Class: 437 (Lighthouse), Feature: 1973

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	Focus is on tower which is a part of lighthouse
Main Object	5	The focus of the red region in the highlighted visual attributes is on the top of the light house.
Main Object	5	The red regions on all 5 pictures are completely overlapping with parts of the main object. there is no focus on the background, or another object, in any of the images.
Main Object	4	The main obect is lighthouse whose some part got focus.
Main Object	5	The focus is on the beacon of the lighthouse


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