  Many visualization techniques have been created to explain the behavior of
computer vision models, but they largely consist of static diagrams that convey
limited information. Interactive visualizations allow users to more easily
interpret a model's behavior, but most are not easily reusable for new models.
We introduce Visual Feature Search, a novel interactive visualization that is
adaptable to any CNN and can easily be incorporated into a researcher's
workflow. Our tool allows a user to highlight an image region and search for
images from a given dataset with the most similar model features. We
demonstrate how our tool elucidates different aspects of model behavior by
performing experiments on a range of applications, such as in medical imaging
and wildlife classification.
