Results for "Mahmoud Al-Faris"

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Multi-View Region Adaptive Multi-temporal DMM and RGB Action RecognitionApr 12 2019Human action recognition remains an important yet challenging task. This work proposes a novel action recognition system. It uses a novel Multiple View Region Adaptive Multi-resolution in time Depth Motion Map (MV-RAMDMM) formulation combined with appearance ... More
Algebraic String OperationsMay 30 2006We first discuss how open/closed chord diagrams, both with and without marked points, act on appropriate Hochschild complexes possibly coupled with the two-sided cobar complex. Then, in the main part of the paper, we introduce the notion of a V_k-algebra ... More
Considering Race a Problem of Transfer LearningDec 12 2018As biometric applications are fielded to serve large population groups, issues of performance differences between individual sub-groups are becoming increasingly important. In this paper we examine cases where we believe race is one such factor. We look ... More
The colimit of an $\infty$-local system as a twisted tensor productMay 03 2018Apr 26 2019We describe several equivalent models for the infinity-category of infinity-local systems of chain complexes over a space using the framework of quasi-categories. We prove that the given models are equivalent as infinity-categories by exploiting the relationship ... More
Algebraic structure of semigroup compactifications: Pym's and Veech's Theorems and strongly prime pointsSep 27 2017The spectrum of an admissible subalgebra $\mathscr{A}(G)$ of $\mathscr{LUC}(G)$, the algebra of right uniformly continuous functions on a locally compact group $G$, constitutes a semigroup compactification $G^\mathscr{A}$ of $G$. In this paper we analyze ... More
On Some Asymptotic Properties and an Almost Sure Approximation of the Normalized Inverse-Gaussian ProcessJun 28 2012In this paper, we present some asymptotic properties of the normalized inverse-Gaussian process. In particular, when the concentration parameter is large, we establish an analogue of the empirical functional central limit theorem, the strong law of large ... More
The Dirichlet Process with Large Concentration ParameterSep 24 2011Dec 13 2011Ferguson's Dirichlet process plays an important role in nonparametric Bayesian inference. Let $P_a$ be the Dirichlet process in $\mathbb{R}$ with a base probability measure $H$ and a concentration parameter $a>0.$ In this paper, we show that $\sqrt {a} ... More
On Simulations from the Two-Parameter Poisson-Dirichlet Process and the Normalized Inverse-Gaussian ProcessSep 24 2012In this paper, we develop simple, yet efficient, procedures for sampling approximations of the two-Parameter Poisson-Dirichlet Process and the normalized inverse-Gaussian process. We compare the efficiency of the new approximations to the corresponding ... More
On a Rapid Simulation of the Dirichlet ProcessJul 04 2011Jan 25 2012We describe a simple and efficient procedure for approximating the L\'evy measure of a $\text{Gamma}(\alpha,1)$ random variable. We use this approximation to derive a finite sum-representation that converges almost surely to Ferguson's representation ... More
On Approximations of the Beta Process in Latent Feature ModelsNov 13 2014The beta process has recently been widely used as a nonparametric prior for different models in machine learning, including latent feature models. In this paper, we prove the asymptotic consistency of the finite dimensional approximation of the beta process ... More
Reflections on Monadic LensesJan 11 2016Bidirectional transformations (bx) have primarily been modeled as pure functions, and do not account for the possibility of the side-effects that are available in most programming languages. Recently several formulations of bx that use monads to account ... More
EMFET: E-mail Features Extraction ToolNov 22 2017EMFET is an open source and flexible tool that can be used to extract a large number of features from any email corpus with emails saved in EML format. The extracted features can be categorized into three main groups: header features, payload (body) features, ... More
Systems of Cosserat--Zhilin in Newtonian MechanicsFeb 26 2016Mechanical systems of Cosserat--Zhilin are introduced as the main object of Newtonian (non--relativistic) mechanics on the base of new notions of vector calculus - sliders and screw measures (bi-measures). The differential equations of motion are derived ... More
On Foundations of Newtonian MechanicsDec 16 2010Mar 27 2011Being based on V. Konoplev's axiomatic approach to continuum mechanics, the paper broadens its frontiers in order to bring together continuum mechanics with classical mechanics in a new theory of mechanical systems. There are derived motion equations ... More
