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Results for "Mohamed Wiem Mkaouer"

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On the Use of Information Retrieval to Automate the Detection of Third-Party Java Library Migration at the Method LevelJun 02 2019The migration process between different third-party libraries is hard, complex and error-prone. Typically, during a library migration, developers need to find methods in the new library that are most adequate in replacing the old methods of the retired ... More
Do Design Metrics Capture Developers Perception of Quality? An Empirical Study on Self-Affirmed Refactoring ActivitiesJul 10 2019Background. Refactoring is a critical task in software maintenance and is generally performed to enforce the best design and implementation practices or to cope with design defects. Several studies attempted to detect refactoring activities through mining ... More
Learning to Recommend Third-Party Library Migration Opportunities at the API LevelJun 07 2019The manual migration between different third-party libraries represents a challenge for software developers. Developers typically need to explore both libraries Application Programming Interfaces, along with reading their documentation, in order to locate ... More
Comparison of block-based and hybrid-based programming environments in transferring programming skills to text-based environmentJun 02 2019Teachers face several challenges when presenting the fundamental concepts of programming in the classroom. Several tools are introduced to give a visual dimension to support the learning process. These tools rely on code blocks, easily manipulated in ... More
Resiliency in Distributed Sensor Networks for PHM of the Monitoring TargetsAug 20 2016In condition-based maintenance, real-time observations are crucial for on-line health assessment. When the monitoring system is a wireless sensor network, data loss becomes highly probable and this affects the quality of the remaining useful life prediction. ... More
Statistique sur la cyclicité de A-module de Drinfeld de rang 2Jun 17 2006Jun 21 2006Let $\Phi $ be a Drinfeld $\mathbf{F}\_{q}[T]$-module of rank 2, over a finite field $L=\mathbf{F}\_{q^{n}}$. We will study the cyclic property of the structure $L^{\Phi}.$ We will prove that the latter is cyclic only for trivial extensions of $\mathbf{F}\_{q}$. ... More
WinBioinfTools: Bioinformatics Tools for Windows High Performance Computing Server 2008May 05 2009Open source bioinformatics tools running under MS Windows are rare to find, and those running under Windows HPC cluster are almost non-existing. This is despite the fact that the Windows is the most popular operating system used among life scientists. ... More
Creativity Inspired Zero-Shot LearningApr 01 2019Apr 03 2019Zero-shot learning (ZSL) aims at understanding unseen categories with no training examples from class-level descriptions. To improve the discriminative power of zero-shot learning, we model the visual learning process of unseen categories with an inspiration ... More
On the pre-Lie algebra of specified Feynman graphsDec 10 2018Feb 13 2019We study the pre-Lie algebra of specified Feynman graphs $\wt{V}_{\Cal T}$ and we define a pre-Lie structure on its doubling space $\wt{\Cal F}_{\Cal T}$. We prove that $\wt{\Cal F}_{\Cal T}$ is pre-Lie module on $\wt{V}_{\Cal T}$ and we find some relations ... More
The A-module Structure Induced by a Drinfeld A-module over a Finite FieldDec 18 2004Apr 01 2005Let $\Phi $ be a Drinfeld $\mathbf{F}_{q}[T]$-module of rank 2, over a finite field $L$, a finite extension of $n$ degrees for a finite field with $q$ elements $% \mathbf{F}_{q}$. Let $P_{\Phi}(X)=$ $X^{2}-cX+\mu P^{m}$ ($c$ an element of $% \mathbf{F}_{q}[T]$ ... More
