About: http://webisa.webdatacommons.org/123948060

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	Various approaches can be used for head tracking, gaze tracking, or other such purposes as well.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com