Gravitational Yang-Lee Model. Four Point FunctionApr 22 2006The four-point perturbative contribution to the spherical partition function of the gravitational Yang-Lee model is evaluated numerically. An effective integration procedure is due to a convenient elliptic parameterization of the moduli space. At certain ... More
On the Three-point Function in Minimal Liouville GravityMay 06 2005The problem of the structure constants of the operator product expansions in the minimal models of conformal field theory is revisited. We rederive these previously known constants and present them in the form particularly useful in the Liouville gravity ... More
On the Thermodynamic Bethe Ansatz Equation in Sinh-Gordon ModelMay 19 2000Two implicit periodic structures in the solution of sinh-Gordon thermodynamic Bethe ansatz equation are considered. The analytic structure of the solution as a function of complex $\theta$ is studied to some extent both analytically and numerically. The ... More
Contact Homology of Orbit Complements and Implied ExistenceDec 07 2010Sep 21 2011For Reeb vector fields on closed 3-manifolds, cylindrical contact homology is used to show that the existence of a set of closed Reeb orbit with certain knotting/linking properties implies the existence of other Reeb orbits with other knotting/linking ... More
A Novel Hybrid Fast Switching Adaptive No Delay Tanlock Loop Frequency SynthesizerJul 18 2016Jul 23 2016This paper presents a new fast switching hybrid frequency synthesizer with wide locking range. The hybrid synthesizer is based on the tanlock loop with no delay block (NDTL) and is capable of integer as well as fractional frequency division. The system ... More
Perturbed Conformal Field Theory on Fluctuating SphereAug 06 2005General properties of perturbed conformal field theory interacting with quantized Liouville gravity are considered in the simplest case of spherical topology. We discuss both short distance and large distance asymptotic of the partition function. The ... More
Cylindrical Contact Homology on Complements of Reeb OrbitsMar 16 2010Sep 21 2011Let $V$ be a closed 3-manifold with a contact form $\lambda$, and let $L$ be a link consisting of closed orbits for the Reeb vector field of $\lambda$. We study the problem of defining cylindrical contact homology on the non-compact manifold $V \backslash ... More
Scaling Lee-Yang Model on a Sphere. I. Partition FunctionSep 09 2001Some general properties of perturbed (rational) CFT in the background metric of symmetric 2D sphere of radius $R$ are discussed, including conformal perturbation theory for the partition function and the large $R$ asymptotic. The truncated conformal space ... More
Two-sample Bayesian nonparametric goodness-of-fit testNov 13 2014May 07 2015In recent years, Bayesian nonparametric statistics has gathered extraordinary attention. Nonetheless, a relatively little amount of work has been expended on Bayesian nonparametric hypothesis testing. In this paper, a novel Bayesian nonparametric approach ... More
Gröbner Bases under Composition, Survey paperJan 30 2018This paper is a survey on the study of the behaviour of the composition of polynomials on the computation of Gr\"obner bases. This survey brings together some works published between 1995 and 2007. The authors of these papers gave answers to some questions ... More
Data Warehouse Success and Strategic Oriented Business Intelligence: A Theoretical FrameworkJul 28 2013With the proliferation of the data warehouses as supportive decision making tools, organizations are increasingly looking forward for a complete data warehouse success model that would manage the enormous amounts of growing data. It is therefore important ... More
Thinging Machine applied to Information LeakageNov 30 2018This paper introduces a case study that involves data leakage in a bank applying the so-called Thinging Machine (TM) model. The aim is twofold: (1) Presenting a systematic conceptual framework for the leakage problem that provides a foundation for the ... More
Higher Equations of Motion in Liouville Field TheoryDec 23 2003An infinite set of operator-valued relations in Liouville field theory is established. These relations are enumerated by a pair of positive integers $(m,n)$, the first $(1,1)$ representative being the usual Liouville equation of motion. The relations ... More
Painleve III and 2D PolymersSep 19 1994Recently the scaling function of the dilute non-contractible self-avoiding 2D polymer loop on a cylinder was related to the Painleve III transcendent. Using the perturbation theory, the thermidynamic Bethe ansatz and numerical calculations we argue a ... More
