... synchronous PCFGs built for translation These are parameterized by the PCFG’s parameters, but add or remove strings of the PCFG to leave an improper probability distribution Fortunately for those techniques, ... in terms of underlying parameters to be learned §3 asks what it means to learn these parameters from training data (what is to be optimized?), and notes the apparently formidable bookkeeping ... Fig 1a has only parameters total.2 In general, composing machines multiplies their arc counts but only adds their parameter counts We wish to optimize just the few underlying parameters, not...
Ngày tải lên: 20/02/2014, 21:20
... current parameter vector are made, typically a positive and negative perturbation of one parameter at a time The exploratory step then has formed a basis for the parameter space with information ... sensitivity of the cost function for each parameter The goal is to extend the insensitive parameters search range relative to the range over the more sensitive parameters Each parameter has its own temperature, ... tting for different initial guesses of the parameter vector The resulting parameter vector matrix is analyzed with Alternating Conditional Expectation [28], resulting in optimal transformations for...
Ngày tải lên: 23/03/2014, 06:20
Báo cáo khoa học: Direct CIII–HflB interaction is responsible for the inhibition of the HflB (FtsH)-mediated proteolysis of Escherichia coli r32 by kCIII docx
... inhibitor for the proteolysis of r32 through direct interaction with the protease, characterized by a lack of interaction between r32 and CIII (Fig 4) As for CII, competition between r32 and CIII for ... affinity for r32–HflB interaction and CIII–HflB interaction would play an important role in the inhibition of proteolysis of r32 by HflB Interestingly, both CII and r32 are cytosolic substrates for HflB ... concentration of 0.5 mm Cells were grown for a further 20 and poured into cold tubes All subsequent steps were performed at °C After centrifugation at 1900 g for 10 min, the cell FEBS Journal 275...
Ngày tải lên: 23/03/2014, 10:20
Báo cáo toán học: " Parameter estimation for SAR micromotion target based on sparse signal representation" pot
... the parameter estimation of micromotion targets in synthetic aperture radar (SAR), where scattering parameters and micromotion parameters of targets are coupled resulting in a nonlinear parameter ... difficult for micromotion ones due to their sinusoidal range history [7] Matched filter is commonly used for motion or micromotion target imaging [8, 9] It performs the reconstruction at every pixel for ... their tires/engines Micromotion parameters, such as the rotating frequency and radius, record targets’ attributed information Thus their estimation is very important for micromotion compensation...
Ngày tải lên: 20/06/2014, 20:20
báo cáo hóa học: " Critical parameter equations for degenerate parabolic equations coupled via nonlinear boundary flux" pptx
... the critical exponents for (1.1)-(1.3) in special cases In [9-11], the authors consider the case for pi = 1, (i = 1, 2, , k) In [12], the authors consider the case for k = For the system (1.1)-(1.3), ... that are global Therefore, the critical global existence parameter equation is (III) If k l=1 (1 k k (1 + pl ) = l=1 2ql (i.e det A = 0) l=1 and the critical Fujita type parameter equation is ... for a self-similar solution of exponential form for the scalar problem (1.4) with q2 = (p1 + 1)/2 (see [8]) Proof of Theorem 2.1 We consider solutions of form (2.1) Imposing that the porous equations...
Ngày tải lên: 21/06/2014, 00:20
Báo cáo toán học: "Parameter Augmentation for Two Formulas" pdf
... (2.5) T (bDq ){ T (bDq ){ A generalization of the q-integral form of the sears transformation In this section, we consider the following formula ( [3, Theorem 6.2]) d c (qt/c, qt/d, abcdet; q)∞ d(1 ... of Gasper’s Formula We observe the following integral formula which was discovered by Gasper ([5]), In ([3]), Chen and Liu had proved it from the Asky-Roy intergral in one step of parameter augmentation ... the q-umbral caculus, J Math Anal Appl 107 (1985), 222-254 [2] W Y C chen-Z G Liu , Parameter augemntation for basic hypergeometric series I, B E Sagan, R P Stanley(Eds), Mathematical Essays...
