1,721,021 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
Scheduling and Optimization for Resource Management in Novel Applications in Communication and Energy Systems
No full textRessourcen-Management ist der Prozess zur Bestimmung der besten Verwendung von begrenzten Ressourcen.
Typischerweise kann nicht der gesamte Bedarf an Ressourcen gedeckt werden und das Bestimmen der effizientesten Verwendung ist herausfordernd.
Darüber hinaus sind viele Probleme in diesem Bereich dynamisch.
Das bedeutet, dass sich die Verwendung der Resourcen und der Zustand des Systems in der Zeit ändern kann.
Das zeitliche Planen der Verwendung von Ressourcen wird in der Literatur als Scheduling bezeichnet.
Das Berechnen von Schedules (engl. Ablaufpläne) ist oft schwierig und erfordert eine korrekte Modellierung des zugrundeliegenden Systems.
Das Ziel dieser Arbeit ist die Entwicklung und Evaluation von Planungsalgorithmen für neuartige Anwendungen in den Bereichen Echtzeitkommunikation, Multicast Protokolle, und Energiesysteme.
Im Bereich der Energiesysteme stellen wir einen Planungsalgorithmus zur Einsparung von Energiekosten in Produktionsprozessen vor, werten Vorhersagealgorithmen für Energiebedarfe in Wohnhäusern aus, und präsentieren ein Optimierungsverfahren mit dem der Eigenverbrauch von PV Energie durch Wärmepumpen optimiert werden kann.
Im Bereich Echtzeitkommunikation wurde der aktuelle Forschungsstand zu Planungsalgorithmen für den sogenannten Time-Aware Shaper (TAS) zusammengefasst.
Außerdem stellen wir die Ergebnisse einer quantitativen Vergleichsstudie zu mehreren Planungsalgorithmen für TAS vor.
Darüber hinaus präsentieren wir einen Planungsalgorithmus, der robuste Ablaufpläne für den Fall von nicht-de\-ter\-min\-is\-tisch\-em Verhalten berechnen kann.
Im Bereich von Multicast Protokollen stellen wir zuerst einen Algorithmus vor, der bnötigt wird, um Bit Indexed Explicit Replication (BIER) für große Netzwerke zu skalieren.
Außerdem führen wir Segment-Encoded Explicit Trees (SEET) ein.
Dabei handelt es sich um ein neuartiges Protokoll für zustandslose Multicast Kommunikation, das Tree Engineering unterstützt.
Die in dieser Arbeit vorgestellten Forschungsergebnisse wurden im Rahmen verschiedener Forschungsprojekte von der Deutschen Forschungsgemeinschaft (DFG) unter den Förderkennzeichen ME2727/1-2, dem Bundesministerium für Bildung und Forschung (BMBF) unter dem Förderkennzeichen 16KIS1161 (Verbundprojekt KITOS), und dem Bundesministerium für Wirtschaft und Energie unter Förderkennzeichen 16KN039521 (ZIM) gefördert.Resource management is a generic term for the process of determining the most beneficial way to employ some limited set of resources. Typically, not all demands for a set of resources can be fulfilled and determining their most efficient usage is challenging. To make matters worse, many problems are not static. Instead, the state of a system changes dynamically and depends on the usage of its resources in time. Planning the usage of resources in time is denoted as scheduling in the literature. Computing schedules is hard and requires the accurate modelling of the underlying system.
The objective of this work is the development and evaluation of scheduling algorithms for novel applications in power systems, real-time communication, and multicast protocols. We contribute various research works about scheduling in power systems. We propose a scheduling algorithm to save energy costs in production processes, evaluate forecasting methods for domestic demands, and present an optimization algorithm to maximize self-consumption of roof-top PV energy with a heat pump. In the domain of real-time communication, we review the state of the art of scheduling algorithms for the so-called Time-Aware Shaper (TAS). We report results of a quantitative study comparing various scheduling algorithms for TAS. Additionally, we propose a scheduling algorithm that computes schedules robust against some sources of non-determinism. In the field of multicast protocols, we first contribute a partitioning algorithm needed to scale Bit Indexed Explicit Replication (BIER) to large networks. Then, we present Segment-Encoded Explicit Trees (SEET), a novel multicast protocol that allows tree engineering.
The research presented in this thesis has been funded by different research projects by the Deutsche Forschungsgemeinschaft (DFG) under grant ME2727/1-2, the German Federal Ministry of Education and Research (BMBF) under support code 16KIS1161 (Collaborative Project KITOS), and the German Federal Ministry for Economic Affairs and Energy 16KN039521 (ZIM)
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
A Virtual Testbed Orchestration (VITO) System for Education, Performance Evaluation, and Network Function Virtualization
Full text linkIn recent years,
the computer science world has seen a big shift from dedicated, highly specialised hardware to virtualised appliances that are cheaper and more flexible
In the field of networking, those approaches also have great potential.
This work will focus on leveraging virtualisation and software-defined networking for academic and data center-related purposes.
We present a system to simplify the education of students and a system to allow testing and evaluation of new networking protocols in a virtualised environment without the need for real hardware apart from a virtualisation platform.
For data center operators, we present a system to leverage network virtualisation without the need for expensive appliances for network functions.
All technologies in this work are not only scoped for networking specialists but are also usable by engineers with only general knowledge of the networking field.
The procedures and technologies explained in this work lead to scientific work that has been published at different conferences
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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