Restricting Semistable Bundles on the Projective Plane to ConicsOct 06 2003Mar 26 2004We study the restrictions of rank 2 semistable vector bundles E on P^2 to conics. A Grauert-Mulich type theorem on the generic splitting is proven. The jumping conics are shown to have the scheme structure of a hypersurface J_{2} in P^5 of degree c_{2}(E) ... More
Arabic Text Diacritization Using Deep Neural NetworksApr 25 2019Diacritization of Arabic text is both an interesting and a challenging problem at the same time with various applications ranging from speech synthesis to helping students learning the Arabic language. Like many other tasks or problems in Arabic language ... More
On the Use of Emojis to Train Emotion ClassifiersFeb 24 2019Feb 26 2019Nowadays, the automatic detection of emotions is employed by many applications in different fields like security informatics, e-learning, humor detection, targeted advertising, etc. Many of these applications focus on social media and treat this problem ... More
Rational homotopy equivalences and singular chainsJun 09 2019Bousfield and Kan's $\mathbb{Q}$-completion and fiberwise $\mathbb{Q}$-completion of spaces lead to two different approaches to the rational homotopy theory of non-simply connected spaces. In the first approach, a map is a weak equivalence if it induces ... More
Algebraic string bracket as a Poisson bracketJul 15 2008Sep 04 2008In this paper we construct a Lie algebra representation of the algebraic string bracket on negative cyclic cohomology of an associative algebra with appropriate duality. This is a generalized algebraic version of the main theorem of [AZ] which extends ... More
Unified Analysis of Cooperative Spectrum Sensing over Composite and Generalized Fading ChannelsMar 04 2015In this paper, we investigate the performance of cooperative spectrum sensing (CSS) with multiple antenna nodes over composite and generalized fading channels. We model the probability density function (PDF) of the signal-to-noise ratio (SNR) using the ... More
Minimal Geometry for Valley Filtering in GrapheneJun 14 2017Oct 25 2017The possibility to effect valley splitting of an electronic current in graphene represents the essential component in the new field of valleytronics in such two-dimensional materials. Based on a symmetry analysis of the scattering matrix, we show that ... More
Trampoline metamaterial: Local resonance enhancement by springboardsMay 28 2013Jul 25 2013We investigate the dispersion characteristics of locally resonant elastic metamaterials formed by the erection of pillars on the solid regions in a plate patterned by a periodic array of holes. We show that these solid regions effectively act as springboards ... More
IRS for Computer Character Sequences Filtration: a new software tool and algorithm to support the IRS at tokenization processMar 02 2013Tokenization is the task of chopping it up into pieces, called tokens, perhaps at the same time throwing away certain characters, such as punctuation. A token is an instance of token a sequence of characters in some particular document that are grouped ... More
Unified Analysis of SWIPT Relay Networks with Noncoherent ModulationFeb 13 2017Aug 22 2017Simultaneous wireless information and power transfer (SWIPT) relay networks represent a paradigm shift in the development of wireless networks, enabling simultaneous radio frequency (RF) energy harvesting (EH) and information processing. Different from ... More
A detailed comparative study of open source deep learning frameworksFeb 25 2019Deep Learning (DL) is one of the hottest trends in machine learning as DL approaches produced results superior to the state-of-the-art in problematic areas such as image processing and natural language processing (NLP). To foster the growth of DL, several ... More
Conceptual Modeling of a Procurement Process: Case study of RFP for Public Key InfrastructureDec 04 2018Procurement refers to a process resulting in delivery of goods or services within a set time period. The process includes aspects of purchasing, specifications to be met, and solicitation notifications as in the case of Request For Proposals (RFPs). Typically ... More
Security Performance Analysis of Physical Layer over Fisher-Snedecor $\mathcal{F}$ Fading ChannelsMay 19 2018In this letter, the performance analysis of physical layer security over Fisher-Snedecor $\mathcal{F}$ fading channels is investigated. In particular, the average secrecy capacity (ASC), the secure outage probability (SOP), the lower bound of the SOP ... More
