Using the Helmert-transformation to reduce dimensionality in a mixed model: Application to a wage equation with worker and firm heterogeneity. [PDF]
A model for matched data with two types of unobserved heterogeneity is considered — one related to the observation unit, the other to units to which the observation units are matched.
Nilsen, Øivind Anti +2 more
core +2 more sources
Assessment of the human response to acute mental stress-An overview and a multimodal study. [PDF]
PLoS One, 2023 Ernst H +5 more
europepmc +1 more source
, 2014 Seven parameters of Helmert transformation are estimated using three-dimensional Cartesian coordinates in Sweden. Here, two cases are studied. Cartesian coordinates of RT90 and SWEREFF 93 in mm level accuracy for Case A are generated from secondary ...
Islam, Md. Tariqul,
core
Contribution of PPP with Ambiguity Resolution to the Maintenance of Terrestrial Reference Frame
Remote SensingPrecise Point Positioning (PPP) provides static positioning at the millimeter level and kinematic positioning ranging from millimeters to decimeters globally.
Ruyuan Wang +4 more
doaj +1 more source
Multi-Source Soil Moisture Data Fusion Based on Spherical Cap Harmonic Analysis and Helmert Variance Component Estimation in the Western U.S. [PDF]
Sensors (Basel), 2023 Chen H +5 more
europepmc +1 more source
Local Coordinate Transformation System With Non-sibsonian
, 2009 Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2009Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2009Günümüzde harita üretimi ve kullanımında, koordinat ve konum bilgisinin doğru ve ...
Ceylan, Elif
core
A data-based power transformation for compositional data [PDF]
, 2011 Compositional data analysis is carried out either by neglecting the compositional constraint and applying standard multivariate data analysis, or by transforming the data using the logs of the ratios of the components.
Preston, Simon +5 more
core
'Investing' in care for old age? An examination of long-term care expenditure dynamics and its spillovers. [PDF]
Empir Econ, 2023 Costa-Font J, Vilaplana-Prieto C.
europepmc +1 more source
HUNGARIAN GPS NETWORK TRANSFORMATION INTO DIFFERENT DATUMS AND PROJECTION SYSTEMS
, 2003 The results of the GPS network adjustment are the adjusted co-ordinate components of vectors, the co-ordinates of network stations and accuracy data.
Szűcs, László +2 more
core
Environmental regulation, R&D investment, and green technology innovation in China: Based on the PVAR model. [PDF]
PLoS One, 2022 Zhang Y, Chen H, He Z.
europepmc +1 more source