2019

Perturbation Sensitivity Analysis to Detect Unintended Model Biases

Prabhakaran, Vinodkumar, Hutchinson, Ben, Mitchell, Margaret

Understand

Data-driven statistical Natural Language Processing (NLP) techniques leverage large amounts of language data to build models that can understand language.

  • However, most language data reflect the public discourse at the time the data was produced, and hence NLP models are susceptible to learning incidental associations around named referents at a particular point in time, in addition to general linguistic meaning.
  • An NLP system designed to model notions such as sentiment and toxicity should ideally produce scores that are independent of the identity of such entities mentioned in text and their social associations.
  • For example, in a general purpose sentiment analysis system, a phrase such as I hate Katy Perry should be interpreted as having the same sentiment as I hate Taylor Swift.

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