| automatic extraction of subcategorization from corpora we describe a novel technique and implemented system for constructing a subcategorization dictionary from textual corpora. each dictionary entry encodes the relative frequency of occurrence of a comprehensive set of subcategorization classes for english. an initial experiment, on a sample of 14 verbs which exhibit multiple complementation patterns, demonstrates that the technique achieves accuracy comparable to previous approaches, which are all limited to a highly restricted set of subcategorization classes. we also demonstrate that a subcategorization dictionary built with the system improves the accuracy of a parser by an appreciable amount. we use a grammar and a sophisticated parsing tool for argument-adjunct distinction. |