Luke, I am your father: dealing with out-of-domain requests by using movies subtitles

Abstract

Even when the role of a conversational agent is well known users persist in confronting them with Out-of-Domain input. This often results in in- appropriate feedback, leaving the user unsatisfied. In this paper we explore the automatic creation/enrichment of conversational agents’ knowledge bases by tak- ing advantage of natural language interactions present in the Web, such as movies subtitles. Thus, we introduce Filipe, a chatbot that answers users’ request by tak- ing advantage of a corpus of turns obtained from movies subtitles (the Subtle corpus). Filipe is based on Say Something Smart, a tool responsible for index- ing a corpus of turns and selecting the most appropriate answer, which we fully describe in this paper. Moreover, we show how this corpus of turns can help an existing conversational agent to answer Out-of-Domain interactions. A prelimi- nary evaluation is also presented.