Results for "Carlotta Domeniconi"

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Multi-View Multiple ClusteringMay 13 2019Multiple clustering aims at exploring alternative clusterings to organize the data into meaningful groups from different perspectives. Existing multiple clustering algorithms are designed for single-view data. We assume that the individuality and commonality ... More
Multiple Independent Subspace ClusteringsMay 10 2019Multiple clustering aims at discovering diverse ways of organizing data into clusters. Despite the progress made, it's still a challenge for users to analyze and understand the distinctive structure of each output clustering. To ease this process, we ... More
Multi-View Multi-Instance Multi-Label Learning based on Collaborative Matrix FactorizationMay 13 2019May 15 2019Multi-view Multi-instance Multi-label Learning(M3L) deals with complex objects encompassing diverse instances, represented with different feature views, and annotated with multiple labels. Existing M3L solutions only partially explore the inter or intra ... More
Ranking-based Deep Cross-modal HashingMay 11 2019Cross-modal hashing has been receiving increasing interests for its low storage cost and fast query speed in multi-modal data retrievals. However, most existing hashing methods are based on hand-crafted or raw level features of objects, which may not ... More
ActiveHNE: Active Heterogeneous Network EmbeddingMay 14 2019May 15 2019Heterogeneous network embedding (HNE) is a challenging task due to the diverse node types and/or diverse relationships between nodes. Existing HNE methods are typically unsupervised. To maximize the profit of utilizing the rare and valuable supervised ... More
Network-based Anomaly Detection for Insider TradingFeb 19 2017Insider trading is one of the numerous white collar crimes that can contribute to the instability of the economy. Traditionally, the detection of illegal insider trades has been a human-driven process. In this paper, we collect the insider tradings made ... More
Theoretical and Empirical Analysis of a Parallel Boosting AlgorithmAug 06 2015Many real-world problems involve massive amounts of data. Under these circumstances learning algorithms often become prohibitively expensive, making scalability a pressing issue to be addressed. A common approach is to perform sampling to reduce the size ... More
A New Framework for Centrality Measures in Multiplex NetworksJan 24 2018Feb 07 2018The non-trivial structure of such complex systems makes the analysis of their collective behavior a challenge. The problem is even more difficult when the information is distributed across networks (e.g., communication networks in different media); in ... More
Nuclear Physics with Electroweak ProbesNov 21 2006The research activitities carried out in Italy during the last two years in the field of theoretical nuclear physics with electroweak probes are reviewed. Different models for electron-nucleus and neutrino-nucleus scattering are compared. The results ... More
ActiveHNE: Active Heterogeneous Network EmbeddingMay 14 2019Heterogeneous network embedding (HNE) is a challenging task due to the diverse node types and/or diverse relationships between nodes. Existing HNE methods are typically unsupervised. To maximize the profit of utilizing the rare and valuable supervised ... More
Multi-View Multi-Instance Multi-Label Learning based on Collaborative Matrix FactorizationMay 13 2019Multi-view Multi-instance Multi-label Learning(M3L) deals with complex objects encompassing diverse instances, represented with different feature views, and annotated with multiple labels. Existing M3L solutions only partially explore the inter or intra ... More
Abelian color cycles: a new approach to strong coupling expansion and dual representations for non-abelian lattice gauge theorySep 01 2016We propose a new approach to strong coupling series and dual representations for non-abelian lattice gauge theories using the SU(2) case as an example. The Wilson gauge action is written as a sum over "abelian color cycles" (ACC) which correspond to loops ... More
Charge fluctuations in single-electron tunneling oscillationsNov 17 2011Mar 13 2012It has been predicted that in the presence of a sufficiently high-dissipative environment transport in a small tunnel junction can become extremely regular, giving rise to the phenomenon of single-electron tunneling oscillations. Recent progress in detection ... More
Gamma-Ray Imaging by Silicon Detectors in Space: the AREM MethodFeb 12 2002We present the Agile REconstruction Method (AREM) for gamma-ray (30 MeV - 50 GeV) direction reconstruction applicable to high-resolution Silicon Tracker detectors in space. It can be used in a "fast mode", independently of Kalman filters techniques, or ... More
