Questions tagged [dependency-parsing]
92 questions
12
votes
2 answers
Dependency parsing tree in Spacy
I have a sentence John saw a flashy hat at the store
How to represent this as a dependency tree as shown below?
(S
(NP (NNP John))
(VP
(VBD saw)
(NP (DT a) (JJ flashy) (NN hat))
(PP (IN at) (NP (DT the) (NN…

Niranjan Sonachalam
- 1,545
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11
votes
1 answer
Extracting (subject,predicate,object) from dependency tree
I'm interested in extracting triples (subject,predicate,object) from questions.
For example, I would like to transform the following question :
Who is the wife of the president of the USA?
to :
(x,isWifeOf,y) ∧ (y,isPresidentof,USA)
x…

permanganate
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- 1
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- 19
10
votes
1 answer
How to get the index of a token in a sentence in spaCy?
Is there an elegant way to get the index of a word/token in its sentence?
I am aware of the attributes for tokens https://spacy.io/api/token#attributes
The i attribute returns the index within the whole parent document. But the parent document can…

Johannes Krämer
- 317
- 1
- 3
- 13
10
votes
1 answer
How to Get Dependency Parse Output from SyntaxNet
How do you get a dependency parse (not syntax tree) output from SyntaxNet (https://github.com/tensorflow/models/tree/master/syntaxnet) ? I see a description of dependency parsing...a description of how to train a model, but not how to get dependency…

user22490234
- 315
- 2
- 10
9
votes
2 answers
Does spacy take as input a list of tokens?
I would like to use spacy's POS tagging, NER, and dependency parsing without using word tokenization. Indeed, my input is a list of tokens representing a sentence, and I would like to respect the user's tokenization.
Is this possible at all, either…

dada
- 1,390
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7
votes
1 answer
Named Entity Recognition in aspect-opinion extraction using dependency rule matching
Using Spacy, I extract aspect-opinion pairs from a text, based on the grammar rules that I defined. Rules are based on POS tags and dependency tags, which is obtained by token.pos_ and token.dep_. Below is an example of one of the grammar rules. If…

Makoto Miyazaki
- 1,743
- 2
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- 39
7
votes
2 answers
Save SpaCy render file as SVG using DisplaCy
I have the following code:
import spacy
from spacy import displacy
from pathlib import Path
nlp = spacy.load('en_core_web_sm', parse=True, tag=True, entity=True)
sentence_nlp = nlp("John go home to your family")
svg = displacy.render(sentence_nlp,…

Kusi
- 785
- 1
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- 21
7
votes
1 answer
Definition of POS tag and Dependency label sets are used within Parsey McParseface?
The POS tags and Depedency labels output by Parsey McParseface are given in the tag-set and label-set files here respectively.
The Syntaxnet readme outlines that the model was trained on the Penn Treebank, OntoNotes and the English Web Treebanks.…

Michael Thomas
- 1,354
- 7
- 18
6
votes
0 answers
nltk stanford dependency parser throws an assertation error
I am using python3 and nltk with stanford dependency parser to parse a list of sentences. Then with the sentence I collect all nodes information. The following is my code, and it is executed in python3 and an virtualenv environment called…

lina
- 293
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- 8
5
votes
0 answers
CoreNLP: Cannot find node in dependency for word said
Frequently when running CoreNLP I am seeing this in stderr:
Cannot find node in dependency for word said
This seems to happen for the verb that connects a quote to its speaker, which is pretty concerning for my application, quote extraction /…

Edward Newell
- 17,203
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4
votes
1 answer
How to find whether a sentence contain a noun using spacy?
Currently doing a project in NLP. I need to find out whether a sentence have a noun in it. How can I achieve this using spacy?

ye_c_
- 85
- 6
4
votes
1 answer
How to retrieve the main intent of a sentence using spacy or nltk?
I have a use case where I want to extract main meaningful part of the sentence using spacy or nltk or any NLP libraries.
Example sentence1: "How Can I raise my voice against harassment"
Intent would be: "raise voice against harassment"
Example…

Subhabrata Mallick
- 101
- 1
- 6
4
votes
1 answer
Modern dependency parser for Russian
Is there any modern part-of-speech tagger + dependency parser for Russian language?
I need a tool or service that will be able to process plain text and output:
division into sentences
division into tokens
part-of-speech tags (fine-grained MSD tags…

adam.ra
- 1,068
- 1
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- 16
4
votes
3 answers
Parsey McParseface incorrectly identifying root on questions
It seems to me that Parsey has severe issues with correctly tagging questions and any sentence with "is" in it.
Text: Is Barrack Obama from Hawaii?
GCloud Tokens (correct):
Is - [root] VERB
Barrack - [nn] NOUN
Obama - [nsubj] NOUN
from - [adp]…

Phil
- 41
- 2
3
votes
1 answer
How to make a spacy matcher pattern using verb tense/mood?
I've been trying to make a specific pattern for a spacy matcher using Verbs tenses and moods.
I found out how to access morphological features of words parsed with spacy using model.vocab.morphology.tag_map[token.tag_], which prints out something…

WanyaaGzz
- 31
- 1