Class: 20 (American Dipper), Feature: 820

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
Background	5	The main object is an water ouzel, dipper, a bird. the focus of the red region on the highlighted visual attributes is on the background of these images, showing something that's not relevant for the visual attributes since the main object is an water ouzel, dipper (a bird). because of that, i choose to focus is on the background of the main object.
Background	4	Focus is on the grassland surrounding the dipper.
Background	3	Red focus is on the back ground.
Background	5	Highlighted areas are focused on the background behind the bird.
Background	4	The red region in the highlighted visual attributes focuses on the background of a water ouzel.


Votes for core: 0, Votes for spurious: 5. Feature is thus annotated as spurious for the class.