Class: 902 (Whistle), Feature: 403

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 upper surface of the whistle.
Main Object	5	The focus of the red region in the highlighted visual attributes is on whistles.
Main Object	4	Focus in the structure of the whistle
Main Object	4	All pictures have red regions significantly overlapping with some part of the main object. pictures 1 and 5 have red regions overlapping with the background, but it doesn't seem for me the background is the main focus on those pictures.
Main Object	4	The main obect is whistle whose some part got focus.


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