1,721,033 research outputs found
On-line testing of permanent radiation effects in reconfigurable systems
No full textCassano L, Cozzi D, Korf S, Hagemeyer J, Porrmann M, Sterpone L. On-Line Testing of Permanent Radiation Effects in Reconfigurable Systems. In: Design, Automation & Test in Europe Conference & Exhibition (DATE), 2013. Piscataway, NJ: IEEE; 2013: 717-720
Built-in software obfuscation for protecting microprocessors against Hardware Trojan Horses
No full textInquadramento giuridico dei profili di responsabilità in tema di veicoli a guida autonoma
No full textLa mobilità, nell’ultimo secolo, nel settore del trasporto su strada, è stata interessata da numerosi ed importanti progressi. L’Autore esamina le peculiarità della responsabilità, civile e penale, per i veicoli a guida autonoma. Il tema viene affrontato a livello europeo da vari strumenti quali la direttiva sulla responsabilità per danno da prodotti difettosi (dir. 85/374/Cee del Consiglio) nonchè dai diversi regimi di responsabilità individuati nei singoli Stati membri (ad es. diritto civile, diritto penale, legislazione in materia di circolazione stradale). La causa effettiva del danno e dell’incidente è decisiva per l’attribuzione della responsabilità ed è particolarmente importante individuare, attraverso l’ausilio di registratori di dati chi, effettivamente, conduce il veicolo: il sistema automatizzato o il conducente.Over the last century, road transport mobility has made numerous significant progress. The Author reviews the peculiarity of civil and criminal liability for driverless cars. The issue is addressed by various European instruments such as Council Directive of 25 July 1985 on the approximation of the laws, regulations and administrative provisions of the Member States concerning liability for defective products 85/374/EEC, as well as by various laws governing liability in individual Member States (e.g. civil law, criminal law, legislation on road traffic). The actual cause of damages and of the accident is decisive for the allocation of liability and it is particularly important to identify, with the aid of data recorders, who actually was driving the vehicle: automated system or the driver
Selective Hardening of CNNs based on Layer Vulnerability Estimation
Full text linkThere is an increasing interest in employing Convolutional Neural Networks (CNNs) in safety-critical application fields. In such scenarios, it is vital to ensure that the application fulfills the reliability requirements expressed by customers and design standards. On the other hand, given the CNNs extremely high computational requirements, it is also paramount to achieve high performance. To meet both reliability and performance requirements, partial and selective replication of the layers of the CNN can be applied. In this paper, we identify the most critical layers of a CNN in terms of vulnerability to fault and selectively duplicate them to achieve a target reliability vs. execution time trade-off. To this end we perform a design space exploration to identify layers to be duplicated. Results on the application of the proposed approach to four case study CNNs are reported
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
A Microprocessor Protection Architecture against Hardware Trojans in Memories
Full text linkSoftware exploitable Hardware Trojan Horses (HWTs) have been currently inserted in commercial CPUs and, very recently, in memories. Such attacks may allow malicious users to run their own software or to gain unauthorized privileges over the system. Therefore, HWTs are nowadays considered a serious threat both from academy and industry. This paper presents a protection architecture meant to shield the communication between the CPU and the memory in a microprocessor-based system. The architecture aims at detecting the activation on HWTs infesting the instruction and data memories of the system. Our proposal relies on the use of Bloom Filters (BFs) that are included in ad-hoc designed checkers and integrated in the protection architecture. BFs guarantee zero false alarms and a small (and configurable) percentage of undetected alarms. We applied the protection architecture to a case study system based on a RISC-V microprocessor implemented on an FPGA and running a set of software benchmarks. Our proposal demonstrated to be able to detect more than 99% of possible HWTs activations with zero false alarms. We measured a lookup table overhead ranging from 0.68% up to 10.52% and a flip-flop overhead between 0.68% and 0.99%, and with no working frequency reduction
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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