In general a grammar describes a (possibly infinite) set of sentences with a finite structural description. Computational Grammar Induction (CGI) deals with the creation of computational models for identification of these infinite sets on the basis of a finite set of examples. CGI is a field in its own right, with its own internal research questions, many of which have no direct impact on the study of human language. Yet it is clear that computational models created by the CGI community might be of interest to the linguistic community because human language after all appears to be an infinite set, the description of which is learned efficiently in a relative short time. There are various domains in which...