About: http://webisa.webdatacommons.org/342127430

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	If k is an array of shape (h, w), then k[i] is an array of shape (w,). when you do i-k[i], numpy will do its broadcasting magic, and you will get an array of shape (w,).
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com