nlp - 测试令牌是否是 spaCy 中的连词头

Question

问题

有没有办法检测令牌是否是 spaCy 中的连词头？

问题描述

我想要以下句子：

“美国人和穆斯林朋友和公民、纳税公民和各国的穆斯林都感到震惊，无法相信我们在电视屏幕上看到的一切。”

...返回以下内容custom_chunks：

custom_chunks = [
    Americans,
    Muslim friends, 
    citizens,          # `poss` modifier Muslim to be added as a hidden element
    tax-paying citizens, 
    Muslims in nations, 
    what, 
    what, 
    we, 
    TV screens]

这句话在其主要连词中包含一个子连词，这使得任务更加复杂：

# main conjunction
"Americans" : Conjuncts(friends, citizens, Muslims, citizens)
"Americans" : Children(Both, and, friends, ,, citizens, ,, and, Muslims)

# sub-conjunction
"Friends : Conjuncts(Americans, citizens, Muslims, citizens)
"Friends" : Children(Muslim, and, citizens) # `children` attribute correctly identifies the sub-conjunction tokens

目前，我正在使用以下代码来产生所需的答案：

# if the word has conjuncts but does not have a `conj` dependency it is the head of the main conjunction.
if word.conjuncts and word.dep != conj:
        # prev_end is the current word index
    prev_end = word.i         
    yield word.left_edge.i, word.i + 1, cc_label    
            
# if the word has a `conj` dependency and its subtree contains `conj` dependencies, it is the head of a sub-conjunction to a main conjunction
elif word.dep == conj and list(word.rights) and conj in [t.dep for t in word.rights]:
    # prev_end is the current word index
    prev_end = word.i            
    yield word.left_edge.i, word.i + 1, cc_label
    
# for when the word is not part of a conjunction    
elif word.dep in np_deps: # `conj` added to np_deps for other tokens of a conjunction
    # prev_end marks the right edge of the token subtree
    prev_end = word.right_edge.i                     
    yield word.left_edge.i, word.right_edge.i + 1, cc_label

用于识别连词头和子连词头的ifandelif语句感觉有点 hacky，是否有更肯定的方法来识别标记是否是连词头，或者可以请求这样的属性？

标签： nlpspacydependency-parsing