1,720,958 research outputs found
Procedimento di protezione da attacchi informatici al veicolo e corrispondente dispositivo
No full textViene descritto un procedimento di protezione da attacchi informatici in una rete di comunicazione CAN (Controller Area Network) (20) di un veicolo comprendente un bus CAN (10) e una pluralità di nodi (11) associati a
detto bus CAN (10) in rapporto di scambio di segnale e associati almeno in parte a unità di controllo di funzioni del veicolo, comprendente le operazioni di analizzare il contenuto di messaggi CAN (M) in transito fra nodi di detta pluralità di nodi (11) per identificare messaggi CAN non leciti (MF), bloccare (B1, B2) detti messaggi non leciti (MF), detta operazione di bloccare (B1, B2) comprendendo di rendere non validi (F1, F2) detti messaggi non leciti (MF) rispetto a una verifica di integrità eseguita da un
controllore CAN (13) di detti nodi (11), inserendo (F1) una sequenza di bit (NV) di corruzione riconosciuta come un errore da detto controllore CAN (13), ottenendo un messaggio corrotto (MF’). Secondo la soluzione qui
descritta è previsto di inserire (F1) detta sequenza di bit (NV) di corruzione in un campo di controllo integrità (S5), in particolare un campo CRC, del messaggio CAN non lecito (MF) a un tempo di bit (btj-5) il cui valore è tale da allineare temporalmente un campo separatore (ITM) del messaggio non lecito con un corrispondente campo separatore di un messaggio d’errore (EM) generato da un nodo della rete (20) che riceve detto messaggio non lecito (MF) comprendente detta sequenza di corruzione (NV). Al fine di
garantire l’allineamento dei campi separatore (ITM) del messaggio non lecito (MF) e il messaggio d’errore (EM), la soluzione qui descritta prevede anche un’operazione di oscuramento (F2) atta a mascherare l’invio del/dei
messaggio/i di errore (EM) e ad emulare la corretta ricezione (OR) del/dei messaggio/i non lecito/i. (Figura 6
Method for protecting a vehicle from network attacks and corresponding device
No full textTo protect a vehicle CAN communication network from cyber attacks, the network including a controller area network (CAN) bus and a plurality of nodes that relate to the CAN bus in a signal exchange relationship and at least partially relate to a unit for controlling a vehicle function.SOLUTION: A method includes the steps of: analyzing contents of a CAN message being transmitted between nodes among a plurality of nodes in order to identify an unauthorized CAN message (MF); and blocking the MF. The step of blocking disables the MF for an integrity check performed by a CAN controller of a node by inserting a corrupted bit sequence (NV) recognized as an error by the CAN controller to obtain a corrupted message (MF'
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
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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