Groupes de renormalisation pour deux algèbres de Hopf en produit semi-directJul 05 2012We consider two interacting connected graded Hopf algebras, the former being a comodule-coalgebra on the latter. We show how to define analogues of Connes-Kreimer's renormalization group and Beta function, when the graduation operator is replaced by any ... More
Sur la Structure de A-module de Drinfeld de rang 2Jun 17 2006$\Phi $ be a Drinfeld $\mathbf{F}\_{q}[T]$-module of rank 2, over a finite field $L$. Let $P\_{\Phi}(X)=$ $X^{2}-cX+\mu P^{m}$ ($c$ an element of $\mathbf{F}\_{q}[T],$ $\mu $ be a non-vanishing element of $% \mathbf{F}\_{q}$, $m$ the degree of the extension ... More
Doubling bialgebras of graphs and feynman rulesMay 13 2016In this article, we define a doubling procedure for the bialgebra of specified Feynman graphs introduced in a previous paper \cite {DMB}. This is the vector space generated by the pairs $(\bar \Gamma, \bar \gamma)$ where $\bar \Gamma$ is a locally $1PI$ ... More
Endomorphism Rings and Isogenies Classes for Drinfeld Modules of Rank 2 Over Finite FieldsDec 18 2004Mar 31 2005Let $\Phi $ be a Drinfeld $\mathbf{F}_{q}[T]$-module of rank 2, over a finite field $L$, a finite extension of $n$ degrees of a finite field with $q$ elements $\mathbf{F}_{q}$. Let $m$ be the extension degrees of $ L$ over the field $\mathbf{F}_{q}[T]/P$, ... More
Strong CP problem, Neutron EDM and Thermal QCD sum rulesNov 20 2003The behaviour of the broken CP symmetry at finite temperature is examined. This is achieved through the investigation of the neutron electric dipole moment $d_n$ induced by $\theta$-term. By using thermal QCD sum rules, we find that below the critical ... More
Decomposition of bilinear forms as sum of bounded formsNov 03 2014The problem of decomposition of bilinear forms which satisfy a certain condition has been studied by many authors by example in \cite{H08}: Let $H$ and $K$ be Hilbert spaces and let $A,C \in B(H),B,D\in B(K)$. Assume that $u:H\times Karrow \C$ a bilinear ... More
Influence of ICTs on workforce productivity in Egyptian industrial organizationsJul 08 2014Aug 01 2014Present study aims to investigate the influence of ICTs dimensions: Information Technology, Management Information System, Office automation, Intranet and Internet on workforce productivity for a group of industrial organizations in Alexandria, Egypt. ... More
On the birational anabelian section conjectureNov 29 2012Assuming the finiteness of the Shafarevich-Tate group of elliptic curves over number fields we make several observations on the birational Grotendieck anabelian setion conjecture. We prove that the birational setion conjecture for curves over number fields ... More
Multicore Dynamic Kernel Modules Attachment Technique for Kernel Performance EnhancementNov 20 2012Traditional monolithic kernels dominated kernel structures for long time along with small sized kernels,few hardware companies and limited kernel functionalities. Monolithic kernel structure was not applicable when the number of hardware companies increased ... More
Implementation of Security in Distributed Systems - A Comparative StudyNov 09 2012This paper presents a comparative study of distributed systems and the security issues associated with those systems. Four commonly used distributed systems were considered for detailed analysis in terms of technologies involved, security issues faced ... More
Rigidity for group actions on homogeneous spaces by affine transformationsFeb 15 2015We give a criterion for the rigidity of actions on homogeneous spaces. Let $G$ be a real Lie group, $\Lambda$ a lattice in $G$, and $\Gamma$ a subgroup of the affine group Aff$(G)$ stabilizing $\Lambda$. Then the action of $\Gamma$ on $G/\Lambda$ has ... More
Etale fundamental groups of affinoid $p$-adic curves and formal fibres of $p$-adic curvesMay 12 2016Jul 17 2016We prove that the geometric etale fundamental group of a (geometrically connected) rigid smooth $p$-adic affinoid curve (resp. of a formal fibre of a $p$-adic curve) is a direct factor of a certain profinite free group. We also prove that the maximal ... More