The relativistic Green's function model in charged-current quasielastic neutrino and antineutrino scattering at MINER$ν$A kinematicsApr 14 2014The analysis of charged-current quasielastic neutrino and antineutrino-nucleus scattering cross sections requires relativistic theoretical descriptions also accounting for the role of final-state interactions. We compare the results of the relativistic ... More
Quasielastic scattering with the Relativistic Green's Function approachApr 08 2013A relativistic model for quasielastic (QE) lepton-nucleus scattering is presented. The effects of final-state interactions (FSI) between the ejected nucleon and the residual nucleus are described in the relativistic Green's function (RGF) model where ... More
Dualization of non-abelian lattice gauge theory with Abelian Color Cycles (ACC)Nov 03 2016We discuss a new approach to strong coupling expansion and dual representations for non-abelian lattice gauge theories. The Wilson gauge action is decomposed into a sum over "abelian color cycles" (ACC), which are loops around plaquettes visiting different ... More
Adaptive isogeometric methods with hierarchical splines: error estimator and convergenceFeb 02 2015Apr 20 2015The problem of developing an adaptive isogeometric method (AIGM) for solving elliptic second-order partial differential equations with truncated hierarchical B-splines of arbitrary degree and different order of continuity is addressed. The adaptivity ... More
The Relativistic Green's function model and charged-current inclusive neutrino-nucleus scattering at T2K kinematicsJan 14 2015We compare the results of the relativistic Green's function model with the experimental data of the charged-current inclusive differential neutrino-nucleus cross sections published by the T2K Collaboration. The model, which is able to describe both MINER$\nu$A ... More
Final-state interactions effects in neutral-current neutrino and antineutrino cross sections at MiniBooNE kinematicsJan 15 2014Mar 30 2014The analysis of the recent neutral-current elastic neutrino and antineutrino-nucleus scattering cross sections measured by the MiniBooNE Collaboration requires relativistic theoretical descriptions also accounting for the role of final-state interactions. ... More
Relativistic Descriptions of Final-State Interactions in Quasielastic Electron and Neutrino-Nucleus ScatteringOct 18 2011Models developed within the framework of the relativistic impulse approximation for quasielastic (QE) electron and neutrino-nucleus scattering are discussed. Different descriptions of final-state interactions (FSI) in the inclusive scattering are compared: ... More
Relativistic models for quasielastic electron and neutrino-nucleus scatteringDec 12 2012Relativistic models developed within the framework of the impulse approximation for quasielastic (QE) electron scattering and successfully tested in comparison with electron-scattering data have been extended to neutrino-nucleus scattering. Different ... More
Models for quasielastic electron and neutrino-nucleus scatteringJul 27 2011Models developed for the exclusive and inclusive quasielastic (QE) electron-nucleus scattering have been extended to QE neutrino-nucleus scattering. Different descriptions of final-state interactions (FSI) are compared. For the inclusive electron scattering ... More
Exact controllability to trajectories for entropy solutions to scalar conservation laws in several space dimensionsMar 18 2019We describe a new method which allows us to obtain a result of exact controllability to trajectories of multidimensional conservation laws in the context of entropy solutions and under a mere non-degeneracy assumption on the flux and a natural geometric ... More
On the existence of bright IR galaxies at z>2: tension between Herschel and SCUBA-2 results?Dec 03 2018Recent derivations of the galaxy star formation rate density (SFRD) obtained from sub-millimetre (sub-mm) surveys (e.g., SCUBA-2) show a tension with previous works based on Herschel and multi-wavelength data. Some of these works claim that the SFRD derived ... More
The Relativistic Green's Function Model for Quasielastic Neutrino-Nucleus ScatteringSep 17 2013A model based on the relativistic impulse approximation for quasielastic lepton-nucleus scattering is presented. The effects of the final-state interactions (FSI) between the emitted nucleon and the residual nucleus are described by the relativistic Green's ... More
Recent Results of the Relativistic Green's Function Model in Quasielastic Neutrino and Antineutrino-Nucleus ScatteringSep 19 2014The analysis of quasielastic neutrino and antineutrino-nucleus scattering cross sections requires relativistic theoretical descriptions also accounting for the role of final-state interactions (FSI). In the relativistic Green's function (RGF) model FSI ... More