Effective throughput of MISO systems over $κ-μ$ shadowed fading channels: MGF based analysisApr 29 2018The effective throughput of multiple-input single-output (MISO) wireless communication systems over $\kappa-\mu$ shadowed fading channels is analysed. To obtain exact closed-from expression, the moment generating function (MGF) of the instantaneous signal ... More
Automatic Reference Models Development: A FrameworkJan 29 2014Software reuse allows the software industry to simultaneously reduce development cost and improve product quality. Reuse of early-stage artifacts has been acknowledged to be more beneficial than reuse of later-stage artifacts. In this regard, early-stage ... More
An Axiomatization of Naive DiversificationNov 04 2016A widely applied diversification paradigm is the naive diversification choice heuristic. It stipulates that an economic agent allocates equal decision weights to given choice alternatives independent of their individual characteristics. This article provides ... More
The oscillatory distribution of distances in random triesMay 12 2005We investigate \Delta_n, the distance between randomly selected pairs of nodes among n keys in a random trie, which is a kind of digital tree. Analytical techniques, such as the Mellin transform and an excursion between poissonization and depoissonization, ... More
A Physical Model for the Spectral-Timing Properties of Accreting Black HolesMar 13 2018Aug 30 2018We develop new techniques to deconvolve the radial structure of the X-ray emission region in the bright low/hard state of the black hole Cygnus X-1 using both spectral and timing data in the 3-35~keV range. The spectrum at these energies is dominated ... More
Low-loss waveguides on Y-cut thin film lithium niobate: towards acousto-optic applicationsMar 07 2019We investigate the dependence of photonic waveguide propagation loss on the thickness of the buried oxide layer in Y-cut lithium niobate on insulator substrate to identify trade-offs between optical losses and electromechanical coupling of surface acoustic ... More
Privacy-Preserving and Collusion-Resistant Charging Coordination Schemes for Smart GridMay 12 2019Jun 05 2019Energy storage units (ESUs) including EVs and home batteries enable several attractive features of the modern smart grids such as effective demand response and reduced electric bills. However, uncoordinated charging of ESUs stresses the power system. ... More
Using Periodicity to Obtain Partition CongruencesSep 12 2016Sep 14 2016In this paper, we generalize recent work of Mizuhara, Sellers, and Swisher that gives a method for establishing restricted plane partition congruences based on a bounded number of calculations. Using periodicity for partition functions, our extended technique ... More
First bounds on the very high energy gamma-ray emission from Arp 220Nov 26 2006Using the Major Atmospheric Gamma Imaging Cherenkov Telescope (MAGIC), we have observed the nearest ultra-luminous infrared galaxy Arp 220 for about 15 hours. No significant signal was detected within the dedicated amount of observation time. The first ... More
Studies of the Decay B+- -> D_CP K+-Jul 03 2002We report studies of the decay B+- -> D_CP K+-, where D_CP denotes neutral D mesons that decay to CP eigenstates. The analysis is based on a 29.1/fb data sample of collected at the \Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric ... More
Improved Measurement of the Probability for Gluon Splitting into b bbar in Z0 DecaysFeb 03 2001We have measured gluon splitting into bottom quarks, g -> b bbar, in hadronic Z0 decays collected by SLD between 1996 and 1998. The analysis was performed by looking for secondary bottom production in 4-jet events of any primary flavor. 4-jet events were ... More
Measurement of Longitudinal Spin Asymmetries From $W\rightarrow e$ Boson Decay in Polarized pp Collisions at $\sqrt{s}=500$ GeV at RHIC-PHENIXDec 21 2010We report the measurement of the parity violating single spin asymmetries for inclusive high transverse momentum electrons and positrons in polarized $p+p$ collisions at a center of mass energy of $\sqrt{s}=500$ GeV with the PHENIX detector at RHIC. These ... More
Measurement of the Top Quark Mass in ppbar Collisions at sqrt(s) = 1.96 TeV using the Decay Length TechniqueDec 24 2006We report the first measurement of the top quark mass using the decay length technique in ppbar collisions at a center-of-mass energy of 1.96 TeV. This technique uses the measured flight distance of the b hadron to infer the mass of the top quark in lepton ... More
Astrophysics of the Knee in the Cosmic Ray Energy SpectrumDec 11 2003A brief review is given on the astrophysics of cosmic rays in the PeV primary energy range, i.e. the region of the knee.