The nuclear quadrupole moment mesured with Nuclear Quadrupole Resonance NQR : Principle and definitionJul 04 2016The nuclear quadruple moment is a fundamental character associated to the nuclei, this moment is related to the not purely spherical distribution in the nuclei, indeed its measure allows us to survey the geometric deformation of the nuclei of its spherical ... More
Effect of Generalized Uncertainty Principle on Main-Sequence Stars and White DwarfsDec 14 2015This paper addresses the effect of generalized uncertainty principle, emerged by a different approaches of quantum gravity within Planck scale, on thermodynamic properties of photon, non-relativistic ideal gases and degenerate fermions. A modification ... More
Iterative Nonlocal Residual ElasticityOct 09 2018Motivated by the existing complications of finding solutions of Eringen nonlocal model, an alternative model is developed here. The new formulation of the nonlocal elasticity is centered upon expressing the dynamic equilibrium requirements based on a ... More
Mode localization phenomenon in microbeams due to surface roughnessMar 07 2018This is the first study on the mode localization phenomenon in microbeams due to surface roughness. A new model for microbeams with rough surfaces is developed. The natural frequencies and mode shapes of cantilever, simple supported, and clamped-clamped ... More
A reduced micromorphic model for multiscale materials and its applications in wave propagationDec 02 2017In this study, a reduced micromorphic model for multiscale materials is developed. In the context of this model, multiscale materials are modeled with deformable microstructures. The deformation energy is formed depending on microstrain and macroscopic ... More
Infeasibility of the nonlocal strain gradient theory for applied PhysicsNov 27 2017In this communication, the feasibility of the nonlocal strain gradient theory for fields of applied mechanics is investigated. It is demonstrated that the nonlocal strain gradient theory is physically incorrect. It is proved that each of the nonlocal ... More
A formula for the numerical range of an elementary operator on C*-algebraApr 08 2015Let $\A$ be a $C^*-$algebra with unit element $1$ and unitary group $U.$ Let $a=(a_1, ..., a_k)$ and $b=(b_1, ..., b_k)$ two $k-$tuples of elements in $\A.$ The elementary operator associated to $a$ and $b$ is defined by $ R_{a, b} (x)= \sum_{i=1}^ {k} ... More
Sparse Conformal PredictorsFeb 11 2009Conformal predictors, introduced by Vovk et al. (2005), serve to build prediction intervals by exploiting a notion of conformity of the new data point with previously observed data. In the present paper, we propose a novel method for constructing prediction ... More
Generalized $β$-Gaussian Ensemble Equilibrium measure methodAug 30 2014We investigate $\beta$-Generalized random Hermitian matrices ensemble sometimes called Chiral ensemble. We give global asymptotic of the density of eigenvalues or the statistical density. We investigate general method names as equilibrium measure method. ... More
Density of Positive Eigenvalues of the Generalized Gaussian Unitary EnsembleAug 30 2014Jan 26 2015We compute exact asymptotic of the statistical density of random matrices belonging to the Generalized Gaussian orthogonal, unitary and symplectic ensembles such that there no eigenvalues in the interval $[\sigma, +\infty[$. In particular, we show that ... More
A probabilistic analysis of a leader election algorithmFeb 09 2007A {\em leader election} algorithm is an elimination process that divides recursively into tow subgroups an initial group of n items, eliminates one subgroup and continues the procedure until a subgroup is of size 1. In this paper the biased case is analyzed. ... More
