A Set of NP-Extraction Rules for Portuguese: Defining, Learning and Pruning.

This paper presents a set of rules for extracting noun phrases from Portuguese texts. We describe how this set was gradually obtained, starting from a machine learned set of transformation rules that was manually reviewed. The noun phrases extracted by these transformations were given as input to another learner that synthesized rules for breaking up complex noun phrases into simpler ones. The results of these processes applied to a Brazilian Portuguese corpus are evaluated. [ABSTRACT FROM AUTHOR]