segmentation kinetic parameter estimation and uncertainty visualization of dynamic pet images

... estimation of the BEM coefficients is also discussed and combined with PSAM-based MMSE channel estimation to enhance the LS fitting of the true channel and the estimated one 3.1.1 MMSE channel estimation ... coefficient of the q th basis of the l th tap of the equalizer, and K is the BEM resolution of the equalizer Substituting (26) in (25) we obtain wT Yt − xtT 2 1/2 + Rv w (33) The solution of this ... Proceedings of the European Signal Processing Conference (EUSIPCO ’04), pp 2227–2230, Vienna, Austria, September 2004 [28] D W Clarke, “Generalized-least-squares estimation of the parameters of a dynamic...

Ngày tải lên: 22/06/2014, 23:20

... 46 3.1 Estimation of AIPs in branched pathway model 55 3.2 Parameter estimation of the branched pathway model 57 3.3 Parameter estimation of the E coli model 60 3.4 Parameter estimation of the ... 64 4.1 Parameter estimations of the branched pathway model using noise-free 84 data 4.2 Parameter estimations of the branched pathway model using noisy data 4.3 Parameter estimations of the branched ... (ODEs) and large parameter search space, and (3) degrees of freedom in the model due to larger number of metabolic fluxes than metabolites These problems often led to challenging parameter estimations...

Ngày tải lên: 09/09/2015, 10:08

... 101 5.10 Random traffic demand at the on-ramp and off-ramp links 102 5.11 Evolution of TTS and WTTS with random occurrence of maximum traffic demand ... Evolution of Ls 54 3.6 Evolution of parameters in Case I 55 3.7 Evolution of parameters in Case II 56 3.8 Results of parameter ... Calibration of macroscopic models is relatively less demanding due to the smaller size of parameters and the lower cost involved in obtaining sample traffic data Control of freeway traffic flow is the core of...

Ngày tải lên: 10/09/2015, 09:31

... problems of soft color image segmentation (chapter 2), texture flow estimation (chapter 3), and image and video deblurring (chapter 4) Figure 1.1 shows examples of the input and output of each ... directions CHAPTER SOFT COLOR SEGMENTATION AND ITS APPLICATIONS 23 Chapter Soft Color Segmentation and its applications 2.1 Overview This describes an automatic approach to soft color segmentation, ... G, and a local term for each pixel described by L and C The set of unknowns consists of {ci (x, y), i (x, y), µi , Σi |i = 1, 2, , N and (x, y) ∈ I} We formulate the problem of soft color segmentation...

Ngày tải lên: 12/09/2015, 09:03

Ngày tải lên: 16/07/2016, 21:49

... greater understanding of the role of both brown and white adipocyte tissue as endocrine organs is of public health interest as they may be central to our improved understanding of obesity and diabetes ... http://www.ejnmmires.com/content/1/1/2 Page of Figure Results of repeated study on biodistribution of FDG Coronal PET and PET/ CT fusion images demonstrating normal distribution of FDG in the study performed the following ... physiologic and in Figure Biodistribution of FDG Coronal PET, PET/ CT fusion, and CT images demonstrating prominent subcutaneous white adipose tissue metabolic activity throughout the thorax, abdomen, and...

Ngày tải lên: 21/06/2014, 02:20

... −10 −20 −30 −40 The detection and parameters estimation of multicomponent LFM signal can be realized by the CPF The principle of detection and parameters estimation of single LFM signal is presented ... interval of dB, we run 200 Monte Carlo simulations, the measured MSEs (dB) of each parameter and the theoretical MSEs (dB) just as (21)–(23) are shown in Figures and SNR (dB) (c) Figure 3: MSEs of parameter ... components, the length of it is 255, and the parameters of each component are: b1 = 1, α1 = π/8, β1 = 0.005, and b2 = 0.2, α2 = π/4, and β2 = 0.002 The sampling interval is 1, the value of the input SNR...