Numerical methods for optimal insurance demand under marked point processes shocksSep 03 2010This paper deals with numerical solutions of maximizing expected utility from terminal wealth under a non-bankruptcy constraint. The wealth process is subject to shocks produced by a general marked point process. The problem of the agent is to derive ... More
Necessary and sufficient conditions for exponential stabilization of systems affine in controlsOct 08 2017This paper provides necessary and sufficient conditions for exponential stabilization of distributed systems affine in control, evolving in a Banach state space, by means of constant controls. An explicit estimate of the convergence speed is obtained ... More
Optimal insurance demand under marked point processes shocks: a dynamic programming duality approachAug 30 2010We study the stochastic control problem of maximizing expected utility from terminal wealth under a non-bankruptcy constraint. The wealth process is subject to shocks produced by a general marked point process. The problem of the agent is to derive the ... More
On subdirect factors of a projective module and applications to system theoryMay 01 2013Sep 06 2013We extend a result of Napp Avelli, van der Put, and Rocha with a system-theoretic interpretation to the noncommutative case: Let P be a f.g. projective module over a two-sided Noetherian domain. If P admits a subdirect product structure of the form P ... More
Performance evaluation of parallel TCP, and its impact on bandwidth utilization and fairness in high-BDP networks based on test-bedOct 27 2015After the presence of high Bandwidth-Delay Product (high-BDP) networks, many researches have been conducted to prove either the existing TCP variants can achieve an excellent performance without wasting the bandwidth of these networks or not. In this ... More
Large Deviations Theorems in Nonparametric Regression on Functional DataFeb 18 2009Jun 10 2011In this paper we prove large deviations principles for the Nadaraya-Watson estimator of the regression of a real-valued variable with a functional covariate. Under suitable conditions, we show pointwise and uniform large deviations theorems with good ... More
On the existence of a torsor structure for Galois coversMar 23 2004Let $R$ be a complete discrete valuation ring with residue characteristic $p>0$. In this note we give an example of a Galois cover $f:Y\to X$ between flat and normal formal $R$-schemes of finite type which is \'etale above the generic fibre of $X$ such ... More
On the Riemann-Lie algebras and Riemann-Poisson Lie groupsOct 18 2003A Riemann-Lie algebra is a Lie algebra $\cal G$ such that its dual ${\cal G}^*$ carries a Riemannian metric compatible (in the sense introduced by th author in C. R. Acad. Paris, t. 333, S\'erie I, (2001) 763-768) with the canonical linear Poisson sructure ... More
Weight reduction for cohomological mod $p$ modular forms over imaginary quadratic fieldsAug 23 2011Let $ F$ be an imaginary quadratic field and $\mathcal{O}$ its ring of integers. Let $ \mathfrak{n} \subset \mathcal{O} $ be a non-zero ideal and let $ p> 5$ be a rational inert prime in $F$ and coprime with $\mathfrak{n}$. Let $ V$ be an irreducible ... More
LH*TH: New fast Scalable Distributed Data Structures (SDDS)Dec 14 2014Proposed in 1993 the Scalable Distributed Data Structures (SDDSs) became a profile of basis for the data management on Multi computer. In this paper we propose an organization of a LH* bucket based on the trie hashing in order to improve times of different ... More
Product of Non-Hermitian Random MatricesJan 24 2016Jan 27 2016We investigate the product of $n$ complex non-Hermitian, independent random matrices, each of size $N\times N$ in the class of elliptic matrices, with independent identically distributed entries. The joint probability distribution of the complex eigenvalues ... More
A local-global principle for torsors under geometric prosolvable fundamental groupsOct 23 2015We prove a local-global principle for torsors under the prosolvable geometric fundamental group of a hyperbolic curve over a number field.
