id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-232959-jcnvnn2k	Arnal, Raquel P'erez	Private Sources of Mobility Data Under COVID-19	2020-07-14		.txt	text/plain	5965	334	60	To partially overcome these issues, in this work we investigate the relation between the different private data sources, and how can they be used complementary to provide a better understanding of mobility. This includes a general study of mobility trends for all regions and data sources ( §4.1), a discussion on the anomalies observed ( §4.2), an analysis on the daily trends ( §4.3) and some insights on the new normality ( §4.4). The second one, movement between tiles, estimates mobility by computing how many different tiles are visited by the sample of people, compared with the same number during the same day of the week previous to the pandemics (February 2020) [12] . In this work we consider the use of private data sources (Google and Facebook) for assessing the levels of mobility in a country like Spain. Regarding private data sources, we have shown the differences between using an absolute measure (like Facebook) and a relative measure (like Google).	./cache/cord-232959-jcnvnn2k.txt	./txt/cord-232959-jcnvnn2k.txt