Relativistic descriptions of final-state interactions in charged-current quasielastic antineutrino-nucleus scattering at MiniBooNE kinematicsFeb 20 2012May 03 2012The analysis of the recent charged-current neutrino-nucleus scattering cross sections measured by the MiniBooNE Collaboration requires relativistic theoretical descriptions also accounting for the role of final-state interactions. In this work, we evaluate ... More
Relativistic descriptions of final-state interactions in neutral-current neutrino-nucleus scattering at MiniBooNE kinematicsOct 18 2011The analysis of the recent neutral-current neutrino-nucleus scattering cross sections measured by the MiniBooNE Collaboration requires relativistic theoretical descriptions also accounting for the role of final state interactions. In this work we evaluate ... More
Crowd dynamics and conservation laws with non-local constraintsApr 23 2013In this paper we model pedestrian flows evacuating a narrow corridor through an exit by a one-dimensional hyperbolic conservation law with a non-local constraint. Existence and stability results for the Cauchy problem with Lipschitz constraint are achieved ... More
Neutral-current neutrino-nucleus quasielastic scatteringMay 03 2004A relativistic distorted-wave impulse-approximation model to quasielastic neutral-current neutrino-nucleus scattering is developed, using the relativistic mean field theory for the bound state and taking into account the final state interaction in the ... More
Charged-Current and Neutral-Current Neutrino-Nucleus Scattering in a Relativistic ApproachJun 16 2009Relativistic models developed for the exclusive and inclusive QuasiElastic (QE) electron scattering have been extended to Charged-Current (CC) and Neutral-Current (NC) neutrino-nucleus scattering. The results of different descriptions of Final-State Interactions ... More
Relativistic Green's function approach to parity-violating quasielastic electron scatteringJan 20 2005A relativistic Green's function approach to parity-violating quasielastic electron scattering is presented. The components of the hadron tensor are expressed in terms of the single particle Green's function, which is expanded in terms of the eigenfunctions ... More
Adaptive scattered data fitting by extension of local approximations to hierarchical splinesApr 27 2017We introduce an adaptive scattered data fitting scheme as extension of local least squares approximations to hierarchical spline spaces. To efficiently deal with non-trivial data configurations, the local solutions are described in terms of (variable ... More
The local star formation rate and radio luminosity densityAug 24 1998Dec 04 2001We present a new determination of the local volume-averaged star formation rate from the 1.4 GHz luminosity function of star forming galaxies. Our sample, taken from the B<=12 Revised Shapley-Ames catalogue (231 normal spiral galaxies over effective area ... More
Relativistic descriptions of final-state interactions in charged-current neutrino-nucleus scattering at ArgoNeuT kinematicsMay 23 2013The analysis of the recent charged-current neutrino-nucleus scattering cross sections measured by the ArgoNeuT Collaboration requires relativistic theoretical descriptions also accounting for the role of final-state interactions. In this work, we evaluate ... More
Strange quark effects in electron and neutrino-nucleus quasi-elastic scatteringNov 15 2006The role of the sea quarks to ground state nucleon properties with electroweak probes is discussed. A relativistic Green's function approach to parity violating electron scattering and a distorted-wave impulse-approximation applied to charged- and neutral-current ... More
Relativistic approach to (e,e'p) and (e,e') reactionsNov 21 2003A relativistic distorted wave impulse approximation model for electron-induced one proton knockout reactions and a Green's function approach to inclusive scattering are developed. Results for (e,e'p) and (e,e') reactions are presented in various kinematical ... More
Predictions for Cosmological Infrared Surveys with Herschel from a Mid-Infrared Phenomenological Evolution ModelNov 18 2004We make predictions for the cosmological surveys to be conducted by the future Herschel mission operating in the far-infrared. The far-infrared bands match the peak of the CIRB, the brightest background of astrophysical origin. Therefore, surveys in these ... More
C2 continuous time dependent feedrate scheduling with configurable kinematic constraintsNov 21 2017We present a configurable trajectory planning strategy on planar paths for offline definition of time-dependent C2 piecewise quintic feedrates. The more conservative formulation ensures chord tolerance, as well as prescribed bounds on velocity, acceleration ... More
Self-Consistent Evolution of Ring GalaxiesJun 21 1995Ring galaxies are commonly known as objects where a burst of star formation was triggered by a close encounter with an intruder, maybe a satellite galaxy. BVRI CCD observations of five ring galaxies have been performed. Here we present the results of ... More
