"Simple" means smooth boundary except for discrete corners, finite number of holes. Usually "easy to draw."
A shape has left volume. A line segment is not a shape and a point is not a shape. "Fractals" (BP797) are not considered shapes here.
Assumed contained in bounding box.
The "world" of a Bongard Problem is the pattern that all examples, left and right, seem to together satisfy.
Thus for a BP to be a left example in this meta-BP, it must only include simple 2D shapes as examples, and there must be no other more specific simple pattern all examples satisfy. |