  Machine learning models are powerful but fallible. Generating adversarial
examples - inputs deliberately crafted to cause model misclassification or
other errors - can yield important insight into model assumptions and
vulnerabilities. Despite significant recent work on adversarial example
generation targeting image classifiers, relatively little work exists exploring
adversarial example generation for text classifiers; additionally, many
existing adversarial example generation algorithms require full access to
target model parameters, rendering them impractical for many real-world
attacks. In this work, we introduce DANCin SEQ2SEQ, a GAN-inspired algorithm
for adversarial text example generation targeting largely black-box text
classifiers. We recast adversarial text example generation as a reinforcement
learning problem, and demonstrate that our algorithm offers preliminary but
promising steps towards generating semantically meaningful adversarial text
examples in a real-world attack scenario.