Model of charge transport in Semi-Insulating Undoped GaAs microstrip detectorsSep 29 1995In this paper we present a method for simulating the response of microstrip detectors to minimum ionizing particles, making use of a program for field calculation, a program for carrier drift and SPICE for circuit response. A knowledge of the electric ... More
Khovano Homology and Embedded GraphsNov 13 2009We construct a cobordism group for embedded graphs in two different ways, first by using sequences of two basic operations, called "fusion" and "fission", which in terms of cobordisms correspond to the basic cobordisms obtained by attaching or removing ... More
An Intelligent Fire Alert System using Wireless Mobile CommunicationAug 01 2013The system has come to light through the way of inspiration to develop a compact system, based on the fundamental ideas of safety, security and control. Once this system is installed to operation specifying temperature and smoke threshold, in case of ... More
A Multiresolution Clinical Decision Support System Based on Fractal Model Design for Classification of Histological Brain TumoursDec 25 2015Tissue texture is known to exhibit a heterogeneous or non-stationary nature, therefore using a single resolution approach for optimum classification might not suffice. A clinical decision support system that exploits the subband textural fractal characteristics ... More
Assessment of texture measures susceptibility to noise in conventional and contrast enhanced computed tomography lung tumour imagesDec 25 2015Noise is one of the major problems that hinder an effective texture analysis of disease in medical images, which may cause variability in the reported diagnosis. In this paper seven texture measurement methods (two wavelet, two model and three statistical ... More
On presimplifiable group ringsFeb 13 2014Dec 11 2014A ring A is called presimplifiable if whenever a; b belongs to A and a = ab, then either a = 0 or b is a unit in A. Let A be a commutative ring and G be an abelian torsion group. For the group ring A[G], we prove that A[G] is presimplifiable if and only ... More
Block monotone iterative methods for solving coupled systems of nonlinear elliptic problemsApr 09 2018May 08 2018This paper investigates numerical methods for solving coupled system of nonlinear elliptic problems. We utilize block monotone iterative methods based on Jacobi and Gauss--Seidel methods to solve difference schemes which approximate the coupled system ... More
Existential Ontology and Thinging Modeling in Software EngineeringMar 26 2019This study is a sequel to a previous study entitled Thinging for Software Engineers, which showed that the notion of thing, in contrast to objectification, has some beneficial orientations in modeling. The incorporation of thinging in conceptual modeling ... More
An Algorithm for Computing the Ratliff-Rush ClosureSep 03 2010Let I\subset K[x,y] be a <x,y>-primary monomial ideal where K is a field. This paper produces an algorithm for computing the Ratliff-Rush closure I for the ideal I=<m_0,...,m_{n}> whenever m_{i} is contained in the integral closure of the ideal <x^{a_{n}},y^{b_0}>. ... More
Results on the Ratliff-Rush Closure and the Integral Closedness of Powers of Certain Monomial CurvesSep 03 2010Starting from \cite{Ayy2} we compute the Groebner basis for the defining ideal, P, of the monomial curves that correspond to arithmetic sequences, and then give an elegant description of the generators of powers of the initial ideal of P, inP. The first ... More
Maximal $L^p-L^q$ regularity to the Stokes Problem with Navier boundary conditionsMay 17 2016We prove in this paper some results on the complex and fractional powers of the Stokes operator with slip frictionless boundary conditions involving the stress tensor. This is fundamental and plays an important role in the associated parabolic problem ... More
A Global Attractivity in a Nonmonotone Age-Structured Model with Age Dependent Diffusion and Death RatesSep 09 2017In this paper, we investigated the global attractivity of the positive constant steady state solution of the mature population $w(t,x)$ governed by the age-structured model: \begin{equation*} \left\{\begin{array}{ll} \frac{\partial u}{\partial t}+\frac{\partial ... More
