Class: 491 (Chainsaw), Feature: 1734

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	The focus is on the engine which is part of the chainsaw
Main Object	5	Focus is on part of the chainsaw
Main Object	4	In the first image is focused on the handles of the chainsaw. the second image is focussed on the carburetor box. the third image is focussed on the choke and its surrounded other parts. in the fourth and the fifth image the focus is on the carburetor box.
Main Object	5	Highlighted visual attributes is on main object chainsaw
Main Object	5	Focus is on the body of the chainsaw


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