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A Brief Overview of Cooperative Answering

A cooperative response to a query is an indirect response that is more helpful to the user than a direct, literal response would be. Interest in cooperative responses arose in the context of natural-language query answering, but the concept carries over, with suitable modifications, to a formal-language setting. Cooperative answering has been studied over the last thirty years, but, until recently, work has mostly been confined to academia. This is changing now, however, and we argue that cooperative answering has an important role to play in the surge of innovation that is now taking place in search and information retrieval.