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Titre: Hierarchical Word Structure-based Parsing: A Feasibility Study on UD-style Dependency Parsing in Japanese

Annee: 2017

SiteWeb: http://compling.ucdavis.edu/iwpt2017/proceedings/pdf/IWPT8.pdf

bibtex: @InProceedings{tanaka-hayashi-nagata:2017:IWPT,
author = {Tanaka, Takaaki and Hayashi, Katsuhiko and Nagata, Masaaki},
title = {Hierarchical Word Structure-based Parsing: A Feasibility Study on UD-style Dependency Parsing in Japanese},
booktitle = {Proceedings of the 15th International Conference on Parsing Technologies},
month = {September},
year = {2017},
address = {Pisa, Italy},
publisher = {Association for Computational Linguistics},
pages = {56--60},
abstract = {In applying word-based dependency parsing such as Universal Dependencies (UD)
to Japanese, the uncertainty of word segmentation emerges for defining
a word unit of the dependencies.
We introduce the following hierarchical word structures to
dependency parsing in Japanese:
morphological units (a short unit word, SUW) and
syntactic units (a long unit word, LUW).
An SUW can be used to segment a sentence consistently,
while it is too short to represent syntactic construction.
An LUW is a unit including functional multiwords and
LUW-based analysis facilitates the capturing of syntactic structure
and makes parsing results more precise than SUW-based analysis.
This paper describes the results of a feasibility study on
the ability and the effectiveness of parsing methods
based on hierarchical word structure (LUW chunking$+$parsing)
in comparison to single layer word structure (SUW parsing).
We also show joint analysis of LUW-chunking and dependency parsing
improves the performance of identifying predicate-argument structures,
while there is not much difference between overall results of them. not much
difference between overall results of them.},
url = {http://www.aclweb.org/anthology/W17-63 8}
}



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