Class: 953 (Pineapple), Feature: 96

MTurk Worker Annotations

We now show the responses from five crowdworkers used to annotate this class-feature pair as core or spurious. Workers first denote if the focus of the image is on the main object (core), or a separate or background object (spurious). They also mark their confidence on a scale of 1 to 5, and provide written explanations for their annotation.



Main Focus	Confidence	Explanation
Main Object	4	It's debatable wether the leaves of a pineapple tree are part of a pineapple (main object), i've considered them to be a part of the main object, because it's shown in one of the 3 reference pictures. all 5 images have red regions fully overlapping with, and focusing on, the leaves of the pineapple tree (part of the main object.)
Background	4	Focus is on the leaf
Background	5	Highlighted areas are focused on the grass and plants around the pineapple, but not the pineapple itself.
Background	4	Focus is on the grass surrounding the pineapple.
Separate Object	5	Most of the images are mainly focused on grasses only not pineapple.


Votes for core: 1, Votes for spurious: 4. Feature is thus annotated as spurious for the class.