PROSPER LAARI

Dr. PROSPER LAARI


Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 April 2016 in Journal of Mountain Science
Verified
Journal Article
Closed access
PDF file
PLPROSPER LAARI
PROSPER LAARI
Qingfeng GuanQingfeng Guan
Qingfeng Guan
DCDandan Cheng
Dandan Cheng
SSSudhir Kumar Singh
Sudhir Kumar Singh

2 March 2017 in Boletim de Ciências Geodésicas
Verified
Journal Article
Open access
PDF file
Yao Yevenyo ZiggahYao Yevenyo Ziggah
Yao Yevenyo Ziggah
YHYoujian Hu
Youjian Hu
PLPROSPER LAARI
PROSPER LAARI
Zhenyang HuiZhenyang Hui
Zhenyang Hui
Geocentric translation model (GTM) in recent times has not gained much popularity in coordinate transformation research due to its attainable accuracy. Accurate transformation of coordinate is a major goal and essential procedure for the solution of a number of important geodetic problems. Therefore, motivated by the successful application of Artificial Intelligence techniques in geodesy, this study developed, tested and compared a novel technique capable of improving the accuracy of GTM. First, GTM based on official parameters (OP) and new parameters determined using the arithmetic mean (AM) were applied to transform coordinate from global WGS84 datum to local Accra datum. On the basis of the results, the new parameters (AM) attained a maximum horizontal position error of 1.99 m compared to the 2.75 m attained by OP. In line with this, artificial neural network technology of backpropagation neural network (BPNN), radial basis function neural network (RBFNN) and generalized regression neural network (GRNN) were then used to compensate for the GTM generated errors based on AM parameters to obtain a new coordinate transformation model. The new implemented models offered significant improvement in the horizontal position error from 1.99 m to 0.93 m.