AUTHOR=Davis Ernest 

TITLE=Unanswerable Questions About Images and Texts

JOURNAL=Frontiers in Artificial Intelligence

VOLUME=3

YEAR=2020

URL=https://www.frontiersin.org/journals/artificial-intelligence/articles/10.3389/frai.2020.00051

DOI=10.3389/frai.2020.00051

ISSN=2624-8212

ABSTRACT=<p>Questions about a text or an image that cannot be answered raise distinctive issues for an AI. This note discusses the problem of unanswerable questions in VQA (visual question answering), in QA (textual question answering), and in AI generally.</p>