Class: 993 (Gyromitra), Feature: 2045

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	Most of the images focusing on some part of the main object.
Main Object	5	Focus is on head of fungi, thought it leaves out stalk mostly.
Main Object	3	Gyromitra is highlighted in red colour.
Main Object	5	The red region in the highlighted visual attributes focuses on the gyromitra.
Main Object	5	The main object is an gyromitra. the focus of the red region in the highlighted visual attributes is on the fungi's body, showing its main parts. because of that, i choose focus is on some part of the main object.


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