1,721,034 research outputs found
Wie gut ist unsere kritische Infrastruktur geschützt?:Interview mit Prof. Dr. Anne Remke
No full textZwei durchtrennte Kabel haben vor einigen Wochen den gesamten Bahnverkehr in Norddeutschland lahmgelegt und gleichzeitig ein lange vernachlässigtes Thema in den Fokus von Bürgern und Politik gerückt: die Sicherheit unserer kritischen Infrastruktur. Prof. Dr. Anne Remke leitet an der WWU die Arbeitsgruppe für Sicherheitskritische Systeme am Institut für Informatik und fordert im Podcast ein schnelles und klares Umdenken der Politik: "Wir benötigen Steuererleichterungen für private Unternehmen, die sich um zusätzliche Sicherheitsstrukturen bemühen, mehr Pflichten für Betreiber und zusätzliches Geld für die Forschung in diesem Bereich." Im Gespräch definiert sie zudem den Begriff Sicherheit, erklärt, welche Bereiche besonders vulnerabel sind und warum die Forschung zu diesem Thema eine Herausforderung ist
Wie gut ist unsere kritische Infrastruktur geschützt?:Interview mit Prof. Dr. Anne Remke
No full textZwei durchtrennte Kabel haben vor einigen Wochen den gesamten Bahnverkehr in Norddeutschland lahmgelegt und gleichzeitig ein lange vernachlässigtes Thema in den Fokus von Bürgern und Politik gerückt: die Sicherheit unserer kritischen Infrastruktur. Prof. Dr. Anne Remke leitet an der WWU die Arbeitsgruppe für Sicherheitskritische Systeme am Institut für Informatik und fordert im Podcast ein schnelles und klares Umdenken der Politik: "Wir benötigen Steuererleichterungen für private Unternehmen, die sich um zusätzliche Sicherheitsstrukturen bemühen, mehr Pflichten für Betreiber und zusätzliches Geld für die Forschung in diesem Bereich." Im Gespräch definiert sie zudem den Begriff Sicherheit, erklärt, welche Bereiche besonders vulnerabel sind und warum die Forschung zu diesem Thema eine Herausforderung ist
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
StochNetV2: A Tool for Automated Deep Abstractions for Stochastic Reaction Networks
Full text linkWe present a toolbox for stochastic simulations with CRN models and their (automated) deep abstractions: a mixture density deep neural network trained on time-series data produced by the CRN. The optimal neural network architecture is learnt along with learning the transition kernel of the abstract process. Automated search of the architecture makes the method applicable directly to any given CRN, which is time-saving for deep learning experts and crucial for non-specialists. The tool was primarily designed to efficiently reproduce simulation traces of given complex stochastic reaction networks arising in systems biology research, possibly with multi-modal emergent phenotypes. It is at the same time applicable to any other application domain, where time-series measurements of a Markovian stochastic process are available by experiment or synthesised with simulation (e.g. are obtained from a rule-based description of the CRN)
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
Betere beveiliging Scada-systemen vitaal voor Nederlandse infrastructuren
Full text linkNutsvoorzieningen, zoals water-, gas- en stroomfaciliteiten zijn dikwijls gebaseerd op Supervisory Control And Data Acquisition (Scada). Steeds vaker wordt dit soort systemen met de publieke netwerken verbonden en gebaseerd op Windows. Dat maakt ze gevoelig voor dezelfde dreigingen als op het publieke internet. Boudewijn Haverkort, Anne Remke en Pieter Hartel gaan in op deze gevaren en de maatregelen die we kunnen nemen
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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