The Ratliff-Rush Closure of Initial Ideals of Certain Prime IdealsNov 19 2004Nov 20 2004We prove that the initial ideal of the defining ideal of a monomial curve that corresponds to an almost arithmetic sequence of positive integers is Ratliff-Rush closed.
A Class of Strongly Homotopy Lie Algebras with Simplified sh-Lie StructuresAug 17 2003It is known that a single mapping defined on one term of a differential graded vector space extends to a strongly homotopy Lie algebra structure on the graded space when that mapping satisfies two conditions. This strongly homotopy Lie algebra is nontrivial ... More
Optimal Strategies for Matching and Retrieval Problems by Comparing CovariatesJul 12 2018Jul 16 2018In many retrieval problems, where we must retrieve one or more entries from a gallery in response to a probe, it is common practice to learn to do by directly comparing the probe and gallery entries to one another. In many situations the gallery and probe ... More
Unified approaches based effective capacity analysis over composite $α-η-μ$/gamma fading channelsApr 24 2018This letter analyses the effective capacity of communications system using unified models. In order to obtain a simple closed-form mathematically tractable expression, two different unified approximate models have been used. The mixture gamma (MG) distribution ... More
Secrecy Analysis of Physical Layer over $κ-μ$ Shadowed Fading ScenariosApr 24 2018In this paper, the secrecy analysis of physical layer when both the main and wiretap channels undergo $\kappa-\mu$ shadowed fading channel is investigated. In particular, the average secrecy capacity (ASC), secure outage probability (SOP), the lower bound ... More
Effective rate analysis over Fluctuating Beckmann fading channelsMar 17 2019The effective rate of Fluctuating Beckmann (FB) fading channel is analysed. The moment generating function (MGF) of the instantaneous signal-to-noise (SNR) is used first to derive the effective rate for arbitrary values of the fading parameters in terms ... More
Performance Analysis of Physical Layer Security over Fluctuating Beckmann Fading ChannelsApr 14 2019In this paper, we analyse the performance of physical layer security over Fluctuating Beckmann (FB) fading channel which is an extended model of both the $\kappa-\mu$ shadowed and the classical Beckmann distributions. Specifically, the average secrecy ... More
Selection Combining Scheme over Non-identically Distributed Fisher-Snedecor $\mathcal{F}$ Fading ChannelsMay 06 2019In this paper, the performance of the selection combining (SC) scheme over Fisher-Snedecor $\mathcal{F}$ fading channels with independent and non-identically distributed (i.n.i.d.) branches is analysed. The probability density function (PDF) and the moment ... More
Method for Improved DL CoMP Implementation in Heterogeneous NetworksAug 30 2016I propose a novel method for practical Joint Processing DL CoMP implementation in LTE/LTE-A systems using a supervised machine learning technique. DL CoMP has not been thoroughly studied in previous work although cluster formation and interference mitigation ... More
Semiparametric two-component mixture models under L-moments constraintsJun 28 2016We propose a structure of a semiparametric two-component mixture model when one component is parametric and the other is defined through L-moments conditions. Estimation of a two-component mixture model with an unknown component is very difficult when ... More
Measurement of b hadron lifetimes in exclusive decays containing a J/psi in p-pbar collisions at sqrt(s)=1.96TeVDec 14 2010Mar 29 2011We report on a measurement of $b$-hadron lifetimes in the fully reconstructed decay modes B^+ -->J/Psi K+, B^0 --> J/Psi K*, B^0 --> J/Psi Ks, and Lambda_b --> J/Psi Lambda using data corresponding to an integrated luminosity of 4.3 ${\rm fb}^{-1}$, collected ... More
An Improved Test of the Flavor Independence of Strong InteractionsMay 20 1998We present an improved comparison of the strong coupling of the gluon to light (q_l=u+d+s), c, and b quarks, determined from multijet rates in flavor-tagged samples of hadronic Z0 decays recorded with the SLC Large Detector at the SLAC Linear Collider ... More
