Assertion: ground truth | /r/UsedFor | refer to process
Facets:
value: more specifically
type: MANNER
Source sentences:
text: More specifically, ground truth may refer to a process in which a "pixel" on a satellite image is compared to what is there in reality (at the present time) in order to verify the contents of the "pixel" on the image (noting that the concept of a "pixel" is somewhat ill-defined).