Class: 911 (Wool), Feature: 1228

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	Focus is on the strands of wool.
Main Object	5	The focus is to highlight the center of the wool rolls
Main Object	5	The main focus is the wool, and in these images the main focus is right on the wool, which is useful and relevant.
Main Object	5	The overlap is mainly focused on the edges of the predicted object.
Main Object	2	Technically the highlighted area is over wool yarn, but there is no clear indicator of which part of the wool.


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