EN
Local geoid determination using a generalized regression neural network and interpolation methods: A case study in Kars, Turkey
Öz
This study aimed to determine the most suitable local geoid model based on 641 GNSS/leveling points within the borders of Kars Province in eastern Turkey using the generalized regression neural network (GRNN), weighted average (WA), multiquadric (MQ), inverse multiquadric (IMQ) function, and local polynomial (LP) method. Among these methods used in local geoid determination, the studies conducted with the GRNN method are very limited in the literature. To test the performance of the model, 169 GNSS/leveling points were selected as test data. When selecting the reference and test points, care was taken to ensure that the distribution of the points was homogeneous. The criteria of root mean square error (RMSE), mean absolute error (MAE), and coefficient of determination (R2) were used to assess the accuracy and error rates of the results achieved using the different methods. The analysis showed that the GRNN yielded better results than other interpolation methods (RMSE = 1.215 cm, MAE = 0.467 cm, R2 = 0.99980).
Anahtar Kelimeler
Kaynakça
- Albayrak, M., Özlüdemir, M. T., Aref, M. M., Halicioglu, K. 2020. “Determination of Istanbul geoid using GNSS/levelling and valley cross levelling data”, Geodesy and Geodynamics, 11(3), 163-173.
- Becker, M. 2012. “Geodesy”, Springer handbook of geographic information, Springer, Springer Heidelberg Dordrecht London New York, 185-208.
- Bolat, S. 2013 “Lokal Jeoid Belirleme Yöntemleri: Samsun İli Örneği”, Yüksek Lisans Tezi, Ondokuz Mayıs Üniversitesi Fen Bilimleri Enstitüsü, Samsun, 30-32.
- Cakir, L. and Yilmaz, N. 2014. “Polynomials, radial basis functions and multilayer perceptron neural network methods in local geoid determination with GPS/levelling”, Measurement, 57, 148-153.
- Carlson, R.E. and Foley, T.A. 1991. “The Parameter R2 in Multiquadric Interpolation”, Computers & Mathematics with Applications, 21, 29-42.
- Ceylan, A., Üstün, A., Doğanalp, S., Gürses, H.B. 2011. “Karayolu ve Demiryolu Projelerinde Ortometrik Yükseklik Hesabı: En küçük Kareler ile Kollokasyon”, 13. Türkiye Harita Bilimsel ve Teknik Kurultayı, TMMOB Harita ve Kadastro Mühendisleri Odası, Ankara, 1-8.
- Doganalp, S. 2016. “Geoid height computation in strip-area project by using least-squares collocation”, Acta Geodyn. Geomater, 13(2), 182.
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Mühendislik
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
31 Aralık 2020
Gönderilme Tarihi
4 Aralık 2020
Kabul Tarihi
27 Aralık 2020
Yayımlandığı Sayı
Yıl 2020 Cilt: 13 Sayı: 3
APA
Akar, A., & Konakoglu, B. (2020). Local geoid determination using a generalized regression neural network and interpolation methods: A case study in Kars, Turkey. Erzincan University Journal of Science and Technology, 13(3), 1424-1438. https://doi.org/10.18185/erzifbed.835878
AMA
1.Akar A, Konakoglu B. Local geoid determination using a generalized regression neural network and interpolation methods: A case study in Kars, Turkey. Erzincan University Journal of Science and Technology. 2020;13(3):1424-1438. doi:10.18185/erzifbed.835878
Chicago
Akar, Alper, ve Berkant Konakoglu. 2020. “Local geoid determination using a generalized regression neural network and interpolation methods: A case study in Kars, Turkey”. Erzincan University Journal of Science and Technology 13 (3): 1424-38. https://doi.org/10.18185/erzifbed.835878.
EndNote
Akar A, Konakoglu B (01 Aralık 2020) Local geoid determination using a generalized regression neural network and interpolation methods: A case study in Kars, Turkey. Erzincan University Journal of Science and Technology 13 3 1424–1438.
IEEE
[1]A. Akar ve B. Konakoglu, “Local geoid determination using a generalized regression neural network and interpolation methods: A case study in Kars, Turkey”, Erzincan University Journal of Science and Technology, c. 13, sy 3, ss. 1424–1438, Ara. 2020, doi: 10.18185/erzifbed.835878.
ISNAD
Akar, Alper - Konakoglu, Berkant. “Local geoid determination using a generalized regression neural network and interpolation methods: A case study in Kars, Turkey”. Erzincan University Journal of Science and Technology 13/3 (01 Aralık 2020): 1424-1438. https://doi.org/10.18185/erzifbed.835878.
JAMA
1.Akar A, Konakoglu B. Local geoid determination using a generalized regression neural network and interpolation methods: A case study in Kars, Turkey. Erzincan University Journal of Science and Technology. 2020;13:1424–1438.
MLA
Akar, Alper, ve Berkant Konakoglu. “Local geoid determination using a generalized regression neural network and interpolation methods: A case study in Kars, Turkey”. Erzincan University Journal of Science and Technology, c. 13, sy 3, Aralık 2020, ss. 1424-38, doi:10.18185/erzifbed.835878.
Vancouver
1.Alper Akar, Berkant Konakoglu. Local geoid determination using a generalized regression neural network and interpolation methods: A case study in Kars, Turkey. Erzincan University Journal of Science and Technology. 01 Aralık 2020;13(3):1424-38. doi:10.18185/erzifbed.835878
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