Skew polynomial rings over abelian and idempotent reflexive ringsMar 11 2015Sep 09 2015Let $R$ be a ring and $\sigma$ an endomorphism of $R$. In this note, we study skew polynomial rings and skew power series rings over idempotent reflexive rings and abelian rings. Also, we introduce the concept of right (resp., left) $\sigma$-idempotent ... More
Multicasting over Overlay Networks A Critical ReviewNov 09 2012Multicasting technology uses the minimum network resources to serve multiple clients by duplicating the data packets at the closest possible point to the clients. This way at most only one data packets travels down a network link at any one time irrespective ... More
Etale fundamental groups of affinoid $p$-adic curvesMay 12 2016Aug 26 2017We prove that the geometric etale fundamental group of a (geometrically connected) rigid smooth $p$-adic affinoid curve is a semi-direct factor of a certain profinite free group. We also prove that the maximal pro-$p$ (resp. maximal prime-to-$p$) quotient ... More
A Practical Scheme for Two-Party Private Linear Least SquaresJan 26 2019Privacy-preserving machine learning is learning from sensitive datasets that are typically distributed across multiple data owners. Private machine learning is a remarkable challenge in a large number of realistic scenarios where no trusted third party ... More
Sharp optimal recovery in the Two Component Gaussian Mixture ModelDec 19 2018Feb 08 2019In this paper, we study the problem of clustering in the Two component Gaussian mixture model when the centers are separated by some $\Delta>0$. We present a non-asymptotic lower bound for the corresponding minimax Hamming risk improving on existing results. ... More
A Message-Passing Algorithm for Graph IsomorphismApr 03 2017A message-passing procedure for solving the graph isomorphism problem is proposed. The procedure resembles the belief-propagation algorithm in the context of graphical models inference and LDPC decoding. To enable the algorithm, the input graphs are transformed ... More
Concerns about the reliability of publicly available SNe Ia dataMay 01 2019I highlight several concerns regarding the consistency of Type Ia supernova data in the publicly available Pantheon and JLA compilations. The measured heliocentric redshifts (zhel) of $\sim$150 SNe Ia as reported in the Pantheon catalogue are significantly ... More
Toeplitz Quantization and ConvexitySep 14 2017Let $T^m_f $ be the Toeplitz quantization of a real $ C^{\infty}$ function defined on the sphere $ \mathbb{CP}(1)$. $T^m_f $ is therefore a Hermitian matrix with spectrum $\lambda^m= (\lambda_0^m,\ldots,\lambda_m^m)$. Schur's theorem says that the diagonal ... More
On performance of nano-resonators produced by magnetron sputtering depositionDec 02 2017Magnetron sputtering is a perfect technique for processing nanomaterials for engineering and medical applications. A material can be processed with specific mechanical properties, microstructure, and surface texture by controlling the parameters of magnetron ... More
On Skew Polynomials over p.q.-Baer and p.p.-ModulesJan 27 2011Apr 15 2011Let $M_R$ be a module and $\sigma$ an endomorphism of $R$. Let $m\in M$ and $a\in R$, we say that $M_R$ satisfies the condition $\mathcal{C}_1$ (respectively, $\mathcal{C}_2$), if $ma=0$ implies $m\sigma(a)=0$ (respectively, $m\sigma(a)=0$ implies $ma=0$). ... More
Dual divergences estimation for censored survival dataJun 14 2011This paper is devoted to robust estimation based on dual divergences estimators for parametric models in the framework of right censored data. We give limit laws of the proposed estimators and examine their asymptotic properties through a simulation study. ... More
Regularization with the Smooth-Lasso procedureMar 05 2008Oct 15 2008We consider the linear regression problem. We propose the S-Lasso procedure to estimate the unknown regression parameters. This estimator enjoys sparsity of the representation while taking into account correlation between successive covariates (or predictors). ... More
Anneaux d'Endomorphismes de modules de Drinfeld de rang 2Jun 17 2006We discuss many analogy points with the elliptic curves. more precisely, we study the characteristic polynomial of a Drinfeld module of rank 2 and use it to calculate the number of isogeny classes for such modules.
Product of Independent Cauchy-Lorentz Random MatricesDec 27 2015Jan 13 2016We investigate the product of $n$ complex non-Hermitian, independent random matrices, each of size $N_i\times N_{i+1}$ $(i=1,...,n)$, with independent identically distributed Cauchy entries (Cauchy-Lorentz matrices). The joint probability distribution ... More
Mesure et action des i-permutations sur les multigraphes multicolores finis et inifinisJun 30 2015Jul 02 2015Among other results, the purpose of this article is to show the existence of an $\mathbb{R}$-space-vector with basis $\omega^i_j $, $i, j$ are integers such that every graph with n vertex $n \geq 3$ is the vector: $$\mathcal{V}(n) = \sum_{j=0}^{n-1} {\alpha^{n-1}_j} ... More
Disjunctive normal forms for any class of Boolean algebras with operatorsNov 11 2015Disjunctive normal forms can provide elegant and constructive proofs of many standard results such as completeness, decidability and so on. They were also used to show non atomicity of some free algebras of specific Boolean algebras with operators. Here, ... More
Sur le produit tensoriel d'algèbresApr 19 2013Oct 03 2013Let $\sigma:A\rightarrow B$ and $\rho:A\rightarrow C$\ be two homomorphisms of noetherian rings such that $B\otimes_{A}C$ is a noetherian ring. we show that if $\sigma$ is a regular (resp. complete intersection, resp. Gorenstein, resp. Cohen-Macaulay, ... More
Distributivity in Quandles and QuasigroupsSep 28 2012Distributivity in algebraic structures appeared in many contexts such as in quasigroup theory, semigroup theory and algebraic knot theory. In this paper we give a survey of distributivity in quasigroup theory and in quandle theory.
