Autor: Swain, A. K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: On Classes of Modified Ratio Type And Regression-Cum-Ratio Type Estimators in Sample Surveys Using Two Auxiliary Variables
Autorzy:: Swain, A. K. P. C.
Powiązania:: https://bibliotekanauki.pl/articles/465714.pdf
Data publikacji:: 2012
Wydawca:: Główny Urząd Statystyczny
Tematy:: ratio type estimators regression-cum-ratio type estimators simple random sampling
auxiliary variables
bias
efficiency
Opis:: In this paper generalized classes of modified ratio type and regression-cum-ratio type estimators of the finite population mean of the study variable are suggested in the presence of two auxiliary variables in simple random sampling without replacement when the population means of the auxiliary variables are known in advance. Some special cases of the generalized estimators are compared with respect to their biases and efficiencies both theoretically and with the help of some natural populations.
Źródło:: Statistics in Transition new series; 2012, 13, 3; 473-494
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: On Efficient Difference Type Estimators
Autorzy:: Swain, A. K. P. C.
Powiązania:: https://bibliotekanauki.pl/articles/465693.pdf
Data publikacji:: 2010
Wydawca:: Główny Urząd Statystyczny
Tematy:: Difference type
Ratio type and Regression type estimators
Efficiencies of estimators
Auxiliary information
Simple random sampling without replacement
Opis:: This paper considers a more efficient difference type estimator in a finite population set-up. Ratio type and regression type estimators are derived as special cases. Further efficiencies of these estimators are compared with classical ratio and regression estimators. Numerical illustrations are provided to compare efficiencies of different competitive estimators.
Źródło:: Statistics in Transition new series; 2010, 11, 3; 128-135
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Some classes of modified ratio type estimators in sample surveys
Autorzy:: Swain, A. K. P. C.
Das, Manjula
Powiązania:: https://bibliotekanauki.pl/articles/466061.pdf
Data publikacji:: 2015
Wydawca:: Główny Urząd Statystyczny
Tematy:: ratio type estimator
simple random sampling
bias
mean square error
efficiency
Opis:: In this paper some classes of modified ratio type estimators with additive and multiplicative adjustments made to the simple mean per unit estimator and classical ratio estimator are suggested to obtain more efficient ratio type estimators compared to the classical one. Their biases and mean square errors are obtained and compared with first order approximations.
Źródło:: Statistics in Transition new series; 2015, 16, 1; 37-52
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Evolutionary computation approaches to tip position controller design for a two-link flexible manipulator
Autorzy:: Subudhi, B.
Ranasingh, S.
Swain, A. K.
Powiązania:: https://bibliotekanauki.pl/articles/229971.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: flexible manipulator
genetic algorithm
bacteria foraging
fitness function
Opis:: Controlling multi-link flexible robots is very difficult compared rigid ones due to inter-link coupling, nonlinear dynamics, distributed link flexure and under-actuation. Hence, while designing controllers for such systems the controllers should be equipped with optimal gain parameters. Evolutionary Computing (EC) approaches such as Genetic Algorithm (GA), Bacteria Foraging Optimization (BFO) are popular in achieving global parameter optimizations. In this paper we exploit these EC techniques in achieving optimal PD controller for controlling the tip position of a two-link flexible robot. Performance analysis of the EC tuned PD controllers applied to a two-link flexible robot system has been discussed with number of simulation results.
Źródło:: Archives of Control Sciences; 2011, 21, 3; 269-285
1230-2384
Pojawia się w:: Archives of Control Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

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