How Rude Are You?: Evaluating Politeness and Affect in Interaction

摘要

Recent research on conversational agents emphasises the need to build affective conversational systems with social intelligence. Politeness is an integral part of socially appropriate and affective conversational behaviour, e.g. consider the difference in the pragmatic effect of realizing the same communicative goal with either "Get me a glass of water mate!" or "I wonder if I could possibly have some water please?" This paper presents POLLy (Politeness for Language Learning), a system which combines a spoken language generator with an artificial intelligence planner to model Brown and Levinson's theory of politeness in collaborative task-oriented dialogue, with the ultimate goal of providing a fun and stimulating environment for learning English as a second language. An evaluation of politeness perceptions of POLLy's output shows that: (1) perceptions are generally consistent with Brown and Levinson's predictions for choice of form and for discourse situation, i.e. utterances to strangers need to be much more polite than those to friends; (2) our indirect strategies which should be the politest forms, are seen as the rudest; and (3) English and Indian native speakers of English have different perceptions of politeness.