Poisson structures compatible with the canonical metric on $\reel^3$Feb 13 2004In this Note, we will characterize the Poisson structures compatible with the canonical metric of $\reel^3$. We will also give some relvant examples of such structures. The notion of compatibility used in this Note was introduced and studied by the author ... More
Real time Detection of Lane Markers in Urban StreetsNov 26 2014We present a robust and real time approach to lane marker detection in urban streets. It is based on generating a top view of the road, filtering using selective oriented Gaussian filters, using RANSAC line fitting to give initial guesses to a new and ... More
Modelling the spreading of large-scale wildland firesFeb 25 2014Feb 05 2016The objective of the present study is twofold. First, the last developments and validation results of a hybrid model designed to simulate fire patterns in heterogeneous landscapes are presented. The model combines the features of a stochastic small-world ... More
A Novel Deep Transfer Learning Method for Detection of Myocardial InfarctionJun 22 2019Myocardial infarction (MI), also known as a cardiac attack, is one of the common cardiac disorders occurs when one or more coronary arteries are blocked. Hence, early detection of MI is critical for the reduction of the rising of the death rate. The cardiologists ... More
Poisson manifolds with compatible pseudo-metric and pseudo-Riemannian Lie algebrasJun 10 2002The notion of Poisson manifold with compatible pseudo-metric was introduced by the author in [1]. In this paper, we introduce a new class of Lie algebras which we call a pseudo-Rieamannian Lie algebras. The two notions are strongly related: we prove that ... More
Short note on an open problemApr 26 2018In this work, we investigate a problem posed by Feng Qi and Bai-Ni Guo in their paper Complete monotonicities of functions involving the gamma and digamma functions.
Magnetic Transport in Spin Antiferromagnets for Spintronics ApplicationsMay 17 2017Oct 15 2017Had magnetic monopoles been ubiquitous as electrons are, we would probably have had a different form of matter, and power plants based on currents of these magnetic charges would have been a familiar scene of modern technology. Magnetic dipoles do exist, ... More
A Self-Adaptive Network Protection SystemMay 08 2014Aug 22 2015In this treatise we aim to build a hybrid network automated (self-adaptive) security threats discovery and prevention system; by using unconventional techniques and methods, including fuzzy logic and biological inspired algorithms under the context of ... More
Heterogeneous MPSoCs for Mixed Criticality Systems: Challenges and OpportunitiesJun 23 2017Due to their cost, performance, area, and energy efficiency, MPSoCs offer appealing architecture for emerging mixed criticality systems (MCS) such as driverless cars, smart power grids, and healthcare devices. Furthermore, heterogeneity of MPSoCs presents ... More
Constrained Eigenvalues Density of Invariant Random Matrices EnsemblesSep 12 2015Sep 22 2015We compute exact asymptotic of the statistical density of random matrices belonging to invariant random matrices ensemble (RMT) orthogonal, unitary and symplectic ensembles, where all its eigenvalues lie within the interval $[\sigma, +\infty[$ or $]-\infty,\tau]$ ... More
Asymptotic density of zeros of half range generalized Hermite polynomialsNov 25 2014We investigate the global density of zeros of generalized Hermite orthogonal polynomials, subject to certain truncated conditions on its weight. We shall given explicitly the global density of zeros under some asymptotic conditions on the weight. Moreover ... More
Riemannian Geometry of Lie AlgebroidsJun 21 2008Aug 29 2008We introduce Riemannian Lie algebroids as a generalization of Riemannian manifolds and we show that most of the classical tools and results known in Riemannian geometry can be stated in this setting. We give also some new results on the integrability ... More
