Browsing by Keywords "Correlation methods"
Now showing items 120 of 27

Approximate computation of DFT without performing any multiplications: Application to radar signal processing
(IEEE Computer Society, 2014)In many radar problems it is not necessary to compute the ambiguity function in a perfect manner. In this article a new multiplication free algorithm for approximate computation of the ambiguity function is introduced. All ... 
Automatic multimedia crossmodal correlation discovery
(2004)Given an image (or video clip, or audio song), how do we automatically assign keywords to it? The general problem is to find correlations across the media in a collection of multimedia objects like video clips, with colors, ... 
Automatic Ranking of Retrieval Systems in Imperfect Environments
(2003)The empirical investigation of the effectiveness of information retrieval (IR) systems requires a test collection, a set of query topics, and a set of relevance judgments made by human assessors for each query. Previous ... 
Aviation risk perception: a comparison between experts and novices
(WileyBlackwell Publishing, 2004)This article describes an exploratory investigation of the risk perceptions of experts and novices in relation to helicopter operations, under conditions where the participants are matched on various characteristics ... 
Bound electron pairs in strongly correlated models of hightemperature superconductivity
(Natsional'na Akademiya Nauk Ukrainy, 1998)The groundstate energy of two electrons on a ring is calculated for the onedimensional Hubbard model with positive and negative onsite interaction and for the contraction model with additive and multiplicative interaction ... 
Carcinoma cell line discrimination in microscopic images using unbalanced wavelets
(2012)Cancer cell lines are widely used for research purposes in laboratories all over the world. In this paper, we present a novel method for cancer cell line image classification, which is very costly by conventional methods. ... 
Chiral singlewall gold nanotubes
(American Physical Society, 2004)The formation of freestanding and tipsuspended chiralwall (n,m) nanotubes, which were composed of helical atomic strands, from gold atoms was investigated using firstprinciples calculations, where (n,m) notation defines ... 
Computationally efficient wavelet affine invariant functions for shape recognition
(IEEE, 2004)An affine invariant function for object recognition is constructed from wavelet coefficients of the object boundary. In previous works, undecimated dyadic wavelet transform was used to construct affine invariant functions. ... 
Correlation Tracking Based on Wavelet Domain Information
(2004)Tracking moving objects in video can be carried out by correlating a template containing object pixels with pixels of the current frame. This approach may produce erroneous results under noise. We determine a set of ... 
Dynamical correlations in Coulomb drag effect
(Elsevier, 2003)Motivated by recent Coulomb drag experiments in pairs of lowdensity twodimensional (2D) electron gases, we investigate the influence of correlation effects on the interlayer drag rate as a function of temperature. We use ... 
Electronic structure, insulatormetal transition and superconductivity in KET2X salts
(1998)The electronic structure and superconductivity of layered organic materials based on the bis(ethylenedithio)tetrathiafulvalene molecule (BEDTTTF, hereafter ET) with essential intraET correlations of electrons are analysed. ... 
Existence of a metallic phase in a 1D HolsteinHubbard model at half filling
(Elsevier B.V., 2007)The onedimensional halffilled HolsteinHubbard model is studied using a series of canonical transformations including phonon coherence effect that partly depends on the electron density and is partly independent and also ... 
Fast insect damage detection in wheat kernels using transmittance images
(2004)We used transmittance images and different learning algorithms to classify insect damaged and undamaged wheat kernels. Using the histogram of the pixels of the wheat images as the feature, and the linear model as the ... 
Fast processing techniques for accurate ultrasonic range measurements
(Institute of Physics Publishing, 2000)Four methods of range measurement for airborne ultrasonic systems  namely simple thresholding, curvefitting, slidingwindow, and correlation detection  are compared on the basis of bias error, standard deviation, total ... 
Feedbacklabelling synergies in judgmental stock price forecasting
(Elsevier, 2004)Research has suggested that outcome feedback is less effective than other forms of feedback in promoting learning by users of decision support systems. However, if circumstances can be identified where the effectiveness ... 
Manybody effects in the Coulomb drag between low density electron layers
(Elsevier Science, 2003)Recent Coulomb drag experiments in lowdensity doublelayer electron systems have the power of distinguishing various manybody formulations of the effective interactions. In this work we theoretically study the correlation ... 
Markov modulated periodic arrival process offered to an ATM multiplexer
(Publ by IEEE, Piscataway, NJ, United States, 1993)When a superposition of on/off sources is offered to a deterministic server, a particular queueing system arises whose analysis has a significant role in ATM based networks. Periodic cell generation during active times is ... 
The offresonant aspects of decoherence and a critique of the twolevel approximation
(IOP Institute of Physics, 2006)Conditions in favour of a realistic multilevelled description of a decohering quantum system are examined. In this regard the first crucial observation is that the thermal effects, contrary to the conventional belief, play ... 
Plasmon dispersion and damping in doublelayer electron systems
(Elsevier Science Ltd, Exeter, United Kingdom, 2000)We use dynamical localfield corrections to study the plasmon dispersion and damping in doublelayer electron systems. The wave vector and frequencydependent localfields describing the exchangecorrelation effects are ... 
Quasiparticle properties in a quasitwodimensional electron liquid
(Indian Academy of Sciences, 2008)We consider the quasiparticle properties such as the effective mass and spin susceptibility of quasitwodimensional electron systems. The finite quantum well width effects are incorporated into the localfield factors ...