1,721,022 research outputs found
Bulwark: Holistic and verified security monitoring of web protocols
No full textModern web applications often rely on third-party services to provide their functionality to users. The secure integration of these services is a non-trivial task, as shown by the large number of attacks against Single Sign On and Cashier-as-a-Service protocols. In this paper we present Bulwark, a new automatic tool which generates formally verified security monitors from applied pi-calculus specifications of web protocols. The security monitors generated by Bulwark offer holistic protection, since they can be readily deployed both at the client side and at the server side, thus ensuring full visibility of the attack surface against web protocols. We evaluate the effectiveness of Bulwark by testing it against a pool of vulnerable web applications that use the OAuth 2.0 protocol or integrate the PayPal payment system
Le Terme suburbane a Pompei: un laboratorio interdisciplinare di sperimentazione progettuale
No full textIl presente contributo intende illustrare gli esiti di una ricerca applicata
condotta da un gruppo di docenti e giovani ricercatori del Dipartimento
di Architettura dell’Università di Napoli Federico II, coordinato dalla prof.
Renata Picone, finalizzata al restauro e all’accessibilità delle Terme suburbane
dell’antica Pompei1.
Il sito archeologico pompeiano è unico nel suo genere in quanto si presenta
tutt’oggi come una città “integra” nella sua conformazione urbana
e densa di architetture di valore. Rendere fruibile un bene culturale che
è una città, è un’operazione progettuale complessa, che necessita della
sinergia di diversi saperi e orientamenti disciplinari; richiede un atteggiamento
di analisi e ascolto in grado di associare ad azioni di salvaguardia
interventi volti ad una rilettura di valori e di significati sommersi.
Nel caso specifico, il progetto della nuova accessibilità alle Terme Suburbane
di Pompei, tassello del più ampio programma di valorizzazione
dell’Insula Occidentalis, ha rappresentato l’occasione per sperimentare
una metodologia di intervento applicabile ai manufatti di altrettanta
importanza, nella quale discipline diverse come il Restauro, la Progettazione
architettonica e urbana, l’Allestimento, l’Illuminotecnica e la Comunicazione
hanno contribuito, in una costante interrelazione dialettica,
a definire una proposta di intervento, rispettosa della storia, dell’identità
e soprattutto della fragile materia antica del manufatto e di tutte le sue
successive stratificazioni.
La ricerca si è posta l’obiettivo non solo di risolvere i problemi fruitivi
da un punto di vista tecnico, ma di catturare il visitatore e renderlo protagonista
di un’opera nata con una vocazione pubblica, nel rispetto di
ciò che di essa si è conservato. Lo spazio, anticamente animato da un
numero cospicuo di persone, viene inteso nuovamente come un luogo
di condivisione e conoscenza in grado di coinvolgere le emozioni e le
memorie di un pubblico quanto più possibile ampio
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
Sulla strada degli Jazzi. Riuso e valorizzazione di un'architettura Cilentana
No full textThe landscape of Cilento, located in southern Campania, is strongly characterized by the presence of rural architecture, which arose due to land use requirements and which can be traced back to defined types of plant that are functional to the evolution of production methods and to the needs of accessibility, defense or connection. Among these architectures a typology not yet investigated is that of the jazzi, born as recovery for shepherds and flock during the transhumance. Due to their positioning along the main pastoral routes (tratturi), these artifacts become elements that over time characterize the Cilento agricultural and mountain landscape.
The proposed essay investigates the jazzi located in the area between Vibonati and Tortorella, cataloging them, studying their constructive features and state of preservation and proposing possible restoration strategies that aim to preserve both material and immaterial values of the structure, in order to insert them into a unitary path of fruition that enhances its potential
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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