simulator is given. Following an extensive analysis phase, Kotlin Multiplatform was selected as the primary framework. This technology greatly facilitated the development of a multiplatform architecture which is flexible and robust. Lots of implementative details are given to the reader, with a focus on how the Alchemist Simulator is able to interact with the proposed architecture. It is also explained in details how it was possible to reach a good level of interoperability between two very different ecosystems, addressing the considerable problems of serialization. Finally, since this project is meant to be a proof of concept, a wide range of future works are presented, explaining how it would be possible to enrich the system with little to no changes to the proposed architecture
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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