Ngày tải lên: 07/08/2014, 13:21
Báo cáo lâm nghiệp: "Using past growth to improve individual-tree diameter growth models for uneven-aged mixtures of Pinus sylvestris L. and Pinus nigra Arn. in Catalonia, north-east Spain" doc
... than for P nigra The bias for the earlier P sylvestris model was 2.1% and for the new model 1.4%; the RMSE for the earlier P sylvestris model was 65.6% and for the new model 60.9%; the bias for ... standard deviation was 0.25 for P sylvestris and 0.22 for P nigra, the mean being equal to for both species For random sampling, the number of trees to be sampled for calculating the past growth ... of the Spanish National Forest Inventory, for making the Forest Inventory data available and for his cooperation We thank Editor G Aussenac and the anonymous reviewers for their valuable comments...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: "Growth and yield model for uneven-aged mixtures of Pinus sylvestris L. and Pinus nigra Arn. in Catalonia, north-east Spain" pptx
... 224.3% for P sylvestris ingrowth, 257.3% for P nigra ingrowth, 10.1% for P sylvestris mean dbh of ingrowth, and 10.2% for P nigra mean dbh of ingrowth There were no obvious trends in the bias for ... 0.11 for the P nigra ingrowth model, 0.12 for the P sylvestris mean dbh of ingrowth model, and 0.05 for the P nigra mean dbh of ingrowth model The developed models Growth and yield model for pine ... values of 0.11 for P sylvestris and 0.18 for P nigra The R2 values of predictions using both the diameter growth and plot factor models (Eq (18)) were 0.16 for P sylvestris and 0.18 for P nigra...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo y học: "Smoking–gender interaction and risk for rheumatoid arthritis" pot
... value calculated for the interaction term in the logistic regression model was used to determine statistical significance If this showed the presence of a statistically significant interaction, then ... significant interaction, then a second stage of analyses was performed In the second stage, parallel case–control analyses were performed for men and women using multivariable logistic regression The ... relationship Separate regression analyses were performed to assess the effect of both the smoking variables (current smoking and past smoking) on the risk for RA Forward or backward stepwise selections...
Ngày tải lên: 09/08/2014, 01:21
Báo cáo sinh học: "Parameter expansion for estimation of reduced rank covariance matrices (Open Access publication)" potx
... algorithm a straightforward extension to standard EM For the reparameterised model (Eq 9), e = y − Xβ − Z (I ⊗ α) u+ Hence, for Θk = αi j only derivatives of log QE are non-zero For unstructured ... Numbers of principal components fitted for covariance matrices estimated, numbers for A, M, C and E for Example 2, and A and R for Example 3; cf Table I b See Table II for abbreviations problems associated ... estimators are usually much easier to calculate than those for NR type methods An early formulation for an EM type algorithm to estimate covariances for multiple trait models has been presented by Henderson...
Ngày tải lên: 14/08/2014, 13:22
Báo cáo sinh học: "Univariate and multivariate parameter estimates for milk production traits using an animal model. I. Description and results of REML analyses" pptx
... to the parameter estimates in each sample For analyses 1) and 2) data were split into subsets of 20 herds each, for analyses 3) into 5, and subsets (for L L and L ,, 12 respectively), and for 4) ... found that for a range of parameter values likely to correspond with the true population values for milk, fat and protein yield, small biases were predicted for the estimates of the genetic parameters, ... heritability for the trait in lactation and for the genetic and environmental correlation would be 0, 0.4 and -4.4 respectively for 1!11M2, and 0.2, 0.3 and 4.4 for PiP using the BV , parameter...
Ngày tải lên: 14/08/2014, 20:20
Báo cáo sinh học: "Univariate and multivariate parameter estimates for milk production traits using an animal model. II. Efficiency of selection when using simplified covariance structures" docx
... presented in table III For the parameter set chosen the loss in efficiency was small; a 0-5% reduction in genetic gain for a range of heritabilities for first and second lactation performance = = = = ... (obvious) choice for the transformation matrix h V is a canonical transformation on M F and P This transformation was l , , 1 calculated (see Hayes and Hill, 1980 ; and lMeycr, 1985, for computations) ... scaling factor for genetic variances for the transformed scale (transformation such that new variates are uncorrelated) in lactation was 1.74, and the estimate of the average scaling factor for environmental...
Ngày tải lên: 14/08/2014, 20:20
Process parameter optimization for direct metal laser sintering (DMLS
... Table 4.2 Parameter settings for experiments 58 Table 5.1 A sample of the table structure 68 Table 5.2 Parameter setting for the experiments 68 Table 5.3 Process parameter settings for simulation ... Database 79 5.5.1 Database for process parameters and working range 80 5.5.2 Database for experiment result data 80 5.5.3 Database for trained NN structure 81 5.5.4 Database for NN-simulated results ... 4.8 Parameters effect on part accuracy 59 Figure 4.9 Parameter effect on the sintering layer surface roughness 60 Figure 4.10 Parameter effect on the tensile strength 61 Figure 5.1 Intelligent Parameter...
