About: http://webisa.webdatacommons.org/21667694

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	The software then applies a statistical technique called principal component analysis (PCA) to generate a digital signature - a list of parameters that characterise an item according to whether it has sleeves or buttons, for example.
http://www.w3.org/ns/prov#wasQuotedFrom	newscientist.com