a time varying poisson process with a gamma distribution

... for time- varying parameters can lead to gains in forecasting In particular, models that incorporate a gradual change in parameters and also include a large set of explanatory variables particularly ... constant degree of parameter drift TVP-VAR (Homoscedastic) Time- varying VAR with constant variance-covariance matrix of the VAR residuals TVP-FAVAR Time- varying factor augmented VAR model TVP-FAVAR ... covariance RSVARs** Markov-switching VARs with only the coefficients switching TVP-VAR (General) Time Varying VAR with time varying degree of parameter drift TVP-VAR (Standard) Time- varying VAR with...

Ngày tải lên: 06/03/2014, 14:20

... and a microfiltration membrane as separation apparatus The aeration tank was made from Plexiglas with a working volume of liters Air was supplied to the aeration tank through diffusers at a flow ... from chemical treatment is classified as a hazardous waste, so it should be treated in a proper way This means that the sludge disposal causes a substantial increase in wastewater treatment cost ... different samples at various SRT The BOD/COD of influent sample has an average of 0.66 This shows that the denimprocessing wastewater can be classified as rather easily biodegradable waste by aerobic...

Ngày tải lên: 05/09/2013, 09:08

... graduates with a truly practical and applied background in process dynamics and control With today’s widespread commercial availability of high fidelity process simulation software, the understanding ... concepts as fundamentals of chemical engineering For undergraduate programs looking to transition away from the traditional mathematical-based approach to a more applied, hands-on approach, this ... It is imperative that a dynamic simulation is ‘packaged’ in a way that makes it easy to use and learn, yet still be applicable to a broad range of applications and users The criteria include the...

Ngày tải lên: 01/01/2014, 17:44

... batch-type simulation sessions It is imperative that a dynamic simulation is ‘packaged’ in a way that makes it easy to use and learn, yet still be applicable to a broad range of applications and ... A Real -Time Approach to Process Control A Real -Time Approach to Process Control Second Edition William Y Svrcek University of Calgary Calgary, Canada Donald P Mahoney BDMetrics Inc Baltimore, ... scheme and load variables much as the operator of a plant observes the behaviour of an actual plant Dynamic simulation allows for the comparison of several candidate control strategies and assesses...

Ngày tải lên: 01/04/2014, 10:58

... done with Mathematica 6.0 (Wolfram Research, Inc Champaign, IL) Numerical simulations were done with Matlab 7.4.0 (The MathWorks, Inc Natick, MA) Results Transmembrane potentials induced by a time- varying ... Regional polarization of the cytoplasmic membrane and the organelle membrane by the time- varying magnetic field The plot demonstrated an instant polarization pattern on both membranes A cleft was ... the material considered in the model are frequency-dependent With the standard values, ψcell was always greater than and ψorg (Figure 3A) At 10 kHz, the maximal polarization on the cell membrane...

Ngày tải lên: 19/06/2014, 08:20

... < p < ∞ space has a weakly sequentially continuous duality map with the gauge ϕt tp−1 Gossez and Lami Dozo proved that a space with a weakly continuous duality mapping satisfies Opial’s condition ... if a space satisfies Opial’s condition and has a uniformly Gˆ teaux differentiable norm, then it has a weakly continuous duality mapping a We already know that in q-uniformly smooth Banach space, ... Mathematical Analysis and Applications, vol 20, pp 197–228, 1967 S Banach, “Surles ope’rations dans les ensembles abstraits et leur application aux e’quations inte’grales,” Fundamenta Mathematicae, vol...

Ngày tải lên: 21/06/2014, 11:20

... Fibroblast Cell-Lines Datasets There are many approaches (computational or statistical) now available for analyzing aCGH data in the relative literature But many of those approaches, especially ... provide a scatter plot that represents a change in a sequence of data simulated from a compound Poisson process described above 2.2 A Bayesian Analysis for Locating the Change Point The change-point ... computational implementation of our approach in the next subsection 2.3 Computational Implementation of the Bayesian Approach To implement our above Bayesian approach to real data, it is necessary...

Ngày tải lên: 21/06/2014, 11:20

... nonuniformly sampled data Both the mean value and the standard deviation of the relative error of estimation are about 1% and 10%, respectively Here again they are calculated by time averaging; this ... ω1 and ω2 correspond to a one-week and a one-day seasonality; this is, for instance, the case of German electricity price treated in 3.6 a0 , a1 and a2 are chosen so as to have realistic values ... repeating again the simulation several times with respect to the same volatility trajectory till this instant The mean value and the standard deviation of the relative error for this instant are...

Ngày tải lên: 21/06/2014, 22:20

... (as in (24) and (26)) and marginalization of a Gaussian pdf (as in (22), (23), and (27)), results in a Gaussian pdf again, all forward and backward messages on the graph turn out to be Gaussian ... induced by this approximation is minor when the distribution P e (ak ) has a pronounced peak, that is, when P e (ak = a) ≈ for a particular a and P e (ak = a ) for a = a Hence, as long as the detector ... the evaluation of the sum-product algorithm: forward and backward messages Forward message passing Backward message passing Based on the SP rules, we can also compute the backward messages from...

Ngày tải lên: 22/06/2014, 23:20

... Krishnan, R M Rangayyan, G D Bell, and C B Frank, “Adaptive time- frequency analysis of knee joint vibroarthrographic signals for noninvasive screening of articular cartilage pathology,” IEEE Trans ... was promoted to an Associate Professor in 2003 Sri Krishnan’s research interests include adaptive signal processing, biomedical signal/image analysis, and multimedia processing and communications ... International Conference on Multimedia and Expo (ICME ’03), vol 2, pp 513–516, Baltimore, Md, USA, July 2003 [6] A Ramalingam and S Krishnan, A novel robust image watermarking using a chirp based...

