1,720,966 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
Indoor camera relocalization under changing conditions using attention-based neural networks
No full textTo perform tasks autonomously a robot oftentimes needs to be able to localize itself.
One specific form of localization is relocalization which describes the process of estimating the position only based on the current observation and some kind of map of the environment.
This is necessary if the robot has lost track of its current position or is placed in a new scene.
In this thesis we concentrate on visual relocalization.
Hereby, the observation of the robot is given in the form of an image that we call query image and also the scene is represented as a collection of images, called reference images, with their corresponding absolute pose.
Based on the collection of reference images, the absolute pose of the query image has to be estimated.
A big variety of approaches has been proposed to solve visual relocalization, but most of them are scene-specific.
This means they need a detailed 3D model of the environment or in the case of learning-based approaches need to be retrained for each new scene.
For big environments or emergency operations in unseen scenes this can be too expensive or simply not possible.
Therefore, we want to concentrate on scene-agnostic relocalization in this thesis.
Deep Learning has been successfully applied to many different fields and can also be used for visual relocalization.
Unfortunately, the generalization capability of such methods to unseen scenes is still outperformed by non-learning based approaches.
In this thesis we show that one of the main reasons for the bad accuracy on unseen scenes is the too-small pose regression part of existing pose estimation networks.
By extending this regression part, our novel network architecture called \textit{ExReNet} successfully generalizes from synthetic training data to real-world data.
To be able to compare our model to existing approaches, we evaluate our model on the 7-Scenes dataset.
Thereby, we outperform all previous deep learning-based approaches that were trained on unrelated data and most of the approaches that were specifically trained on the 7-Scenes dataset.
Furthermore, we show that the pose estimation can be further improved by taking translation scale and uncertainty into account.
Hereby, we propose a novel approach to model uncertainty via a variational autoencoder.
Next to 7-Scenes, we also use a Replica-based dataset to evaluate our approach in a more realistic scenario where only a few reference images are available.
We show that under such much more realistic conditions our learning-based approach can outperform the classical non-learning-based methods and by that also the existing learning-based methods
German and Austrian gambling law in comparison with special emphasis on gambling machines
No full textDie vorliegende Arbeit befasst sich mit den unterschiedlichen Problemen des deutschen sowie des österreichischen Glücksspielrechts. Die Thematik des Glücksspiels hat aufgrund der steigenden Zahlen von Glücksspielsüchtigen in den letzten Jahren immer mehr an Bedeutung gewonnen.Einer Darstellung der glücksspielrechtlichen Ausgestaltungen in Deutschland und Österreich folgt eine kritische Betrachung mit einem anschließenden Vergleich der beiden Rechtsordnungen auf diesem Gebiet. Der diesbezügliche Schwerpunkt liegt auf einer speziellen Form des Glücksspiels, jener mit Glücksspielautomaten. Es werden zunächst die europarechtlichen Voraussetzungen im Bereich des Glücksspiels dargestellt sowie die einschlägige Judikatur auf europäischer Ebene wiedergegeben und analysiert. In weiterer Folge wird auf etwaige Probleme hinsichtlich der Konformität nationaler glücksspielrechtlicher Vorgaben mit dem Europarecht näher eingegangen.Anschließend werden die Kompetenzgrundlagen in Deutschland und Österreich erläutert um die Basis für die folgende verfassungsrechtliche Beurteilung der Vorschriften hinsichtlich des Glücksspielrechts in den beiden Staaten vornehmen zu können. Nach näheren Ausführungen zu den einzelnen glücksspielrechtlichen Begriffen, die das Verständnis erleichten sollen, werden die Ziele der glücksspielrechtlichen Normen klargestellt, um die Intention hinter den rechtlichen Vorgaben deutlich zu machen. Anschließend werden die Regelungssysteme Deutschlands und Österreichs ausführlich dargestellt und kritisch betrachtet, wobei besonderes Augenmerk auf den Spieler- und Jugendschutz gelegt wird. Ein abschließendes Fazit der glücksspielrechtlichen Regelungen der beiden Staaten bildet das Ende der Arbeit.The present work deals with the different problems of the German and the Austrian gambling law. The issue of gambling is due to the increasing number of gambling addicts in recent years become highly important. A representation of legal gambling rules in Germany and Austria follows a critical look at each of them and a subsequent comparison of the two legal systems in this area. The relevant focus is on a special form of gambling, those with gambling machines.First, the European legal requirements in the field of gambling will be represented and the relevant case law at European level will be reproduced and analyzed. Subsequently any issues regarding the conformity of national gambling legal requirements with European law will be discussed.Subsequently, the competence base in Germany and Austria will be explained to build the basis for making the following assessment of the constitutional provisions regarding the gambling legislation in the two states.After further discussion of the various gambling legal concepts to facilitate understanding, the objectives of the gambling regulatory standards wil be represented to make the intentions behind the legal requirements significantly. Then, the legal gamling systems of Germany and Austria will be presented and considered critical, with particular attention being paid to the player and youth protection. A final conclusion of the gambling regulations of the two states is the end of the work.vorgelegt von: Dominik WinkelbauerAbweichender Titel laut Übersetzung der Verfasserin/des VerfassersGraz, Univ., Dipl.-Arb., 201
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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