Class: 133 (Bittern Bird), Feature: 957

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	3	Red focus is on the body of bird.
Main Object	5	The main object is a bittern. the focus of the red region on the highlighted visual attributes is on the bird's body and head, showing its main parts. because of that, i choose that focus is on some part of the main object.
Main Object	4	Focus is on the neck and torso of the bittern.
Main Object	5	I am extremely confident that the red area is focused on the throat of the bittern bird, because i can see all the feather detail.
Main Object	4	The main object is bittern bird whose some part got focus.


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