In this chapter, the authors discuss the main outcomes from both the most recent literature and the research activities summarized in this book. Of course, a complete review is not possible. It is evident that each issue related to face recognition in adverse conditions can be considered as a research topic in itself and would deserve a detailed survey of its own. However, it is interesting to ...

Abs t r ac t Why do we speak? Because we want to influence each other's behavior. The relevance of a speech act can measure its nsefulness. In this paper I argue that (i) the relevance of a speech act depends on the 'language game' one is involved in; (ii) notions of relevance can be defined using decision, information and game theory, and can be used for linguistic applications; and (fii) the ...