Relativistic approach to neutrino-nucleus quasielastic scatteringJan 20 2005A relativistic Green's function and a distorted-wave impulse-approximation approach to charged- and neutral-current neutrino-nucleus quasielastic scattering are developed. Results for the neutrino (antineutrino) reactions on $^{16}$O and $^{12}$C target ... More
Meson exchange currents in a relativistic model for electromagnetic one nucleon emissionMay 20 2002We analyze the role of meson exchange currents (MEC) in photon- and electron-induced one nucleon emission reactions in a fully relativistic model. The relativistic mean field theory is used for the bound state and the Pauli reduction for the scattering ... More
Initial-boundary value problems for continuity equations with BV coefficientsApr 03 2013We establish well-posedness of initial-boundary value problems for continuity equations with BV (bounded total variation) coefficients. We do not prescribe any condition on the orientation of the coefficients at the boundary of the domain. We also discuss ... More
The radio luminosity density of star-burst galaxies and co-moving star formation rateAug 24 1998We present a new determination of the co-moving star formation density at redshifts z~<0.35 from the 1.4 GHz luminosity function of sub-mJy star-burst galaxies. Our sample, taken from Benn et al. (1993), is insensitive to dust obscuration. The shape of ... More
Neutrino-nucleus quasi-elastic scattering and strange quark effectsJan 18 2006Jan 19 2006A relativistic distorted-wave impulse-approximation model is applied to quasi-elastic neutrino-nucleus scattering. The bound state is obtained in the framework of the relativistic mean field theory and the final state interaction is taken into account ... More
Relativistic Green's function approach to charged-current neutrino-nucleus quasielastic scatteringNov 21 2003A relativistic Green's function approach to inclusive quasielastic charged-current neutrino-nucleus scattering is developed. The components of the hadron tensor are written in terms of the single-particle Green's function, which is expanded on the eigenfunctions ... More
Relativistic approach to one nucleon knockout reactionsNov 08 2002We develop a fully relativistic distorted wave impulse approximation model for electron- and photon-induced one proton knockout reactions. The relativistic mean field for the bound state and the Pauli reduction for the scattering state are used, including ... More
Optical identifications and spectroscopy of a faint radio source sample: the nature of the sub-mJy populationNov 19 1998Deep imaging and spectroscopy have been carried out for optical counterparts of a sample of 68 faint radio sources (S > 0.2 mJy) in the ``Marano Field''. About 60% of the sources have been optically identified on deep CCD exposures (limit R ~ 24.0) or ... More
A new CMS pixel detector for the LHC luminosity upgradeApr 07 2011The CMS inner pixel detector system is planned to be replaced during the first phase of the LHC luminosity upgrade. The plans foresee an ultra low mass system with four barrel layers and three disks on either end. With the expected increase in particle ... More
Proton-Nucleus Elastic Scattering: Comparison between Phenomenological and Microscopic Optical PotentialsJun 04 2018Elastic scattering is a very important process to understand nuclear interactions in finite nuclei. Despite decades of efforts, the goal of reaching a coherent description of this physical process in terms of microscopic forces is still far from being ... More
Isogeometric analysis with $C^1$ hierarchical functions on planar two-patch geometriesJan 28 2019Adaptive isogeometric methods for the solution of partial differential equations rely on the construction of locally refinable spline spaces. A simple and efficient way to obtain these spaces is to apply the multi-level construction of hierarchical splines, ... More
Well-posedness for a monotone solver for traffic junctionsMay 05 2016In this paper we aim at proving well-posedness of solutions obtained as vanishing viscosity limits for the Cauchy problem on a traffic junction where $m$ incoming and $n$ outgoing roads meet. The traffic on each road is governed by a scalar conservation ... More
Blazar Duty-Cycle at gamma-ray Frequecies: Constraints from Extragalactic Background Radiation and Prospects for AGILE and GLASTMay 04 2007We take into account the constraints from the observed extragalactic gamma-ray background to estimate the maximum duty cycle allowed for a selected sample of WMAP Blazars, in order to be detectable by AGILE and GLAST gamma-ray experiments. For the nominal ... More
Electromagnetic proton-neutron knockout off 16O: new achievements in theoryJun 05 2007Results for the cross sections of the exclusive 16O(e,e'pn)14N and 16O(gamma,pn)14N knockout reactions are presented and discussed in different kinematics. In comparison with earlier work, a complete treatment of the center-of-mass (CM) effects in the ... More
