# Glossary

Japanese version

This is a collection of terms related to the MAYZ Toolkit.

maximum entropy (ME) model
  A probabilistic model. For details, see Amis Home Page.
derivation (specific usage in MAYZ)
  A tree structure representing a syntactic structure conforming to the target grammar theory. In addition to phrase information, it includes information about applied schemas. For example, in HPSG, it corresponds to a sign includes daughter structures, and in CCG, it corresponds to a derivation tree. In LTAG, it corresponds to a derived tree annotated with substitution/adjunction labels.
derivbank (specific to MAYZ)
  A collection of derivations. In MAYZ, it is created semi-automatically by converting a treebank.
lexbank (specific to MAYZ)
  A collection of terminals of derivations. It can be used to collect lexical information.
treebank
  A collection of sentences annotated with CFG-style phrase structures. Various treebanks, e.g. Penn Treebank, have been produced. The aim of the development with the MAYZ toolkit is to make a derivbank from a treebank.
parse tree (specific usage in MAYZ)
  In the MAYZ toolkit, trees in an input treebank are called "parse tree". Pharse structures in the target grammar theory are called "derivation".

MAYZ Toolkit Manual MAYZ Home Page Tsujii Laboratory