Ngày tải lên: 21/06/2014, 22:20

... distribution and linkage between a major gene and polygenes, on the power of detecting a major gene and on parameter estimation Behavior of the mixed model of segregation analysis (Morton and MacLean, ... other genes and thus violate the assumption of independent segregation of a major gene and polygenes The objective of this paper was to study the effect of violation of the two assumptions of the ... SALP and PAP use different parameterization of effects, parameters were converted to two genotypic means ( and Aaa gene frequency of the PAA ), dominant allele (p), and polygenic (ufl) and environmental...

Ngày tải lên: 09/08/2014, 18:22

... parameters before performing parameter estimation Note that as the model changes its parameters after each round of parameter estimation, the initial guess for each run of parameter estimation changes ... applicable, and we instead employed state -of- the-art methods for the important task of parameter estimation This topic is the heart of the thesis, and will be covered in Chapters Four and Five The ... current state -of- the-art parameter estimation techniques Chapter Four has a special role in bridging the topic of “data-rich parameter estimation in Chapter Three to the topic of “modeling of Akt phosphorylation...

Ngày tải lên: 09/09/2015, 10:18

... Concluding Remarks and Acknowledgments Background • Parameter estimation is a key step in development of mathematical models • Models of interest may be ODEs/DAEs • Minimization of a weighted squared ... Global Optimization with Dynamic Systems • Much recent interest, e.g – Esposito and Floudas (2000) – Chachuat and Latifi (2003) – Papamichail and Adjiman (2002, 2004) – Singer and Barton (2004) • New ... guarantee of global optimality 17 Concluding Remarks and Acknowledgments • A deterministic global optimization approach based on interval analysis can be used to estimate the parameters of dynamic...

Ngày tải lên: 12/01/2014, 22:03

... Concluding Remarks and Acknowledgments Background • Parameter estimation is a key step in development of mathematical models • Models of interest may be ODEs/DAEs • Minimization of a weighted squared ... Global Optimization with Dynamic Systems • Much recent interest, e.g – Esposito and Floudas (2000) – Chachuat and Latifi (2003) – Papamichail and Adjiman (2002, 2004) – Singer and Barton (2004) • New ... guarantee of global optimality 17 Concluding Remarks and Acknowledgments • A deterministic global optimization approach based on interval analysis can be used to estimate the parameters of dynamic...

Ngày tải lên: 12/01/2014, 22:16

... Ecosystem of West Lake The ecosystem of West Lake is rather diverse with 232 species of plant, 141 species of phytoplankton, 43 species of zooplankton, 11 species of benthos and about 33 species of ... to estimate and predict the eutrophication of West Lake by both chemical parameters The models are considered with different cases and simulated by Software Stella II [6] Results and discussion ... about 33 species of fish According to Vietnam standard of water quality, the important parameters of water quality of West Lake, including: Phosphorous and Nitrogen concentration, DO, pH, are under...

Ngày tải lên: 13/02/2014, 12:20

... constitution.” Article 12 of The Declaration of the Rights of Men and Citizens of 1789 stipulates that “[t]he security of the rights of man and of the citizen requires public military forces,” and Article ... a professional army, the civilian leaders of the Ministry of Defense, the service chiefs of staff, and the head of the Joint Chiefs all still favored the continuation of a mixed system of professionals ... this force.” For most of its modern history, Britain’s small standing and professional Army was made up of volunteers and “functioned mainly in the pacification and policing of the empire” (Flynn,...

Ngày tải lên: 06/03/2014, 20:20

... sheets, subjected to TLC and quantication of radiolabelled ADP and AMP The kinetics of [3H]AMP and [3H]ADP formation in the absence of tRNAGlu (black symbols) or of both L-Glu and tRNAGlu (grey symbols) ... sequence and the mass of the fragments, and from the kinetics of the process (Figs S7S9 and Table S5) we concluded that the main sites of proteolytic cleavage are at the C-terminus of the predicted ... GluRS and GluTR, whose spectrum and DLS signal are shown in Fig S11 The migration positions of GluTR and GluRS, were determined by comparison with those of a homogeneous sample of GluRS (S) and of...

