Temat: estymator - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Monitoring of chlorine concentration in drinking water distribution systems using an interval estimator
Autorzy:: Łangowski, R.
Brdyś, M. A.
Powiązania:: https://bibliotekanauki.pl/articles/929615.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: estymator
jakość wody
metoda ograniczająca
modelowanie dynamiczne
estimators
bounding methods
modelling dynamics
water quality
Opis:: This paper describes the design of an interval observer for the estimation of unmeasured quality state variables in drinking water distribution systems. The estimator utilizes a set bounded model of uncertainty to produce robust interval bounds on the estimated state variables of the water quality. The bounds are generated by solving two differential equations. Hence the numerical efficiency is sufficient for on-line monitoring of the water quality. The observer is applied to an exemplary water network and its performance is validated by simulations.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2007, 17, 2; 199-216
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: An efficient algorithm for estimating the parameters of superimposed exponential signals in multiplicative and additive noise
Autorzy:: Bian, J.
Peng, H.
Xing, J.
Liu, Z.
Li, H.
Powiązania:: https://bibliotekanauki.pl/articles/331007.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: superimposed exponential signals
modified Newton–Raphson algorithm
multiplicative noise
additive noise
least squares estimator
algorytm Newtona-Raphsona
metoda najmniejszych kwadratów
estymator
Opis:: This paper considers parameter estimation of superimposed exponential signals in multiplicative and additive noise which are all independent and identically distributed. A modified Newton–Raphson algorithm is used to estimate the frequencies of the considered model, which is further used to estimate other linear parameters. It is proved that the modified Newton–Raphson algorithm is robust and the corresponding estimators of frequencies attain the same convergence rate with Least Squares Estimators (LSEs) under the same noise conditions, but it outperforms LSEs in terms of the mean squared errors. Finally, the effectiveness of the algorithm is verified by some numerical experiments.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2013, 23, 1; 117-129
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Bayes sharpening of imprecise information
Autorzy:: Kulczycki, B.
Charytanowicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/908526.pdf
Data publikacji:: 2005
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: informacja niepewna
współczynnik kondycji
estymator jądrowy
funkcja strat
obliczenia numerycze
imprecise information
sharpening
conditioning factors
kernel estimators
Bayes decision rule
nonsymmetrical loss function
numerical calculations
Opis:: A complete algorithm is presented for the sharpening of imprecise information, based on the methodology of kernel estimators and the Bayes decision rule, including conditioning factors. The use of the Bayes rule with a nonsymmetrical loss function enables the inclusion of different results of an under- and overestimation of a sharp value (real number), as well as minimizing potential losses. A conditional approach allows to obtain a more precise result thanks to using information entered as the assumed (e.g. current) values of conditioning factors of continuous and/or binary types. The nonparametric methodology of statistical kernel estimators freed the investigated procedure from arbitrary assumptions concerning the forms of distributions characterizing both imprecise information and conditioning random variables. The concept presented here is universal and can be applied in a wide range of tasks in contemporary engineering, economics, and medicine.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2005, 15, 3; 393-404
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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