Class: 836 (Sunglasses), Feature: 1651

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 bridge of the sunglasses.
Main Object	2	Highlighted area focusing on the bridge within the sunglasses, but i would still classify that as part of the sunglasses.
Main Object	5	The main focus is the sunglass, and in these images the main focus is right on the sunglass, which is useful and relevant.
Main Object	5	Focus is on the central part of the image in the part of the nose fitting in the middle of the glasses
Background	3	The red region in the highlighted visual attributes focuses on the background of the sunglass.


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