1,720,987 research outputs found
Towards Making Fault Injection on Abstract Models a More Accurate Tool for Predicting RT-Level Effects
No full textFault injection and fault simulation are a typical approach to analyze the effect of a fault on a hardware/software system. Often fault injection is done on abstract models of the system either to retrieve early results when no implementation is available, yet, or to speed-up the runtime intensive fault simulation on detailed models. The simulation results from the abstract model are typically inaccurate because details of the concrete hardware are missing. Here, we propose an approach to relate faults from an abstract untimed algorithmic model to their counterparts in the concrete register transfer models. This allows to understand which faults are covered on the concrete model and to speed up the fault simulation process. We use a mapping between both models' variables and mapped timing states for fault injection to corresponding variables on both models. After fault simulations the results are compared to check, whether a given fault produces the same behavior on both models. The results show that an injected fault to corresponding variables leads to the same behavior of both models for a large share of faults
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
Informatik für Ingenieure an der Technischen Universität Hamburg
No full textDiese Veröffentlichung stellt die Grundlagenveranstaltung Informatik für Ingenieure der Technischen Universität Hamburg vor, die für mehrere Ingenieurstudiengänge als Einführung in die Informatik und das Programmieren dient. Dabei ist es wichtig, in welcher Tiefe und Zusammenstel- lung die einzelnen Themeninhalte vermittelt werden. Die Veranstaltung befindet sich – wie viele Hilfsveranstaltungen– im Zielkonflikt zwischen Vermittlung zum tiefgehenden Verständnis weniger Inhalte und breit angelegtem Überblick vieler Inhalte. Somit gibt es zwei Ziele: (1) Studierende sollen mit Informatik-Fachbegriffen umgehen können, (2) Studierende sollen grundlegende Program- mierkenntnisse erwerben. Der finale Leistungsnachweis mit theoretischen und praktischen Inhalten wird mithilfe einer Online-Klausur mit automatisierter Auswertung absolviert. Semesterbegleitende Tutorien und Zwischenprüfung bereiten die Studierenden auf die abschließende Klausur vor. Durch die Herausforderungen für die Veranstaltung ist diese in einem ständigen Wandel. Dieses Papier gibt einen Überblick über die Konzeption der Veranstaltung, die in der Diversität der beteiligten Studiengänge begründeten Herausforderungen und stellt eine automatisierte nicht-klausurspezifische Klausurauswertung zur Verfügung
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
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