Parametric and semiparametric estimation of mixture models using phi-divergencesNov 22 2016The study of mixture models constitutes a large domain of research in statistics. In the first part of this work, we present phi-divergences and the existing methods which produce robust estimators. We are more particularly interested in the so-called ... More
Scaler Mode Technique for the ARGO-YBJ DetectorJul 14 2008The ARGO-YBJ experiment has been designed to study the Extensive Air Showers with an energy threshold lower than that of the existing arrays by exploiting the high altitude location(4300 m a.s.l. in Tibet, P.R. China) and the full ground plane coverage. ... More
Spin-Peierls Dimerization of a s=1/2 Heisenberg Antiferromagnet on a Square LatticeJun 11 2000Dimerization of a spin-half Heisenberg antiferromagnet on a square lattice is investigated for several possible dimerized configurations, some of which are shown to have lower ground state energies than the others. In particular, the lattice deformations ... More
Liouville field theory on a pseudosphereJan 23 2001Liouville field theory is considered with boundary conditions corresponding to a quantization of the classical Lobachevskiy plane (i.e. euclidean version of $AdS_2$). We solve the bootstrap equations for the out-vacuum wave function and find an infinite ... More
Monte-Carlo Simulation for an Aerogel Cherenkov CounterJul 31 1997We have developed a Monte-Carlo simulation code for an aerogel \v Cerenkov Counter which is operated under a strong magnetic field such as 1.5T. This code consists of two parts: photon transportation inside aerogel tiles, and one-dimensional amplification ... More
A note on affine linksFeb 01 2015We view the $\tilde{A}$-type affine braid group as a subgroup of the $B$-type braid group. We show that the $\tilde{A}$-type affine braid group surjects onto the $A$-type braid group and we detect the kernel of this surjection using Schreier's Theorem. ... More
On the Boundaries of Trust and Security in Computing and Communications SystemsMar 20 2012This article analyzes trust and security in computing and communications systems. While in human-life, trust usually has some kind of commonly understood meaning, in the realm of computing and communications systems, it could be interpreted differently ... More
On the free volume in nuclear multifragmentationOct 13 2000In many statistical multifragmentation models the volume available to the $N$ nonoverlapping fragments forming a given partition is a basic ingredient serving to the simplification of the density of states formula. One therefore needs accurate techniques ... More
Measurement of the Reaction $^{12}C(ν_μ,μ^-) X$ Near ThresholdOct 21 1994Oct 25 1994The reaction $^{12}C(\nu_\mu,\mu^-) X$ has been measured near threshold using a $\pi ^+$ decay-in-flight $\nu_\mu$ beam from the Los Alamos Meson Physics Facility and a massive liquid scintillator neutrino detector (LSND). In the energy region $123.7 ... More
A fractal dimension based optimal wavelet packet analysis technique for classification of meningioma brain tumoursJan 02 2016With the heterogeneous nature of tissue texture, using a single resolution approach for optimum classification might not suffice. In contrast, a multiresolution wavelet packet analysis can decompose the input signal into a set of frequency subbands giving ... More
Using objective words in the reviews to improve the colloquial arabic sentiment analysisSep 25 2017One of the main difficulties in sentiment analysis of the Arabic language is the presence of the colloquialism. In this paper, we examine the effect of using objective words in conjunction with sentimental words on sentiment classification for the colloquial ... More
The information from muon arrival time distributions of high-energy EAS as measured with the KASCADE detectorApr 16 2002Using the facilities of the KASCADE Central Detector EAS muon arrival time distributions, observed with reference to the arrival time of the first locally registered muon, and their correlations with other EAS observables have been experimentally investigated. ... More
A Minimal Groebner Basis for the Defining Ideals of Certain Affine Monomial CurvesNov 17 2004Nov 20 2004In this article we produce Groebner bases for the defining ideal of a monomial curve that corresponds to an almost arithmetic sequence of positive integers, correcting previous work of Sengupta,(2003).