Modelling and Analysing Behaviours and Emotions via Complex User InteractionsFeb 20 2019Over the past 15 years, the volume, richness and quality of data collected from the combined social networking platforms has increased beyond all expectation, providing researchers from a variety of disciplines to use it in their research. Perhaps more ... More
Spectral Filtrations via Generalized MorphismsApr 01 2009Apr 30 2009This paper introduces a reformulation of the classical convergence theorem for spectral sequences of filtered complexes which provides an algorithm to effectively compute the induced filtration on the total (co)homology, as soon as the complex is of finite ... More
Fibré vectoriel de 0-corrélation pondéré sur l'espace $P^{2n+1}$Aug 07 2015We study in this paper a new family of stable algebraic symplectic vector bundles of rank $ 2n $ on the complex projective space $P^{2n+1}$ whose classical null correlation bundles belongs. We show that these bundles are invariant under a miniversal deformation. ... More
Riemann Poisson manifolds and Kähler-Riemann foliationsNov 03 2002Riemann Poisson manifolds were introduced by the author in [1] and studied in more details in [2]. K\"ahler-Riemann foliations form an interesting subset of the Riemannian foliations with remarkable properties (see [3]). In this paper we will show that ... More
Finiteness of real structures on KLT Calabi-Yau regular smooth pairs of dimension 2Feb 28 2017In this article, we prove that a smooth projective complex surface $X$ which is regular (i.e. such that $h^1(X,\mathcal O_X)=0$) and which has a $\mathbb{R}$-divisor $\Delta$ such that $(X,\Delta)$ is a KLT Calabi-Yau pair has finitely many real forms ... More
Bialgebra of specified graphs and external structuresJun 18 2013Jul 15 2014We construct a Hopf algebra structure on the space of specified Feynman graphs of a quantum field theory. We introduce a convolution product and a semigroup of characters of this Hopf algebra with values in some suitable commutative algebra taking momenta ... More
Shuffle quadri-algebra and concatenationJul 12 2017Oct 16 2018In this article, we study the shuffle quadri-algebra H. We prove the existence of some relations between quadri-algebra laws which constitute shuffle product, the concatenation product and the deconcatenation coproduct. We also show that the underlying ... More
Système d'indexation et de recherche de vidéo intégrant un système gestuel pour les personnes handicapéesApr 24 2019The amount of audio-visual information has increased dramatically with the advent of High Speed Internet. Furthermore, technological advances in recent years in the field of information technology, have simplified the use of video data in various fields ... More
Implementation of Kalman Filter with Python LanguageApr 02 2012In this paper, we investigate the implementation of a Python code for a Kalman Filter using the Numpy package. A Kalman Filtering is carried out in two steps: Prediction and Update. Each step is investigated and coded as a function with matrix input and ... More
An Insight View of Kernel Visual Debugger in System Boot upNov 20 2012For many years, developers could not figure out the mystery of OS kernels. The main source of this mystery is the interaction between operating systems and hardware while system's boot up and kernel initialization. In addition, many operating system kernels ... More
Theory of the Magnetic Resonance for the High-$T_C$ Copper-Oxide SuperconductorsMar 16 2014Apr 16 2014The magnetic response expected from a state characterized by rotating antiferromagnetism in a neutron-scattering experiment is calculated. We predict the occurrence of a peak at the frequency of the rotation of the rotating antiferromagnetic order parameter. ... More
Reuse of existing applications during the development of Enterprise Portals integrating Web ServicesDec 01 2013During these last years, the use of the web technologies in the enterprises becomes an essential factor to define a new business model. Among these technologies, web services and enterprise portals have gathered to integrate existing heterogeneous systems ... More