Ngày tải lên: 07/03/2014, 03:20

... comparative study of these five parameter estimation algorithms on four NLP tasks: ME estimation with L1 and L2 regularization, the Averaged Perceptron (AP), Boosting, and BLasso, a version of Boosting ... 𝑦 Performance of the application is measured in terms of character error The result of ME/L2 is better than that reported in Andrew and Gao (2007) due to the use of the variant of L2-regularized ... level of performance References Andrew, G 2006 A hybrid Markov/semi-Markov conditional random field for sequence segmentation In EMNLP, 465-472 Andrew, G and Gao, J 2007 Scalable training of L1-regularized...

Ngày tải lên: 08/03/2014, 02:21

... 2.88 2.72 3.18 2.84 Od2 of Asp423 OH of Ser425 NH of Ala490 NE1 of Trp664 O3 O6 O7 O7 2.89 2.64 2.94 2.40 NH of Ala490 Od2 of Asp636 Od1 of Asp524a Od2 of Asp524a O7 2.63 OH of Tyr590 NAG3 ()1) NAG4 ... E526A and D524A mutants and refined them to ˚ resolutions of 1.80 and 1.76 A, respectively A summary of crystallographic data collection and refinement statistics is given in Table Superimposition of ... superimposition of ligand (substrate or inhibitor)-free and ligand-bound structures In (F), only the ligand-free structure is shown because no ligand-bound structure is available The side-chains of three...

Ngày tải lên: 15/03/2014, 11:20

... present in B candidus venom, while 3FTx-RK is 84% identical to bucain [25] of B candidus Calcium binding and kinetic parameter of the P31-PLAs Four PLAs (Va, Vb-2, VI and II) of KBf and Bf contain ... mutational rates of the exon of the 3FTx genes are much faster than those of the PLA genes, leading to high variation of KBf-3FTx Cloning and cDNA sequencing Venom glands of only one of the KBf specimens ... the prey of Bf and king cobra consists mainly of snakes and reptiles, which are distinct from those of other kraits (e.g B candidus and B multicinctus, which prey on small catfishes, eels and rodents...

Ngày tải lên: 16/03/2014, 12:20

... 34% between dNK and dGK [29], and 47% between dGK and dCK [28], and the structures of dNK, dGK and dCK appeared to be very similar [27,28] Despite the very low sequence identity of the cellular ... respectively Estimation of subunit molecular size of rLy-TK166)136 by tricine/ethylene glycol/SDS/PAGE Because the standard SDS/PAGE methods resulted in diffuse protein bands and insufficient resolution of ... eluted as a mixture of a dimer and a tetramer For further investigation of the role of size, conformation and polarity of amino acid 106 for the function and structure of human TK1, we created nine...

Ngày tải lên: 16/03/2014, 16:20

... associated with extreme values of the Big Five trait scales Parameter Estimation Models The data-driven parameter estimation method consists of a development phase and a generation phase (Section ... the SOFTENER HEDGES category Parameters are detailed in previous work (Mairesse and Walker, 2007) NALIZATION 2.2 parameters Random Sample Generation and Expert Judgments We generate a sample of ... naturalness of the outputs of our trained models Table shows that the average naturalness is 3.98 out of 7, which is significantly lower (p < 05) than the naturalness of handcrafted and randomly generated...

Ngày tải lên: 17/03/2014, 02:20

... decisions and forecasts for inflation and output growth The Inflation Reports comprise the forecast location parameters mean, mode and median, together with a measure of uncertainty and a measure of the ... the estimation model Bhattacharjee & Holly (2010) have used a mix of observed and forecast data, including the Bank of England fan chart one-year-ahead input standard deviations for inflation and ... forecast mode and the reported measure of forecast uncertainty, as described by Wallis (2004) Following his manual yields the forecast standard deviation series of forecast inflation and of forecast...

Ngày tải lên: 22/03/2014, 23:20