Center-of-mass effects in electromagnetic two-proton knockout reactionsJan 19 2007The role of center-of mass (CM) effects in the one-body nuclear current in the description of electromagnetically induced two-nucleon knockout reactions is discussed in connection with the problem of the lack of orthogonality between initial bound states ... More
HST imaging survey of sub-mJy star-forming galaxies I: morphologies at z ~ 0.2Jul 03 2000We present the first results of our HST WFPC2 F814W snapshot imaging survey, targeting virtually all sub-mJy decimetric radio-selected star-forming galaxies. The radio selection at ~1 GHz is free from extinction effects and the radio luminosities are ... More
Riemann problems with non--local point constraints and capacity dropMar 17 2014In the present note we discuss in details the Riemann problem for a one--dimensional hyperbolic conservation law subject to a point constraint. We investigate how the regularity of the constraint operator impacts the well--posedness of the problem, namely ... More
Neutron density distribution and neutron skin thickness of $^{208}$PbMar 30 2014Apr 08 2014We present and discuss numerical predictions for the neutron density distribution of $^{208}$Pb using various non-relativistic and relativistic mean-field models for the nuclear structure. Our results are compared with the very recent pion photoproduction ... More
Bivariate hierarchical Hermite spline quasi--interpolationJan 10 2016Spline quasi-interpolation (QI) is a general and powerful approach for the construction of low cost and accurate approximations of a given function. In order to provide an efficient adaptive approximation scheme in the bivariate setting, we consider quasi-interpolation ... More
Inclusive electron scattering in a relativistic Green function approachJan 27 2003A relativistic Green function approach to the inclusive quasielastic (e,e') scattering is presented. The single particle Green function is expanded in terms of the eigenfunctions of the nonhermitian optical potential. This allows one to treat final state ... More
Adaptive isogeometric analysis with hierarchical box splinesMay 04 2018Isogeometric analysis is a recently developed framework based on finite element analysis, where the simple building blocks in geometry and solution space are replaced by more complex and geometrically-oriented compounds. Box splines are an established ... More
An application of numerical differentiation formulas to discontinuity curve detection from irregularly sampled dataDec 18 2018We present a method to detect discontinuity curves, usually called faults, from a set of scattered data. The scheme first extracts from the data set a subset of points close to the faults. This selection is based on an indicator obtained by using numerical ... More
EvolveGCN: Evolving Graph Convolutional Networks for Dynamic GraphsFeb 26 2019Graph representation learning resurges as a trending research subject owing to the widespread use of deep learning for Euclidean data, which inspire various creative designs of neural networks in the non-Euclidean domain, particularly graphs. With the ... More
Complexity of hierarchical refinement for a class of admissible mesh configurationsSep 18 2015An adaptive isogeometric method based on $d$-variate hierarchical spline constructions can be derived by considering a refine module that preserves a certain class of admissibility between two consecutive steps of the adaptive loop [6]. In this paper ... More
On the role of conserved moieties in shaping the robustness and production capabilities of reaction networksOct 29 2008We study a simplified, solvable model of a fully-connected metabolic network with constrained quenched disorder to mimic the conservation laws imposed by stoichiometry on chemical reactions. Within a spin-glass type of approach, we show that in presence ... More
Muon Magnetic Moment and the Goldstone Boson HiggsJul 09 2014We compute the correction to the muon magnetic moment in theories where the Higgs is a pseudo-Goldstone boson and leptons are partially composite. Using a general effective lagrangian we show that in some regions of parameters a sizable new physics contribution ... More
An existence result for a constrained two-phase transition model with metastable phase for vehicular trafficApr 20 2018In this paper we study a phase transition model for vehicular traffic flows. Two phases are taken into account, according to whether the traffic is light or heavy. We assume that the two phases have a non-empty intersection, the so called metastable phase. ... More
Qualitative behaviour and numerical approximation of solutions to conservation laws with non-local point constraints on the flux and modeling of crowd dynamics at the bottlenecksMar 10 2015In this paper we investigate numerically the model for pedestrian traffic proposed in [B.Andreianov, C.Donadello, M.D.Rosini, Crowd dynamics and conservation laws with nonlocal constraints and capacity drop, Mathematical Models and Methods in Applied ... More
