Application of Robust Estimation Methods to Displacements Determination in Geodetic Control Network of Dam

Banas, Marek

doi:10.1109/bgc.geomatics.2017.42

Cited by 2 publications

(3 citation statements)

References 9 publications

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“…In the past, many di erent robust methods have been used in Geodesy. For example, the Least Absolute Deviations method (Yetkin and Inal 2011), M-estimators (Banaś, 2017), and high-breakdown estimators, i.e., LMS (Least Median of Squares) and LTS (Least Trimmed Squares) methods (Yetkin and Berber, 2014) have been applied successfully.…”

Section: Robust Ltav Estimatormentioning

confidence: 99%

On the application of nature-inspired grey wolf optimizer algorithm in geodesy

Yetkin

Bilginer

2020

Journal of Geodetic Science

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AbstractNowadays, solving hard optimization problems using metaheuristic algorithms has attracted bountiful attention. Generally, these algorithms are inspired by natural metaphors. A novel metaheuristic algorithm, namely Grey Wolf Optimization (GWO), might be applied in the solution of geodetic optimization problems. The GWO algorithm is based on the intelligent behaviors of grey wolves and a population based stochastic optimization method. One great advantage of GWO is that there are fewer control parameters to adjust. The algorithm mimics the leadership hierarchy and hunting mechanism of grey wolves in nature. In the present paper, the GWO algorithm is applied in the calibration of an Electronic Distance Measurement (EDM) instrument using the Least Squares (LS) principle for the first time. Furthermore, a robust parameter estimator called the Least Trimmed Absolute Value (LTAV) is applied to a leveling network for the first time. The GWO algorithm is used as a computing tool in the implementation of robust estimation. The results obtained by GWO are compared with the results of the ordinary LS method. The results reveal that the use of GWO may provide efficient results compared to the classical approach.

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Section: Robust Ltav Estimatormentioning

confidence: 99%

On the application of nature-inspired grey wolf optimizer algorithm in geodesy

Yetkin

Bilginer

2020

Journal of Geodetic Science

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“…Za izračun Huberjeve ocene lahko uporabimo za c  1,3450 (Pennacchi, 2008;Banaś, 2017;Pardoe et al, 2018), drugi avtorji (Nowel, 2015;Gašinec in Gašincová, 2016;Hassan, 2016;Sušić et al, 2017;Erenoglu, 2018) pa predlagajo vrednosti za c med 1,5 in 2.…”

Section: Utežna Funkcijaunclassified

“…Po testiranju stabilnosti posamezne komponente z German-McClurejevo oceno za komponente vektorja premika točke po enačbah v preglednici 1 se za točki 5 in 6 rezultat ne ujema glede s simuliranim stanjem. Če uporabimo različne konstante (Erenoglu, 2018;Banaś, 2017;Labant et al, 2011) v Hampelovi oceni za komponente vektorja premika točke po enačbi v preglednici 1, dobimo precej podobne rezultate -izračunane komponente premikov se razlikujejo za največ 3,6 mm, izračunani premiki pa 2,5 mm. Potrjena je stabilnost točk 4, 5 in 6 ter nestabilnost točk 1, 2, 3 in 7.…”

Section: Komentar Rezultatov -Premiki Točk Po Koordinatnih Komponentahunclassified

Deformation analysis with robust methods in geodetic nets

Ambrožič¹,

Mulahusić²,

Tuno³

et al. 2019

geod. vestn.

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deformation analysis, robust methods, numerical example This article describes the deformation analysis approach with robust methods in geodetic networks. The characteristic of this approach is the iterative weighted similarity transformation in which the displacement vector d is transformed into a datum determined by points with a smaller coordinate difference between two epochs. The article first gives a theoretical background of the approach, and then the approach is applied to the case of simulated measurements in two epochs. The calculated results of the deformation analysis approach with the robust methods in the present case do not differ significantly from the results obtained by conventional deformation analysis approaches.

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Application of Robust Estimation Methods to Displacements Determination in Geodetic Control Network of Dam

Cited by 2 publications

References 9 publications

On the application of nature-inspired grey wolf optimizer algorithm in geodesy

On the application of nature-inspired grey wolf optimizer algorithm in geodesy

Deformation analysis with robust methods in geodetic nets

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