搜索结果: 1-15 共查到“理学 Least-squares”相关记录35条 . 查询时间(0.175 秒)
Maximum entropy estimation of values at Mt. Etna: comparison with conventional least squares and maximum likelihood results and correlation with volcanic activity
frequency-magnitude distribution maximim entropy method Mt. Etna
2015/10/8
The variations of the b coefficient in the frequency-magnitude relationship for earthquakes which occurred at Mt. Etna from 01/01/90 to 31/12/92 are analyzed; the completeness threshold for our earthq...
A technical note on the bias in the estimation of the b-value and its uncertainty through the Least Squares technique
b-value Seismology Least Squares technique Synthetic-earthquake catalogs
2015/9/2
We investigate conceptually,
analytically, and numerically the biases in the estimation of the
b-value of the Gutenberg-Richter law and of
its uncertainty made through the least
squares technique...
Least-squares covariance matrix adjustment
Symmetric matrices linear equations inequalities the original matrix
2015/8/10
We consider the problem of finding the smallest adjustment to a given symmetric n by n matrix, as measured by the Euclidean or Frobenius norm, so that it satisfies some given linear equalities and ine...
A Space-Time Diffusion Scheme for Peer-to-Peer Least-Squares Estimation
Least-Squares Estimation Diffusion Scheme
2015/6/19
We consider a sensor network where each sensor takes multiple measurements of some unknown parameters, corrupted by independent Gaussian noises. The number of measurements at each node can be nite or ...
Using Band Ratio, Semi-Empirical, Curve Fitting, and Partial Least Squares (PLS) Models to Estimate Cyanobacterial Pigment Concentration from Hyperspectral Reflectance
phycocyanin chlorophyll band ratio MGM water quality
2015/1/16
This thesis applies several different remote sensing techniques to data collected from 2005 to 2007 on central Indiana reservoirs to determine the best performing algorithms in estimating the cyanobac...
A ROBUST PCT METHOD BASED ON COMPLEX LEAST SQUARES ADJUSTMENT METHOD
Complex Least Squares Polarimetric interferometric SAR (POLInSAR) Polarization Coherence Tomography (PCT) Vegetation height inversion
2014/4/24
Polarization Coherence Tomography (PCT) method has the good performance in deriving the vegetation vertical structure. However,
Errors caused by temporal decorrelation and vegetation height and grou...
Generalized modified least squares in the univariate linear model
Ordinary least squares Modified least squares Generalized modified least squares Univariate linear model
2011/11/9
In this short paper, we mainly aim to appeal to readers to pay close attention to the criterion of modified least squares and develop it to generalized modified least squares. The closed-form of the g...
Real Homology Cohomology and Harmonic Cochains, Least Squares, and Diagonal Dominance
Real Homology Cohomology Harmonic Cochains Least Squares Diagonal Dominance
2011/3/2
We give new algorithms for computing basis cochains for real-valued homology, cohomology, and
harmonic cochains on manifold simplicial complexes. We discuss only planar, surface, and solid
meshes.
What use are Exponential Weights for flexi-Weighted Least Squares Phylogenetic Trees?
Exponential Weights flexi-Weighted Least Squares Phylogenetic Trees
2011/1/5
The method of flexi-Weighted Least Squares on evolutionary trees uses simple polynomial or exponential functions of the evolutionary distance in place of model-based variances. This has the advantage ...
First-Order System Least Squares and the Energetic Variational Approach for Two-Phase Flow
First-Order System Least Squares Energetic Variational Approach Two-Phase Flow
2010/12/14
This paper develops a rst-order system least-squares (FOSLS) formulation for equations of two-phase ow. The main goal is to show that this discretization, along with numerical
techniques such as nes...
Open-cell Titration of Seawater for Alkalinity Measurements by Colorimetry Using Bromophenol Blue Combined with a Non-linear Least-squares Method
Seawater for Alkalinity Measurements Colorimetry Using Bromophenol Blue Combined Non-linear Least-squares Method
2010/9/13
The open-cell titration of seawater was studied for alkalinity measurements by colorimetry. 1) The colorimetric pH of free hydrogen ion concentration, pHF(ind), was calculated from the ratio of the ab...
Simultaneous Voltammetric Determination of Enrofloxacin and Ciprofloxacin in Urine and Plasma Using Multiwall Carbon Nanotubes Modified Glassy Carbon Electrode by Least-Squares Support Vector Machines
Simultaneous Voltammetric Determination Enrofloxacin Ciprofloxacin
2010/9/14
A simple and sensitive method is proposed for the electrochemical determination of enrofloxacin (ENRO) and its primary metabolite ciprofloxacin (CIPRO) at a multiwall carbon nanotubes/glassy carbon el...
FITTING A THREE-PARAMETER LOG-NORMAL DISTRIBUTION BY LEAST SQUARES
THREE-PARAMETER LOG-NORMAL DISTRIBUTION LEAST SQUARES
2009/10/29
A three-parameter log-normal distribution is derived as an exact functional
transform ot an embcdded normal distribution. The parameters of
this function are evaluated by fitting to histograms of na...
Estimation of Aquifer Parameters by Least-Squares Method under Linear Flow Conditions in Fractured Rocks
Aquifer Parameters Least-Squares Method Linear Flow Conditions
2009/10/26
Pumping and recovery test data in phyllite formations were analysed under linear
flow conditions by incorporating modification in the method proposed by Sen
(1986). Although the Sen (1986) method is...
Derivation of Constants of the Seismograph Galvanometer by the Least-Squares Method
Derivation Constants Seismograph Galvanometer Least-Squares Method
2009/6/15
Derivation of Constants of the Seismograph Galvanometer by the Least-Squares Method.