SPICA spectroscopic cosmological surveys to unravel galaxy evolutionSep 30 2013The main energy-generating mechanisms in galaxies are black hole (BH) accretion and star formation (SF) and the interplay of these processes is driving the evolution of galaxies. MIR/FIR spectroscopy are able to distinguish between BH accretion and SF, ... More
A Data-driven Approach Towards Human-robot Collaborative Problem Solving in a Shared SpaceOct 01 2017We are developing a system for human-robot communication that enables people to communicate with robots in a natural way and is focused on solving problems in a shared space. Our strategy for developing this system is fundamentally data-driven: we use ... More
Herschel observations: contraints on dust attenuation and star formation histories at high redshiftOct 13 2013SPICA is one of the key projects for the future. Not only its instrument suite will open up a discovery window but they will also allow to physically understand some of the phenomena that we still do not understand in the high-redshift universe. Using ... More
Elastic and quasi-elastic electron scattering off nuclei with neutron excessFeb 14 2013May 23 2013We present theoretical predictions for electron scattering on oxygen and calcium isotopic chains. The calculations are done within the framework of the distorted-wave Born approximation and the proton and neutron density distributions are evaluated adopting ... More
Radio Observations of the Marano Field and the Faint Radio Galaxy PopulationDec 20 1996Radio surveys with the Australia Telescope Compact Array have been carried out at 1.4 and 2.4 GHz with a limiting flux of 0.2 mJy at each frequency in the Marano Field, in which deep optical and X-ray (ROSAT) data are also available. In this paper we ... More
AFM Dissipation Topography of Soliton Superstructures in Adsorbed OverlayersJul 21 2009Sep 07 2010In the atomic force microscope, the nanoscale force topography of even complex surface superstructures is extracted by the changing vibration frequency of a scanning tip. An alternative dissipation topography with similar or even better contrast has been ... More
The LARI Method for ISO-CAM/PHOT Data Reduction and AnalysisOct 25 2002The techniques and software tools developed for the reduction and analysis of ISO-CAM/PHOT data with the LARI method are presented. The method, designed for the detection of faint sources in ISO raster observations, is based on the assumption of the existence ... More
Crossover from adiabatic to antiadiabatic quantum pumping with dissipationApr 05 2011Aug 30 2011Quantum pumping, in its different forms, is attracting attention from different fields, from fundamental quantum mechanics, to nanotechnology, to superconductivity. We investigate the crossover of quantum pumping from the adiabatic to the anti-adiabatic ... More
Far-IR/Submillimeter Spectroscopic Cosmological Surveys: Predictions of Infrared Line Luminosity Functions for z<4 GalaxiesOct 21 2011Star formation and accretion onto supermassive black holes in the nuclei of galaxies are the two most energetic processes in the Universe, producing the bulk of the observed emission throughout its history. We simulated the luminosity functions of star-forming ... More
Effect of delithiation on the dimer transition of the honeycomb-lattice ruthenate Li$_{2-x}$RuO$_3$Mar 29 2016The honeycomb-lattice ruthenate Li$_2$RuO$_3$ is made heavily Li-deficient by chemical oxidation by iodine. The delithiation triggers a different phase Li$_{2-x}$RuO$_3$, the "D-phase", with superlattice. For the first time we disclose the magnetic and ... More
A comprehensive characterization of the set of polynomial curves with rational rotation-minimizing framesApr 24 2016A rotation-minimizing frame $({\bf f}_1,{\bf f}_2,{\bf f}_3)$ on a space curve ${\bf r}(\xi)$ defines an orthonormal basis for $\mathbb{R}^3$ in which ${\bf f}_1={\bf r}'/|{\bf r}'|$ is the curve tangent, and the normal-plane vectors ${\bf f}_2$, ${\bf ... More
Elastic and quasi-elastic electron scattering on the N = 14, 20, and 28 isotonic chainsNov 18 2013We present theoretical predictions for electron scattering on the N = 14, 20, and 28 isotonic chains from proton-deficient to proton-rich nuclei. The calculations are performed within the framework of the distorted-wave Born approximation and the proton ... More
Solution of a quadratic quaternion equation with mixed coefficientsJun 18 2015A comprehensive analysis of the morphology of the solution space for a special type of quadratic quaternion equation is presented. This equation, which arises in a surface construction problem, incorporates linear terms in a quaternion variable and its ... More