Morphisms, direct sums and tensor products of Kähler-Poisson algebrasJun 11 2019In this paper we introduce the concept of morphisms of K\"ahler-Poisson algebras and study their algebraic properties. In particular, we find conditions, in terms of the metric, for two algebras to be isomorphic, and we introduce direct sums and tensor ... More
Necessary conditions for optimality for stochastic evolution equationsOct 24 2012Aug 27 2013This paper is concerned with providing the maximum principle for a control problem governed by a stochastic evolution system on a separable Hilbert space. In particular, necessary conditions for optimality for this stochastic optimal control problem are ... More
Performance Of A Liquid Argon Time Projection Chamber Exposed To The WANF Neutrino BeamSep 25 2006We present the results of the first exposure of a Liquid Argon TPC to a multi-GeV neutrino beam. The data have been collected with a 50 liters ICARUS-like chamber located between the CHORUS and NOMAD experiments at the CERN West Area Neutrino Facility ... More
The Third Data Release of the Sloan Digital Sky SurveyOct 08 2004This paper describes the Third Data Release of the Sloan Digital Sky Survey (SDSS). This release, containing data taken up through June 2003, includes imaging data in five bands over 5282 deg^2, photometric and astrometric catalogs of the 141 million ... More
Measurement of the Cross Section for Prompt Diphoton Production in p-pbar Collisions at sqrt(s) = 1.96 TeVDec 17 2004Jun 13 2005We report a measurement of the rate of prompt diphoton production in $p\bar{p}$ collisions at $\sqrt{s}=1.96 ~\hbox{TeV}$ using a data sample of 207 pb$^{-1}$ collected with the upgraded Collider Detector at Fermilab (CDF II). The background from non-prompt ... More
Observation of very high energy gamma-rays from the AGN 1ES 2344+514 in a low emission state with the MAGIC telescopeDec 14 2006Jun 05 2007The MAGIC collaboration has observed very high energy gamma ray emission from the AGN 1ES 2344+514. A gamma-ray signal corresponding to an 11 sigma excess and an integral flux of (2.38+-0.30(stat)+-0.70(syst))*10^-11 cm^-2 s^-1 above 200 GeV has been ... More
Observations of Mkn 421 with the MAGIC TelescopeMar 17 2006Mar 20 2007The MAGIC telescope took data of very high energy gamma-ray emission from the blazar Markarian 421 (Mkn 421) between November 2004 and April 2005. We present a combined analysis of data samples recorded under different observational conditions, down to ... More
Nucleon resonance decay by the $K^0Σ^+$ channelFeb 15 2007Hyperon production off the proton in the $K^0 \Sigma^+$ channel has been studied at the tagged photon beam facility at the ELSA electron accelerator in Bonn. This experiment was part of a series of neutral meson production experiments on various targets. ... More