139 research outputs found
QuakeSense, a LoRa-compliant Earthquake Monitoring Open System
No full textDetecting disruptive events, such as earthquakes, using environmental monitoring systems is a particularly promising, but rather challenging, opportunity. The Internet of Things (IoT) can play a significant role in characterizing and predicting seismic events. The present contribution introduces QuakeSense, an open-source earthquake and weather monitoring system. The implemented IoT system is configured as a Long Range (LoRa)based star topology with a fully energy-autonomous sensor node. The system leverages some of the most useful features of two emerging IoT technologies, e.g., LoRa and Message Queue Telemetry Transport (MQTT), and enables the near real-time monitoring of seismic events through a web-based interface. An experimental campaign has been carried out to verify the current consumption and, therefore, the battery lifetime of the sensor node. Moreover, LoRa parameters have been extensively tested as to evaluate performances in several configurations. The obtained results in terms of latency and Packet Delivery Ratio (PDR) demonstrated the reliability of the proposal
SourceBroken: A large-scale analysis on the (un)reliability of SourceRank in the PyPI ecosystem
No full textRaze to the ground: query-efficient adversarial HTML attacks on machine-learning phishing webpage detectors
Full text linkMachine-learning phishing webpage detectors (ML-PWD) have been shown to suffer from adversarial manipulations of the HTML code of the input webpage. Nevertheless, the attacks recently proposed have demonstrated limited effectiveness due to their lack of optimizing the usage of the adopted manipulations, and they focus solely on specific elements of the HTML code. In this work, we overcome these limitations by first designing a novel set of fine-grained manipulations which allow to modify the HTML code of the input phishing webpage without compromising its maliciousness and visual appearance, i.e., the manipulations are functionality- and rendering-preserving by design. We then select which manipulations should be applied to bypass the target detector by a query-efficient black-box optimization algorithm. Our experiments show that our attacks are able to raze to the ground the performance of current state-of-the-art ML-PWD using just 30 queries, thus overcoming the weaker attacks developed in previous work, and enabling a much fairer robustness evaluation of ML-PWD
Raze to the ground: Query-efficient adversarial HTML attacks on machine-learning phishing webpage detectors
No full textI rilievi per la mostra e il libro su Biagio Rossetti
No full textNel 1960 Bruno Zevi diede alle stampe il volume Biagio Rossetti architetto ferrarese. Il primo urbanista moderno europeo. Nell’opera, che conta 727 pagine, sono presenti 200 disegni di rilievo riferibili ad una parte delle architetture indagate: si tratta di 19 edifici, di cui 12 civili e 7 sacri.
In chiusura al volume Zevi sintetizza gli eventi che resero possibile la realizzazione prima della famosa mostra Identità di Biagio Rossetti, inaugurata il 28 giugno 1956 nel Ridotto del Teatro Comunale e, quattro anni dopo, dell’imponente libro, indicando i nomi di coloro che collaborarono all’iniziativa. L’autore cita la prof. Luisa Balboni sindaco di Ferrara, e l’assessore alle BB. AA. Mario Roffi che nel 1955 si rivolsero all’allora preside dell’Istituto Universitario di Architettura di Venezia, Giuseppe Samonà per celebrare il 440° anniversario della morte di Rossetti. Zevi afferma che «[...] gli studenti ed io accettammo con entusiasmo di ordinare una mostra: dedicai il mio corso al maestro ferrarese, mentre gli allievi del primo anno rilevarono vari monumenti, e quelli del secondo, con la guida del mio assistente dott. Giuseppe Mazzariol, svolsero indagini documentate in una serie di tesine.» Questo scritto propone alcune riflessioni sul ruolo del rilievo nella vicenda editoriale zeviana e nei suoi esiti.In 1960, Bruno Zevi published the book Biagio Rossetti architetto ferrarese. Il primo urbanista moderno europeo. In the 727 page long work, there are 200 survey drawings, some of which refer to the investigated architectures: these are 19 buildings (twelve non-religious and seven religious).
