Book Series
2014 EN
Michele Biancucci · Jesús Janeiro · Maria Chiara Leva
+2 more
Part 12: Collaboration PlatformsInternational audienceCollaboration is a key issue in modern virtual enterprises adopting service-oriented business models and functional engineering in the offering of their tangible and intangible assets, as in software oriented IT, CAM/CAD, manufacturing industries. In this paper, we aim at introducing the main components of a Collaboration and Decision Making Suite developed for such scenarios, in particular (i) Elgar, a collaborative workspace supporting the elastic collaboration concept, and a standard interface to realize the integration of groupware tools, and (ii) RegalMiner, capable of capturing, monitoring, processing and visualizing collaboration data streams generated from users of Elgar participating a collaborative process that exploits the elastic collaboration approach in order to evaluate individual and group performances by analyzing the generated activities and the produced text contributions
Springer Science+Business Media
Book Series
2014 EN
Michele Spagnuolo · Federico Maggi · Stefano Zanero
Bitcoin, the famous peer-to-peer, decentralized electronic currency system, allows users to benefit from pseudonymity, by generating an arbitrary number of aliases (or addresses) to move funds. However, the complete history of all transactions ever performed, called “blockchain”, is public and replicated on each node. The data it contains is difficult to analyze manually, but can yield a high number of relevant information. In this paper we present a modular framework, BitIodine, which parses the blockchain, clusters addresses that are likely to belong to a same user or group of users, classifies such users and labels them, and finally visualizes complex information extracted from the Bitcoin network. BitIodine labels users semi-automatically with information on their identity and actions which is automatically scraped from openly available information sources. BitIodine also supports manual investigation by finding paths and reverse paths between addresses or users. We tested BitIodine on several real-world use cases, identified an address likely to belong to the encrypted Silk Road cold wallet, or investigated the CryptoLocker ransomware and accurately quantified the number of ransoms paid, as well as information about the victims. We release a prototype of BitIodine as a library for building Bitcoin forensic analysis tools.
Springer Science+Business Media
Book Series
2014 EN
Robert Meersman · Hervé Panetto · Alok Mishra
+8 more
This volume constitutes the refereed proceedings of the following 9 international workshops: OTM Academy, OTM Industry Case Studies Program, Cloud and Trusted Computin, C&TC, Enterprise Integration, Interoperability, and Networking, EI2N, Industrial and Business Applications of Semantic Web Technologies, INBAST, Information Systems, om Distributed Environment, ISDE, Methods, Evaluation, Tools and Applications for the Creation and Consumption of Structured Data for the e-Society, META4eS, Mobile and Social Computing for collaborative interactions, MSC, and Ontology Content, OnToContent 2014. These workshops were held as associated events at OTM 2014, the federated conferences "On The Move Towards Meaningful Internet Systems and Ubiquitous Computing", in Amantea, Italy, in October 2014. The 56 full papers presented together with 8 short papers, 6 posters and 5 keynotes were carefully reviewed and selected from a total of 96 submissions. The focus of the workshops were on the following subjects models for interoperable infrastructures, applications, privacy and access control, reliability and performance, cloud and configuration management, interoperability in (System-of-)Systems, distributed information systems applications, architecture and process in distributed information system, distributed information system development and operational environment, ontology is use for eSociety, knowledge management and applications for eSociety, social networks and social services, social and mobile intelligence, and multimodal interaction and collaboration.
Springer Science+Business Media
Book Series
2014 EN
Margherita Peruzzini · Michele Germani · Eugenia Marilungo
Product-Service is a recent concept based on a novel product un- derstanding consisting of integrated product and service shares. It repre- sents a new trend for industries to innovate their artefacts and create fresh business opportunities. However, moving from product to services requires the identification of the needed assets to create the new solution and the in- tegration of both product-related and service-related activities into a unique product-service lifecycle. In practice, such an evolution can be defined the- oretically but it is hard to implement since supporting tools are strongly product-centred yet. As a consequence, product-service is still a fascinating idea especially in manufacturing sector. This paper tells about a success story of product-service management in manufacturing industry; it de- scribes how a household appliances’ manufacturer shifted from traditional product lifecycle towards product-service lifecycle to manage the new ser- vice. The study starts from analysis of the AS-IS processes and mapping of the ecosystem tangible and intangible assets, and describes how the compa- ny was supported into the definition of an integrated product-service lifecy- cle
Springer Science+Business Media
Journals
2014 EN
Gabriel Lopes Cardoso · Michele Cirafici · Rogerio Jorge
+1 more
We explore various aspects of supersymmetric black hole partition functionsin four-dimensional toroidally compactified heterotic string theory. Thesefunctions suffer from divergences owing to the hyperbolic nature of the chargelattice in this theory, which prevents them from having well-defined modulartransformation properties. In order to rectify this, we regularize thesefunctions by converting the divergent series into indefinite theta functions,thereby obtaining fully regulated single-centered black hole partitionsfunctions.
