Class: 947 (Mushroom), Feature: 1944

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	3	Focus is on the bottom part of the mushroom cap.
Main Object	5	The red region focuses on the lower part of the fungus composed of blades specific to the vast majority of fungi. this seems to be the attribute that leads to the identification of the object.
Main Object	4	Focus is on the body and stalk of the mushroom.
Main Object	5	The highlighted visual attributes is on a mushroom including the gills from the underside.
Main Object	5	The red region in the highlighted visual attributes focuses on the part of a mushroom.


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