1,720,958 research outputs found
Resilienza di sistemi Cyber-fisici: valutazione sperimentale di misure quantitative nel contesto della sicurezza informatica
No full textIn attesa di ABSTRAC
Proposta di una procedura automatizzata per guidare le P.A. nell’efficientamento energetico, economico e ambientale delle strutture esistenti e operanti sul territorio
No full textViene presentato il risultato dello studio condotto presso l’Università degli Studi di Genova per conto del Comune di Cogorno (Ge) in tema di riqualificazione energetica, ambientale ed economica delle strutture esistenti sul territorio dei comuni italiani di medie e piccole dimensioni. Si propone un simulatore in grado di offrire un supporto decisionale agli amministratori locali nelle scelte di riqualificazione delle strutture esistenti senza aggravio di costi a priori per lo studio preventivo di fattibilità.
A smart tool to guide P.A.s’ local authorities towards energetic, economic and environmental optimization of existing buildings
The paper presents the study conducted by the University of Genoa with the City of Cogorno (Ge) in terms of upgrading the energy, environmental and economic efficiency of existing buildings present in Italian municipalities of medium and small size. An easily usable simulator can provide a quick and accurate decision support for local administrators
Concrete vs. Symbolic Simulation To Assess Cyber-Resilience Of Control Systems
No full textState-of-the-art industrial control systems are complex implements featuring different spatial and temporal scales among components, multiple and distinct behavioral modal-ities, context-dependent and human-in-the-loop interaction patterns. Most control systems offer entry-points for mali-cious users to disrupt their functionality severely, which is unacceptable when they are part of the national critical in-frastructure. Cyber-resilience, i.e., the ability of a system to sustain — possibly malicious — alterations while main-taining an acceptable functionality, is recognized as one of the keys to understand how much damage can be brought to a system and its surrounding environment in case of a suc-cessful cyber-attack. In this paper we compare methods to assess resilience considering both concrete simulation and symbolic simulation. Our ultimate goal is to provide main-tainers and other stakeholders with a dynamic and quanti-tative measure of cyber-resilience. Here we present some results on a case study related to waste-water treatment, in order to provide initial evidence that concrete and symbolic simulation can be used in a complementary way to analyze the security of industrial control systems
Modeling and Simulation as Support for Development of Human Health Space Exploration Projects
No full textThe capability of the space environment to
alter the cells behaviour seems to be an opportunity for
future researches in biology, for diseases such as cancer.
This paper highlights the importance of Interoperable
Simulation Systems as precious instruments to support and
improve space exploration projects devoted to biological
researches. The research investigates the potential of
Modeling & Simulation to reproduce a virtual environment
to support Nano-satellite experiments in cooperation among
the different stakeholders involved in a space mission, such
as scientist, engineers and biologists
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
- …
