Act or Clarify? Modeling Sensitivity to Uncertainty and Cost in Communication
This work addresses decision-making in communication for AI and cognitive science, but it is incremental as it builds on existing rational models.
The paper tackled the problem of how agents decide between acting under uncertainty or seeking clarification, finding that humans adjust their clarification-seeking behavior based on the interaction of uncertainty and action costs, as predicted by an expected regret model.
When deciding how to act under uncertainty, agents may choose to act to reduce uncertainty or they may act despite that uncertainty.In communicative settings, an important way of reducing uncertainty is by asking clarification questions (CQs). We predict that the decision to ask a CQ depends on both contextual uncertainty and the cost of alternative actions, and that these factors interact: uncertainty should matter most when acting incorrectly is costly. We formalize this interaction in a computational model based on expected regret: how much an agent stands to lose by acting now rather than with full information. We test these predictions in two experiments, one examining purely linguistic responses to questions and another extending to choices between clarification and non-linguistic action. Taken together, our results suggest a rational tradeoff: humans tend to seek clarification proportional to the risk of substantial loss when acting under uncertainty.