مشاهده مشخصات مقاله
Building Deep Dependency Structure from Partial Parses
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Conference |
چهاردهمین کنفرانس بینالمللی سالانه انجمن کامپیوتر ایران |
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Abstract |
Increasing the domain of locality by using treeadjoining-
grammars (TAG) encourages some
researchers to use it as a modeling formalism in their
language application. But parsing with a rich
grammar like TAG faces two main obstacles: low
parsing speed and a lot of ambiguous syntactical
parses. We uses an idea of the shallow parsing based
on a statistical approach in TAG formalism, named
supertagging, which enhanced the standard POS tags
in order to employ the syntactical information about
the sentence. In this paper, an error-driven method in
order to approaching a full parse from the partial
parses based on TAG formalism is presented. These
partial parses are basically resulted from supertagger
which is followed by a simple heuristic based light
parser named light weight dependency analyzer
(LDA). Like other error driven methods, the process of
generation the deep parses can be divided into two
different phases: error detection and error correction,
which in each phase, different completion heuristics
applied on the partial parses. The experiments on Penn
Treebank show considerable improvements in the
parsing time and disambiguation process. |
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قیمت |
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برای اعضای سایت : 100,000 Rial
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برای دانشجویان عضو انجمن : 20,000 Rial
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برای اعضای عادی انجمن : 40,000 Rial
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خرید مقاله
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