The Wall Street Journal experiment (and useful programs)

This document gives information on parsing experiments applied to the standard Wall Street Journal corpus (``Standard'' means that this corpus has been widely used for exhibiting parsing tests of various models). The tested syntactic models are : standard Stochastic Context-Free Grammars, standard Tree Substitution Grammars, Gibbsian Context-Free Grammars and Gibbsian Tree Substitution Grammars. The parsing experiments are described with deep details so as to enable reader to easily redo the experiments from scratch (i.e. preparing the database, training and evaluating the models). The programs developped for these experiments are also described.