About: http://webisa.webdatacommons.org/161944811

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	As shown in FIG. 6, if any of both parameters sadx and sady is greater than the other one multiplied by two, one of the orthogonal heading alternatives is set, according to the sign of the corresponding parameter sdx or sdy.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk