stanford openie python

python for Stanford Openie（Macos/Linux）

支持最新的Corenlp庫4.5.3（截至2023-03-10）。

開放信息提取（打開IE）是指從純文本中提取結構化關係三元，因此這些關係的模式無需提前指定。例如，巴拉克·奧巴馬（Barack Obama）出生於夏威夷，將創建一個三重(Barack Obama; was born in; Hawaii) ，對應於“出生於”的開放式領域關係。 Corenlp是本文所述的開放IE系統的Java實現：

更多信息可以在此處找到。 Openie庫僅提供英文。

安裝

您需要安裝Python3和Java（JRE）。 Java由Corenlp庫使用。

確保首先安裝Java。

java -version

然後安裝自由。

pip install stanford_openie

例子

 from openie import StanfordOpenIE

# https://stanfordnlp.github.io/CoreNLP/openie.html#api
# Default value of openie.affinity_probability_cap was 1/3.
properties = {
    'openie.affinity_probability_cap' : 2 / 3 ,
}

with StanfordOpenIE ( properties = properties ) as client :
    text = 'Barack Obama was born in Hawaii. Richard Manning wrote this sentence.'
    print ( 'Text: %s.' % text )
    for triple in client . annotate ( text ):
        print ( '|-' , triple )

    graph_image = 'graph.png'
    client . generate_graphviz_graph ( text , graph_image )
    print ( 'Graph generated: %s.' % graph_image )

    with open ( 'corpus/pg6130.txt' , encoding = 'utf8' ) as r :
        corpus = r . read (). replace ( ' n ' , ' ' ). replace ( ' r ' , '' )

    triples_corpus = client . annotate ( corpus [ 0 : 5000 ])
    print ( 'Corpus: %s [...].' % corpus [ 0 : 80 ])
    print ( 'Found %s triples in the corpus.' % len ( triples_corpus ))
    for triple in triples_corpus [: 3 ]:
        print ( '|-' , triple )
    print ( '[...]' )

預期輸出

 |- {'subject': 'Barack Obama', 'relation': 'was', 'object': 'born'}
|- {'subject': 'Barack Obama', 'relation': 'was born in', 'object': 'Hawaii'}
|- {'subject': 'Richard Manning', 'relation': 'wrote', 'object': 'sentence'}
Graph generated: graph.png.
Corpus: According to this document, the city of Cumae in Ćolia, was, at an early period [...].
Found 1664 triples in the corpus.
|- {'subject': 'city', 'relation': 'is in', 'object': 'Ćolia'}
|- {'subject': 'Menapolus', 'relation': 'son of', 'object': 'Ithagenes'}
|- {'subject': 'Menapolus', 'relation': 'was Among', 'object': 'immigrants'}

它將在graph.png中生成一個graphViz點：

注意：確保事先安裝了GraphViz。嘗試運行dot命令以查看是否是這種情況。如果沒有，如果您在Ubuntu上運行，請運行sudo apt-get install graphviz 。在MacOS上，它是brew install graphviz 。

參考

• https://www.kaggle.com/asitang/stanford-resources
• https://www.kaggle.com/geofila/corenlp?select=stanford-corenlp-full-2018-10-05

引用

 @misc{StanfordOpenIEWrapper,
  author = {Philippe Remy},
  title = {Python wrapper for Stanford OpenIE},
  year = {2020},
  publisher = {GitHub},
  journal = {GitHub repository},
  howpublished = {url{https://github.com/philipperemy/Stanford-OpenIE-Python}},
}

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