id	keyword
esrj-78880	gps
esrj-78880	observables
esrj-78880	carrier
esrj-78880	positioning
esrj-78880	ann
esrj-78880	data
esrj-78880	eesc
esrj-78880	figure
esrj-78880	neural
esrj-78880	artificial
esrj-78880	test
esrj-78880	network
esrj-78880	training