Applying deep learning to classify pornographic images and videosNov 28 2015It is no secret that pornographic material is now a one-click-away from everyone, including children and minors. General social media networks are striving to isolate adult images and videos from normal ones. Intelligent image analysis methods can help ... More
Testing for change in mean of heteroskedastic time seriesFeb 26 2011In this paper we consider a Lagrange Multiplier-type test (LM) to detect change in the mean of time series with heteroskedasticity of unknown form. We derive the limiting distribution under the null, and prove the consistency of the test against the alternative ... More
On the implications of a dilaton in gauge theorySep 08 2007Some recent work on the implications of a dilaton in 4d gauge theories are revisited. In part I of this paper we see how an effective dilaton coupling to gauge kinetic term provides a simple attractive mechanism to generate confinement. In particular, ... More
Confinement Driven by Scalar Field in 4d Non Abelian Gauge TheoriesSep 03 2006We review some of the most recent work on confinement in 4d gauge theories with a massive scalar field (dilaton). Emphasis is put on the derivation of confining analytical solutions to the Coulomb problem versus dilaton effective couplings to gauge terms. ... More
Dual $φ$-divergences estimation in normal modelsAug 15 2011A class of robust estimators which are obtained from dual representation of $\phi$-divergences, are studied empirically for the normal location model. Members of this class of estimators are compared, and it is found that they are efficient at the true ... More
On Bayesian Estimation via DivergencesDec 26 2011In this Note we introduce a new methodology for Bayesian inference through the use of $\phi$-divergences and the duality technique. The asymptotic laws of the estimates are established.
Forward-Backward Charge Asymmetry in Z Production at the LHCMay 25 2007We present here a study on the determination of the effective weak mixing angle, $\sin^{2}\theta^{lept}_{eff}$ from the measurement of the Forward-Backward Asymmetry with a high a statistical precision, 10$^{-4}$. To reach such a precision it is necessary ... More
Compatibility betwenn pseudo-riemannian structure and Poisson structureOct 11 2001We will introduce two notions of compatibility bettwen pseudo-Riemannian metric and Poisson structure using the notion of contravariant connection introduced by Fernandes R. L., we will study some proprities of manifold endowed with such compatible structures ... More
Unitaire multiplicatif K-moyennableJun 21 2002Nous generalisons la theorie de la K-moyennabilite au cas d'un unitaire multiplicatif regulier V. Nous montrons que si (H,V,U) est un systeme de Kac K-moyennable, alors pour toute S-algebre A, les algebres $ A\times_{m}\hat S$ (produit croise maximal) ... More
Spectra and symmetric eigentensors of the Lichnerowicz Laplacian on $P^n(\comp)$Dec 17 2007We compute the eigenvalues with multiplicities of the Lichnerowicz Laplacian acting on the space of complex symmetric covariant tensor fields on the complex projective space $P^n(\comp)$. The spaces of symmetric eigentensors are explicitly given.
An iterative nonlocal residual constitutive model for nonlocal elasticityMar 23 2018Recently, it was claimed that the two-phase local/nonlocal constitutive models give well-posed nonlocal field problems and eliminates the ill-posedness of the fully nonlocal constitutive models. In this study, it is demonstrated that, both, the fully ... More
Correction of local-linear elasticity for nonlocal residuals: Application to Euler-Bernoulli beamsNov 30 2017Complications exist when solving the field equation in the nonlocal field. This has been attributed to the complexity of deriving explicit forms of the nonlocal boundary conditions. Thus, the paradoxes in the existing solutions of the nonlocal field equation ... More
Influence of surface integrity on geometry and dynamics of functionally graded nanobeamsMar 11 2018In this study effects of surface integrity on the mechanics of functionally graded (FG) nanobeams are investigated. This study reports the changes in the geometry and dynamics of FG nanobeams because of changes in their surface textures and/or surface ... More