2019

Countering Language Drift via Visual Grounding

Lee, Jason, Cho, Kyunghyun, Kiela, Douwe

Understand

Emergent multi-agent communication protocols are very different from natural language and not easily interpretable by humans.

  • We find that agents that were initially pretrained to produce natural language can also experience detrimental language drift: when a non-linguistic reward is used in a goal-based task, e.g.
  • some scalar success metric, the communication protocol may easily and radically diverge from natural language.
  • We recast translation as a multi-agent communication game and examine auxiliary training constraints for their effectiveness in mitigating language drift.

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