期刊名称：Conference on European Chapter of the Association for Computational Linguistics (EACL)
出版年度：2011
卷号：2011
出版社：ACL Anthology
摘要：The local multi bottom-up tree transducer is
introduced and related to the (non-contiguous)
synchronous tree sequence substitution grammar.
It is then shown how to obtain a weighted
local multi bottom-up tree transducer from
a bilingual and biparsed corpus. Finally,
the problem of non-preservation of regularity
is addressed. Three properties that ensure
preservation are introduced, and it is discussed
how to adjust the rule extraction process such
that they are automatically fulfilled.
