CHAVE: Topics and Questions on the Portuguese Participation in CLEF

In this paper we report the work done by Linguateca in order to add Portuguese to two tracks of CLEF, namely the adhoc IR task and the QA task. We start by a brief description of Linguateca's aims and the way we see CLEF from the standpoint of Portuguese language processing; we then document several interesting problems posed by the tasks we added to organize, and offer some suggestions for improvement, as well as raise some possibly controversial points for discussion. Finally, we describe briefly the creation of the Portuguese collection and the process of checking answers in it.