Ngày tải lên: 16/09/2015, 17:14
Hyper parameter learning for graph based semi supervised learning algorithms
... transformation functions for leave-one-out loss 77 Figure 3.3 Pseudo-code for the framework of the efficient implementation 88 Figure 4.1 Examples of degenerative leave-one-out hyperparameter ... i l- l+ for positively labelled data, g i - l- l+ for negatively labelled data, where l+ and l– stand for the number of positive and negative labelled examples respectively g i = for unlabelled ... 1995) for word sense disambiguation, (Riloff et al., 2003) for subjective noun identification, (Maeireizo et al., 2004) for emotional and non-emotional dialogue classification, and (Weiss, 1999) for...
Ngày tải lên: 22/10/2015, 21:18
Cambridge.University.Press.Protecting.the.Polar.Marine.Environment.Law.and.Policy.for.Pollution.Prevention.Jan.2001.pdf
... conventions and their impact on the polar marine environment Interaction between global conventions and regional regimes for marine environmental protection Conclusions The polar marine environment in ... International Polar Navigation Code: bi -polar relevance? Lawson W Brigham Navigating in polar waters Historical perspectives The harmonisation process and developments Key elements of the Polar Code ... polychlorinated biphenyl Polar Code (Draft) International Code of Safety for Ships in Polar Waters POP persistent organic pollutant RPA Regional Programme of Action for the Protection of the...
Ngày tải lên: 21/09/2012, 10:58
Báo cáo khoa học: Implication for buried polar contacts and ion pairs in hyperthermostable enzymes pot
... intermolecular and intramolecular polar interactions such as hydrogen bonds [11–13] and salt linkages [1,14–22], appeared to be major factors that are responsible for hyperthermostablility, interatomic ... number of polar contacts and the results was used to evaluate the rigidity of the core region and the hydrophilic property of the molecular surface For oligomeric proteins, intermolecular polar contacts ... frequency of buried polar contacts among all polar con˚ tacts in distances less than 3.3 A in the ArATPh molecule is highest (18.3%) as shown in Tables and By contrast, the frequency of polar contact...
Ngày tải lên: 07/03/2014, 05:20
Báo cáo khoa học: Human mesotrypsin exhibits restricted S1¢ subsite specificity with a strong preference for small polar side chains docx
... enzyme (e.g trypsin); k1 and k)1 denote the forward and reverse rate constants of the formation of the noncovalent complex EI; k2 is the rate constant of the formation of the acyl– enzyme intermediate ... increased SI was indeed demonstrated for mesotrypsin (SI $2), repeated functional assays consistently determined SI values around unity for the other trypsins Therefore, we must conclude that the ... the reaction reached completion For wild-type a1AT, a 20 reaction time was used, with the exception of cationic trypsin, which was allowed to associate for h For a1AT Pittsburgh the incubation...
Ngày tải lên: 30/03/2014, 10:20
Báo cáo hóa học: " Research Article Modified Polar Sigma-Delta Transmitter for Multiradio Applications" pptx
... cos (φ) PLL sin φ + − PA Digital Figure 1: Architecture of a polar ΣΔ transmitter with baseband recombination Polar ΣΔ Architectures for Multi-Radio Applications ρ(t) = (zI (t))2 + zQ (t) ρ DAC ... this architecture (as any polar architecture) comes out from the conversion from Cartesian to Polar coordinates This conversion leads to bandwidth expansion and, therefore, to higher requirements ... can be used for both, the PLL and the ΣΔ modulator In this paper, the factor m has been set to 2, and the carrier frequency is 3.7 GHz Therefore, the same frequency has been chosen for the ΣΔ...
Ngày tải lên: 21/06/2014, 11:20
Báo cáo hóa học: " Research Article Inequalities for the Polar Derivative of a Polynomial" pot
... z |z| 1.4 For the class of polynomials having all its zeros in |z| ≤ k, k ≥ 1, Govil proved that ≥ max p z |z| n max p z kn |z| 1 1.5 Inequality 1.5 is sharp and equality holds for p z zn kn ... |z| ≤ k, k ≥ 1, then for |α| ≥ k, |z| where m ≥ n |α| − k max Dα p z max p z kn |z| 1 2kn kn − m , kn 1.10 min|z| k |p z | Recently, Dewan et al extented inequality 1.6 to the polar derivative of ... Inequalities and Applications for n > and max Dα p z |z| 1 ≥ n |α| − k kn kn − m kn max p z 2k3 |z| 2|an−1 | n k k n kn − − k−1 n 2kn−5 |an−2 | k − n n n−1 kn k−1 k 2k2 n for n |na0 αa1 | 1.13 k −...
Ngày tải lên: 22/06/2014, 02:20