An adaptive IGA-BEM with hierarchical B-splines based on quasi-interpolation quadrature schemesJul 10 2018Jul 12 2018The isogeometric formulation of Boundary Element Method (BEM) is investigated within the adaptivity framework. Suitable weighted quadrature rules to evaluate integrals appearing in the Galerkin BEM formulation of 2D Laplace model problems are introduced. ... More
Relativistic description of final-state interactions in neutral-current neutrino and antineutrino cross sectionsJul 16 2013We evaluate semi-inclusive neutral-current quasielastic differential neutrino and antineutrino cross sections within the framework of the relativistic impulse approximation. The results of the relativistic mean field and of the relativistic Green's function ... More
Extreme submillimetre starburst galaxiesApr 25 2017Sep 10 2018We use two catalogues, a Herschel catalogue selected at 500 mu (HerMES) and an IRAS catalogue selected at 60 mu (RIFSCz), to contrast the sky at these two wavelengths. Both surveys demonstrate the existence of extreme starbursts, with star-formation rates ... More
The star-formation rate density from z = 0-6May 12 2016May 17 2016We use 3035 Herschel-SPIRE 500$\mu$m sources from 20.3 sq deg of sky in the HerMES Lockman, ES1 and XMM-LSS areas to estimate the star-formation rate density at z = 1-6. 500 mu sources are associated first with 350 and 250 mu sources, and then with Spitzer ... More
LivDet in Action - Fingerprint Liveness Detection Competition 2019May 02 2019The International Fingerprint liveness Detection Competition (LivDet) is an open and well-acknowledged meeting point of academies and private companies that deal with the problem of distinguishing images coming from reproductions of fingerprints made ... More
Multi-Wavelength Observations of the HBL Object 1ES 1011+496 in Spring 2008Sep 29 2011In the spring of 2008 MAGIC organised multi-wavelength (MWL) observations of the blazar 1ES 1011+496. 1ES 1011+496 is a high-frequency peaked BL Lac object discovered at VHE gamma-rays by MAGIC in spring 2007 during an optical outburst reported by the ... More
Estimate of the theoretical uncertainty of the cross sections for nucleon knockout in neutral-current neutrino-oxygen interactionsJun 08 2015Free nucleons propagating in water are known to produce gamma rays, which form a background to the searches for diffuse supernova neutrinos and sterile neutrinos carried out with Cherenkov detectors. As a consequence, the process of nucleon knockout induced ... More
Exotic atoms at extremely high magnetic fields: the case of neutron star atmosphereDec 19 2017The presence of exotic states of matter in neutron stars (NSs) is currently an open issue in physics. The appearance of muons, kaons, hyperons, and other exotic particles in the inner regions of the NS, favored by energetic considerations, is considered ... More
A hybrid model for the evolution of galaxies and Active Galactic Nuclei in the infraredMar 10 2013[Abridged] We present a comprehensive investigation of the cosmological evolution of the luminosity function (LF) of galaxies and active galactic nuclei (AGN) in the infrared (IR). Based on the observed dichotomy in the ages of stellar populations of ... More
Autonomous Observations in Antarctica with AMICAMar 02 2010The Antarctic Multiband Infrared Camera (AMICA) is a double channel camera operating in the 2-28 micron infrared domain (KLMNQ bands) that will allow to characterize and exploit the exceptional advantages for Astronomy, expected from Dome C in Antarctica. ... More
Black hole accretion preferentially occurs in gas rich galaxiesMar 31 2014We have investigated the gas content of a sample of several hundred AGN host galaxies at z$<$1 and compared it with a sample of inactive galaxies, matched in bins of stellar mass and redshift. Gas masses have been inferred from the dust masses, obtained ... More
Suitably graded THB-spline refinement and coarsening: Towards an adaptive isogeometric analysis of additive manufacturing processesNov 01 2018In the present work we introduce a complete set of algorithms to efficiently perform adaptive refinement and coarsening by exploiting truncated hierarchical B-splines (THB-splines) defined on suitably graded isogeometric meshes, that are called admissible ... More
GAMMA-LIGHT: High-Energy Astrophysics above 10 MeVJun 04 2014High-energy phenomena in the cosmos, and in particular processes leading to the emission of gamma- rays in the energy range 10 MeV - 100 GeV, play a very special role in the understanding of our Universe. This energy range is indeed associated with non-thermal ... More
A decline and fall in the future of Italian Astronomy?Jul 08 2010On May 27th 2010, the Italian astronomical community learned with concern that the National Institute for Astrophysics (INAF) was going to be suppressed, and that its employees were going to be transferred to the National Research Council (CNR). It was ... More