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Tokenizer POS-tagger and Dependency-parser for Classical Chinese

Project description

Current PyPI packages

UD-Kanbun

Tokenizer, POS-Tagger, and Dependency-Parser for Classical Chinese Texts (漢文/文言文), working on Universal Dependencies.

Basic usage

>>> import udkanbun
>>> lzh=udkanbun.load()
>>> s=lzh("不入虎穴不得虎子")
>>> print(s)
# text = 不入虎穴不得虎子
1			ADV	v,副詞,否定,無界	Polarity=Neg	2	advmod	_	Gloss=not|SpaceAfter=No
2			VERB	v,動詞,行為,移動	_	0	root	_	Gloss=enter|SpaceAfter=No
3			NOUN	n,名詞,主体,動物	_	4	nmod	_	Gloss=tiger|SpaceAfter=No
4			NOUN	n,名詞,固定物,地形	Case=Loc	2	obj	_	Gloss=cave|SpaceAfter=No
5			ADV	v,副詞,否定,無界	Polarity=Neg	6	advmod	_	Gloss=not|SpaceAfter=No
6			VERB	v,動詞,行為,得失	_	2	parataxis	_	Gloss=get|SpaceAfter=No
7			NOUN	n,名詞,主体,動物	_	8	nmod	_	Gloss=tiger|SpaceAfter=No
8			NOUN	n,名詞,,関係	_	6	obj	_	Gloss=child|SpaceAfter=No

>>> t=s[1]
>>> print(t.id,t.form,t.lemma,t.upos,t.xpos,t.feats,t.head.id,t.deprel,t.deps,t.misc)
1   ADV v,副詞,否定,無界 Polarity=Neg 2 advmod _ Gloss=not|SpaceAfter=No

>>> print(s.kaeriten())
虎穴虎子

>>> print(s.to_tree())
 <     advmod
 ─┴─┬─┐ root
 <   nmod
 ─┘<  obj
 <    advmod
 ─┴─┐< parataxis
 <    nmod
 ─┘<   obj

>>> f=open("trial.svg","w")
>>> f.write(s.to_svg())
>>> f.close()

trial.svg udkanbun.load() has only one option udkanbun.load(MeCab=False). By default, the UD-Kanbun pipeline uses MeCab for tokenizer and POS-tagger, then uses UDPipe for dependency-parser. With the option MeCab=False the pipeline uses UDPipe for all through the processing. udkanbun.UDKanbunEntry.to_tree() has an option to_tree(BoxDrawingWidth=2) for old terminals, whose Box Drawing characters are "fullwidth". to_tree(kaeriten=True,Japanese=True) is convenient for Japanese users.

You can simply use udkanbun on the command line:

echo 不入虎穴不得虎子 | udkanbun

Installation for Linux

Binary wheel is available for Linux, and is installed by default when you use pip:

pip install udkanbun

Installation for Cygwin64

For installing in Cygwin64, make sure to get gcc-g++ git python37-pip python37-devel swig packages, and then:

pip3.7 install git+https://github.com/KoichiYasuoka/mecab-cygwin64
pip3.7 install udkanbun

Use python3.7 command in Cygwin64 instead of python. For installing in old Cygwin (32-bit), try to use mecab-cygwin32 instead of mecab-cygwin64.

Installation for Jupyter Notebook (Google Colaboratory)

!pip install udkanbun

Author

Koichi Yasuoka (安岡孝一)

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