Class: 749 (Quill), Feature: 1396

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	5	The focus of the red region in the highlighted visual attribute is on quill pen.
Main Object	4	Focus is on feather of quill
Main Object	4	Focus is on the pointing edge of the quill pen, which is the main object.
Main Object	5	Most of the images are mainly focused on main object's body parts.
Main Object	3	Focus is largely on the base of the quill


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