Ngày tải lên: 23/06/2014, 01:20

... Rae A (1985) The analysis of binomial data by a generalized linear mixed model Biometrika 72, 593-599 Harville DA, Mee RW (1984) A mixed model procedure for analyzing ordered categorical data ... Generalized linear models with random effects; a Gibbs sampling approach J Am Stat Assoc 86, 79-86 Zeger SL, Liang KY, Albert PS (1988) Models for longitudinal data: a generalized estimating equation ... a multivariate normal distribution N(0, G) with mean zero and variance covariance matrix G, thus resulting in what is called the Poisson- lognormal distribution (Reid, 1981; Aitchinson and Ho,...

Ngày tải lên: 14/08/2014, 19:22

... Zhou and P P Khargonekar An algebraic riccati equation approach to h1 optimization Systems and Control Letters, 11:85–91, 1988 R D Braatz J G Van Antwerp A tutorial on linear and bilinear matrix ... considered as a time- varying parameter This particular choice is motivated by the fact that , which causes the system to be nonlinear, can be measured online The value of the rotor angular speed varies ... 385 G Tapia A Tapia and J X Ostolaza Reactive power control of wind farms for voltage control applications Renewable Energy, 29:377–392, 2004 B Hopfensperger, D.J Atkinson, and R A Lakin Stator...

Ngày tải lên: 26/10/2014, 14:39

... to characterize the variations of extreme values with time A collected group of data is selected to demonstrate that such a discretized model can provide a more reasonable and accurate characterization ... of that are uncorrelated normal variables (Hasofer and Lind, 1974) In the case of correlated normal variables of , orthogonal transformations are employed (Ang and Tang, 1984) Rosenblatt transformation ... transformation has also been advocated for cases where the joint probability distribution are known whereas Nataf transformation is appropriate for the case that only partial information is known (Nataf...

Ngày tải lên: 10/09/2015, 09:31

... present theory is of a phonological rather than a morphological nature, this parameter models the (occasional) appearance of new simplex words in the language only, and cannot be used to model ... species and the estimation of population parameters, Biometrika 43, 45-63 Herdan, G 1960 Type-toke~ Mathematics, The Hague, Mouton Ku~era~ H & Francis, W.N 1967 CompaLational Analysis of Prese~t-Day ... that unnatural rankfrequency distributionsin which a small number of types assume exceedingly high token frequencies are avoided The proposed rule of usage can be viewed as a means to obtain a...

Ngày tải lên: 08/03/2014, 07:20

... stability of delay equations, J Math Analysis Appl., 226(1998) 82 [7] D Hinrichsen, A Ilchmann, A. J Pritchard, Robustness of stability of time- varying linear systems, J Differential Equations, 82(1989) ... radius Following the idea in [1], we set up a formula for stability radius in the space lp and show that when p = and A, E, F are constant matrix, we obtain the result dealt with in [5] The technique ... References [1] B Jacob, A formula for the stability radius of time- varying systems, J Differential Equations, 142(1998) 167 [2] D Hinrichsen, A. J Pritchard, Stability radii of linear systems, Systems...

Ngày tải lên: 22/03/2014, 11:20

... used to denote a diagonal matrix with x on the diagonal, and D {A0 , , AN−1 } is used to denote a block-wise diagonal matrix with the matrices A0 , , AN-1 on the diagonal ⊗ and † represent ... that the frequency-domain channel matrix has most of its power located on the main diagonal, the D/2 sub- and D/2 super-diagonals for an appropriate value of D In an ideal case where the channel ... observation samples is illustrated in Figure As shown in [6], the choice of ℓ can have a great impact on the channel estimation performance The above analysis is based on a single transmit antenna...

Ngày tải lên: 20/06/2014, 22:20

... that the matrix A is a symmetric and positive semidefinite or negative semidefinite matrix The notations AT and A 1 mean the transpose of A and the inverse of a square matrix λmax A or λmin A denote ... neural networks: an LMI approach,” Chaos, Solitons & Fractals, vol 32, no 5, pp 1742–1748, 2007 16 R Rakkiyappan, P Balasubramaniam, and J Cao, “Global exponential stability results for neutraltype ... networks,” Chaos, Solitons & Fractals, vol 34, no 2, pp 662–668, 2007 S Mohamad, K Gopalsamy, and H Akca, “Exponential stability of artificial neural networks with ¸ distributed delays and large impulses,”...

Ngày tải lên: 21/06/2014, 05:20

... ≤ 1, A0 , Ai , Di ∈ Rn , Ai ,Di are known constant matrices with appropriate dimensions Where ∆Ai , ∆Di are the constant matrices which denote time- varying parameter uncertainties and are assumed ... of delay-dependent stability criteria for a class of constant time- delay neutral systems with time- varying structured uncertainties was investigated [4] Han [5] obtained delay-dependent stability ... delay-dependent robust stability of neutral systems with mixed delays and time- varying structured uncertainties A new method based on linear matrix inequalities was presented that makes it easy...

Ngày tải lên: 21/06/2014, 20:20

... overall statistical characterization of the channel This approach was effectively used in [12] for adaptive OFDM with a single transmit antenna To elaborate this idea, let us assume that we have ... Achievable rate with one transmit antennas and one outdated channel estimate Figure 6: Achievable rate with multiple transmit antennas only and one outdated channel estimate subcarrier at the nth ... transmit antennas is denoted by Nt , and we initially assume one receive antenna The channel between each transmit and receive antenna pair is independent and is modeled as a multipath with an...

Ngày tải lên: 22/06/2014, 19:20