Salient Imagenet

Class: 587 (Hammer), Feature: 765

This feature is spurious for class Hammer. It is the fifth most important feature for class Hammer.

Below, we display the five Hammer images that most highly activate the feature, along with the Neural Activation Map (heatmap) and Feature Attack for each image. These are the same as the images shown to crowdworkers to annotate this class-feature pair.

We additionally provide the full responses of the five crowdworkers that annotated this pair, as well as links to other related pairs (i.e. same class or same feature).

MTurk Worker Annotations

core

spurious

core

spurious

Main Focus	Confidence	Explanation
Separate Object	3	Most of the images are not of hammers and the red regions in those are not on hammers.
Separate Object	4	Not everything is a hammer.
Main Object	4	Not all pictures have a hammer, but the heatmap always shows something more like "t"shaped like a hammer, so somewhat it's calibrated to focus at the hammer's head
Main Object	3	Some pictures focus on the top part of a hammer but the pictures also include a gun and drill.
Separate Object	3	All the images is not focused on some part of the object or background, it mostly focused on other object,

spurious

Related Class-Feature Pairs

Important Features for Hammer

There are 3 features annotated as core and 2 features annotated as spurious for Hammer. Core features include 507, 1227, 1455. Spurious features include 765, 1062.

Classes where Feature 765 is among Most Important (i.e. top-5)

Feature 765 is core for the following classes: Buckle, Cleaver, Hatchet, Pencil Sharpener, Electrical Switch.
Feature 765 is spurious for the following classes: Hammer, Holster.