At the end of the publication, Zevi summarizes the events that made the realization of the book possible before the famous exhibition Identità di Biagio Rossetti, inaugurated on June 28 1956 in the Ridotto of the Municipal Theater. Four years later, the imposing book indicated the names of those who collaborated in the initiative. The author quotes prof. Luisa Balboni, mayor of Ferrara, and the assessore BB. AA. Mario Roffi, who in 1955 contacted the then dean of the University Institute of Architecture in Venice, Giuseppe Samonà to celebrate the 440th anniversary of Rossetti's death. Zevi says "[...] the students and I enthusiastically accepted to organize an exhibition: I dedicated my course to the celebrated Ferrara architect, the first-year students surveyed various monuments, while those of the second year carried out documented investigations in a series of papers with the guidance of my assistant Dr Giuseppe Mazzariol."
This paper offers some reflections on the survey's role in Zevy’s work and its outcomes
Adversarial ModSecurity: Countering Adversarial SQL Injections with Robust Machine Learning
No full textMoney, politics and a future for the international financial system
Full text linkIn developing the architecture for a financial system, the challenge is to combine deregulation and safety nets against systemic failure with effective prudential regulation and oversight. The author analyzes three approaches to choosing an adequate regulatory framework for a financial system. a) Those most worried about panic and herd behavior tend to favor relatively extensive controls on financial institutions'activities, including controls on interest rates and on the volume and direction of lending. b) Those most concerned about moral hazard advocate abolishing controls and safety nets, seeing the solution is stronger market discipline and reduced powers and discretion for regulators. c) Mainstream opinion advocates a mix of measures, to both strengthen market discipline and improve regulatory oversight. The approach a county opts for depends on 1) which monetary and exchange rate regime it chooses, 2) whether it is more concerned about moral hazard or about panic and herd behavior, and 3) how the politics of reform shape its solutions. The author suggests a scenario for development of the global financial system over the next two or three decades that assumes that the final outcome will resemble the market solution - not because that is the optimal policy choice but because of how political weakness will interact with advances in settlement technology. In the author's scenario, the world moves toward a monetary system in which fixed exchange rate systems or de facto currency competition limit the power of central banks. This limits options for discretionary and open-ended liquidity support to help deal with systemic financial crises. The costs of inflexible exchange rates are moderated by new types of wage contracts, using units of account that are correlated with the shocks a particular industry or kind of contract faces -- thus maintaining the positive aspects of monetary systems with flexible nominal exchange rates. Mistrust in monetary authorities and the emergence of private settlements lead to a return of asset-backed money as the means of payment. The disciplines on financial systems come to resemble somewhat those of historical"free banking"systems, with financial institutions requiring high levels of equity and payments systems protected only by limited, fully funded safety nets.Banks&Banking Reform,Fiscal&Monetary Policy,Financial Intermediation,Payment Systems&Infrastructure,Economic Theory&Research,Banks&Banking Reform,Economic Theory&Research,Macroeconomic Management,Financial Intermediation,Financial Economics
The hidden author: an interpretation of Petronius' Satyricon
No full textThe Satyricon of Petronius, a comic novel written in the first century A.D., is famous today primarily for its amazing banquet tale, "Trimalchio's Feast." But this episode is only one part of the larger picture of life during Nero's rule presented in the work. In this accessible discussion of Petronius's masterful use of parody, Gian Biagio Conte offers an interpretation of the Satyricon as a whole. He combines the scholarly precision of close reading with a significant, original theoretical model.At the heart of his interpretation, Conte reveals the technique of the "hidden author" that Petronius employs at the expense of his characters, in particular the teller of the story, Enclopius. By remaining hidden outside the narrative, Petronius invites the reader to smile at the folies de grandeur that occur in a culture of scholars and declaimers. Yet as Conte shows, behind the parody and inexhaustible humor of the Satyricon lies an unexpectedly serious lament. For those familiar with the Satyricon, as well as for new readers, Conte's book will be a reliable, enjoyable guide to the wonders the Satyricon contains
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