Journals
2014 EN
Joachim Kopp · Pedro A. N. Machado · Michele Maltoni
+1 more
Neutrino oscillations involving eV-scale neutrino mass states areinvestigated in the context of global neutrino oscillation data including shortand long-baseline accelerator, reactor, and radioactive source experiments, aswell as atmospheric and solar neutrinos. We consider sterile neutrino massschemes involving one or two mass-squared differences at the eV^2 scale denotedby 3+1, 3+2, and 1+3+1. We discuss the hints for eV-scale neutrinos from nu_edisappearance (reactor and Gallium anomalies) and nu_mu->nu_e appearance (LSNDand MiniBooNE) searches, and we present constraints on sterile neutrino mixingfrom nu_mu and neutral-current disappearance data. An explanation of all hintsin terms of oscillations suffers from severe tension between appearance anddisappearance data. The best compatibility is obtained in the 1+3+1 scheme witha p-value of 0.2% and exceedingly worse compatibilities in the 3+1 and 3+2schemes.
Journals
2014 EN
Michele Della Morte · S. Dooling · Jochen Heitger
+2 more
We present a strategy how to match the full set of components of the heavy-light axial and vector currents in Heavy Quark Effective Theory (HQET), up to and including 1/m-corrections, to QCD. While the ultimate goal is to apply these matching conditions non-perturbatively, in this study we first have implemented them at tree-level, in order to find good choices of the matching observables with small O(1/m^2) contributions. They can later be employed in the non-perturbative matching procedure which is a crucial part of precision HQET computations of semileptonic decay form factors in lattice QCD
Journals
2014 EN
Stefania De Curtis · Michele Redi · Elena Vigiani
We introduce a general parametrisation for theories where the Higgs is aGoldstone boson that encompasses all existing models. Our construction deviatesfrom extra-dimensional or deconstructed theories through the inclusion of"non-local" interactions in theory space. These terms are necessary toreproduce the most general 4D effective lagrangian compatible with thesymmetries. After showing the relation of our formalism to theCallan-Coleman-Wess-Zumino effective lagrangian we apply our framework toSO(5)/SO(4) composite Higgs models studying the implications for the Higgspotential, coupling of resonances and S-parameter. We also outline therelevance of non-minimal terms in effective descriptions of QCD, studying theelectro-magnetic splitting of pions and the correlation between L_9 and L_10 inthe chiral lagrangian.
Journals
2014 EN
Alex Kehagias · Michele Maggiore
We discuss static spherically symmetric solutions in a recently proposednon-local infrared modification of Einstein equations induced by a term$m^2g_{\mu\nu}\Box^{-1} R$, where $m$ is a mass scale. We find that, contraryto what happens in usual theories of massive gravity, in this non-local theorythere is no vDVZ discontinuity and classical non-linearities do not becomelarge below a Vainshtein radius parametrically larger than the Schwarzschildradius $r_S$. Rather on the contrary, in the regime $r\ll m^{-1}$ thecorrections to the metric generated by a static body in GR are of the form$1+{\cal O}(m^2r^2)$ and become smaller and smaller toward smaller values of$r$. The modification to the GR solutions only show up at $r > m^{-1}$. For$m={\cal O}(H_0)$, as required for having interesting cosmologicalconsequences, the non-local theory therefore recovers all successes of GR atthe solar system and lab scales.
Journals
2014 EN
Michele Redi
We study the lepton sector of composite Higgs models with partialcompositeness. The standard anarchic scenario is in conflict with the absenceof observable charged lepton flavor violation. This tension can be completelysolved in MFV scenarios that require either left-handed or right-handed SMleptons to be equally composite. Constraints on this scenario are weak and thecomposite lepton partners could be as light as few hundreds GeVs withinteresting LHC signatures. The contribution to the muon (g-2) in theorieswhere the Higgs is a pseudo Nambu-Goldstone boson is also discussed.