4,951 research outputs found
An Empirical Study on Android-related Vulnerabilities
Mobile devices are used more and more in everyday life. They are our cameras,
wallets, and keys. Basically, they embed most of our private information in our
pocket. For this and other reasons, mobile devices, and in particular the
software that runs on them, are considered first-class citizens in the
software-vulnerabilities landscape. Several studies investigated the
software-vulnerabilities phenomenon in the context of mobile apps and, more in
general, mobile devices. Most of these studies focused on vulnerabilities that
could affect mobile apps, while just few investigated vulnerabilities affecting
the underlying platform on which mobile apps run: the Operating System (OS).
Also, these studies have been run on a very limited set of vulnerabilities.
In this paper we present the largest study at date investigating
Android-related vulnerabilities, with a specific focus on the ones affecting
the Android OS. In particular, we (i) define a detailed taxonomy of the types
of Android-related vulnerability; (ii) investigate the layers and subsystems
from the Android OS affected by vulnerabilities; and (iii) study the
survivability of vulnerabilities (i.e., the number of days between the
vulnerability introduction and its fixing). Our findings could help OS and apps
developers in focusing their verification & validation activities, and
researchers in building vulnerability detection tools tailored for the mobile
world
ISR corrections to associated production at future Higgs factories
We evaluate the QED corrections due to initial state radiation (ISR) to
associated Higgs boson production in electron-positron () annihilation
at typical energies of interest for the measurement of the Higgs properties at
future colliders, such as CEPC and FCC-ee. We apply the QED Structure
Function approach to the four-fermion production process , including both signal and background contributions. We
emphasize the relevance of the ISR corrections particularly near threshold and
show that finite third order collinear contributions are mandatory to meet the
expected experimental accuracy. We analyze in turn the r\^ole played by a full
four-fermion calculation and beam energy spread in precision calculations for
Higgs physics at future colliders.Comment: 11 pages, 3 figure
Fractional semantics for classical logic
This article presents a new (multivalued) semantics for classical propositional logic.
We begin by maximally extending the space of sequent proofs so as to admit proofs for any logical formula; then, we extract the new semantics by focusing on the axiomatic structure of proofs. In particular, the interpretation of a formula is given by the ratio between the number of identity axioms out of the total number of axioms occurring in any of its proofs. The outcome is an informational refinement of traditional Boolean semantics, obtained by breaking the symmetry between tautologies and contradictions
A cloud robotics architecture for an emergency management and monitoring service in a smart cityenvironment
Cloud robotics is revolutionizing not only the robotics industry but also the ICT world, giving robots more storage and computing capacity, opening new scenarios that blend the physical to the digital world. In this vision new IT architectures are required to manage robots, retrieve data from them and create services to interact with users. In this paper a possible implementation of a cloud robotics architecture for the interaction between users and UAVs is described. Using the latter as monitoring agents, a service for fighting crime in urban environment is proposed, making one step forward towards the idea of smart cit
Fractional-valued modal logic and soft bilateralism
In a recent paper, under the auspices of an unorthodox variety of bilateralism, we introduced a new kind of proof-theoretic semantics for the base modal logic K, whose values lie in the closed interval [0, 1] of rational numbers. In this paper, after clarifying our conception of bilateralism – dubbed “soft bilateralism” – we generalize the fractional method to encompass extensions and weakenings of K. Specifically, we introduce well-behaved hypersequent calculi for the deontic logic D and the non-normal modal logics E and M and thoroughly investigate their structural properties
- …