Questions tagged [dependency-grammar]

Dependency grammar, often abbreviated as DG, is a particular approach to the syntax of natural languages. DGs view words as directly linked to each other, whereby the links are directed. Phrases consist of a head/root word and its dependents.

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86 views

SVO triple in case of missing S or V or O?

hi I'm new to phrase/dependency structure. For a project of mine I want to extract from any sentence a meaningful structure with 3 items i.e. triple. In general case the Subject-Verb-Object is ideal....
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Where does supplementation fit in?

As far as I can see, the structure of supplementary constructions like Karen, being ill, was unable to go or John – her father – was unable to walk her down the aisle or maybe a washer-dryer ...
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How to extract example sentences from linguistics papers

Does anyone know of a good tool to grab all example sentences used in a paper so they could be processed via an NLP pipeline? I have udpipe in mind especially: I'd like to take sentences from one or ...
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Why does matching any root of a question to any root of potential answers gives better text understanding results?

I'm trying to find a way to prevent Intelligent Agents with Reading Comprehension and Question Answering abilities to answer question from documents from a given dataset. After dependency parsing we ...
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Specification of Dependency Grammar

My understanding is that, while natural languages aren't completely context-free, you can get a good approximation of a specification of English in Backus-Naur form, in that if you look at a given ...
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What features are good for dependency parsing?

I am trying to implement a graph based dependency parser. Since I come from a computer engineering perspective, I have trouble finding the features. Assuming that we have a (head,dependent) relation ...
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Adjunct domain and Argument domain

I am attempting a problem with anaphora resolution. I need help with some terms in the Lappin and Leass' paper. In the paper, it is mentioned A pronoun P is non-coreferential with a (non-...
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In what ways might dependency grammar be a better fit for free word order languages?

I believe it is often cited that dependency grammars are more adequate for free word order languages. How actually, is dependency grammar more descriptive or less limited, than constituency grammar, ...
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German Dependency Parsing - question about dependencies between “sich ____ lassen”

I'm working on project regarding German dependency parsing, and came across something I'm a bit unsure about. Using a parser, when given an input (whether it be in a sentence or just the verbs) which ...
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How to interpret the dependency parse tree of an English Slot Grammar?

I am reading the paper titled Deep parsing in Watson (DOI: 10.1147/JRD.2012.2185409) and need help understanding this figure: This is the paragraph that describes the tree in the figure above: An ...
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Induction of semantics for grammars of natural languages (as opposed to syntax)

I am learning about combinatory categorial grammars and the formal semantics of natural language, course by Partee http://people.umass.edu/partee/MGU_2005/MGU05_formal_semantics.htm (especially ...
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Treatment of copular verb in dependency parse of Google Natural Language API vs Stanford CoreNLP parser

Basically my question is what is the correct treatment of copular verbs in the following sentence: "The car is red." According to Google Natural Language API, the root is the verb "is" and the "car" ...
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Governors of adjectives in dependency grammars

In some dependency treebanks for Germanic languages, nouns in subject position are assigned the governors of their corresponding predicative adjectives, as opposed to the copular verb connecting the ...
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Computational model of dependency parsing

I come from a computer science perspective and am trying to understand dependency parsing. What is the formal (computational) model for dependency parsing? The computational model for constituency ...
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136 views

X-bar theory without movement

Are there any theories out there that use X-bar theory but deny movement (like Dependency Syntax can)?
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260 views

Mapping Minipar dependencies to Stanford Parser dependencies

I am trying to use the algorithm in Qiu et al., 2011, "Opinion Word Expansion and Target Extraction through Double Propagation" for my research. However, in the paper, they use Minipar for dependency ...
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How should “at some time” be tagged in Universal Dependencies framework?

I want to tag a sentence Jones was unemployed at some time before he graduated. with UD tags. I'm not sure how to tag at some time. Stanford parser suggests the reading: case (time-6, at-4) ...
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Using (e.g.) Stanford NLP for retrieving specific “indirect” objects

I am a computer scientist using Stanford NLP for extracting a Semantic Graph from plain text. Through this tool I am already getting the universal dependencies but now I want to get all the possible ...
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Is there a grammar of syntax that takes into account inherent syntactic ambiguity in natural languages?

Natural languages necessarily have certain inherent ambiguity. If there were a natural language without inherent ambiguity, then one could have easily adopted such a natural language and used it as a ...
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how to train parser using maltparser?

i have developed a small dependency treebank and now i want to run maltparser on it.i am working on urdu which is written in right-to-left (RTL) form. when i try to train parser it gives following ...
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What are the upsides of using dependency parsing over constituency parsing?

I am looking for an exhaustive list of upsides of using dependency parsing over constituency parsing (if possible, with references for each upside).
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“Toy” Tools for Dependency Parsing?

I plan to work with dependency parsing, as an intermediate step in a text understanding problem. I'm also still trying to understand the terminology and methods. Any pointers (or providers) of tools (...
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Maltparser vs Freeling for Spanish dependency parser

I need to parse a Spanish corpus with syntactic dependencies. I have tried both Freeling and Maltparser, they both give similar results, but with some divergence. I need the highest accuracy possible, ...
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What are the syntactic functions in this example of Dutch cross-serial dependencies?

Sentences like the following occur frequently as examples for cross-serial dependencies in Dutch. Ik dacht dat Jan Piet Marie zag helpen lezen. Often the dependencies are depicted only as arcs ...
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800 views

how does a dependency grammar finds a root?

The verb is used an a root in dependency structure.What if we have multiple verbs in a sentence, which one will be the root of sentence. also what will be the dependency relation between two verbs ???
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308 views

Evidence for/against Lexical integrity principle

Some (mostly lexicalist) theories of syntax assume that there's a 1-to-1 relationship between the words in a sentence and the nodes in its syntax tree. It seems pretty obvious to me. Is there ...
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Kuryłowicz on cases and prepositions

I've read Kuryłowicz's classic paper "Le problème du classement des cas" and I'm not sure how to interpret what he says about the difference between case affixes and prepositions. Does he in effect ...
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521 views

Dependency tree with “seem”

Could someone please tell me what's the dep. tree of "John seemed to fall asleep"? The problem is I don't know if "John" depends on "seem" or "fall".
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Monoclausality in dependency trees

I've read Alex Alsina's papers on complex predicates and I understand why they are a problem for the syntax-semantics interface. If we wanted to build a syntax tree for a complex predicate in Romance, ...
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342 views

How do dependency grammars account for information structure

In phrase structure grammars, discourse functions (topic, focus) have structural positions (cf. topicalization in English, right-edge focus in Russian, clause-initial focus in Welsh, preverbal focus ...
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3answers
499 views

How do formal theories analyse the syntax of polysynthetic languages?

How is syntax of polysynthetic languages (e.g. Inuktitut, Mohawk) represented in formal theories of syntax? In many cases, a sentence consists of only one or two words so the syntax tree is rather ...
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How do surface and deep syntax differ in dependency grammars?

Consider the sentence I will go to Belfast tomorrow. How do its surface and deep syntax tree differ in a dependency-based grammar?
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Where can I find a good primer of dependency grammar?

I found a good phrase structure grammar primer, namely "Beginning Syntax" by Thomas, which has been recommended by more than one person on this exchange. However, when I looked for any similarly ...
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1answer
779 views

What it the best algorithm for dependency parsing?

There are quite a few statistical parsers but I'm interested in rule-based dependency parsing. I have a lexicon, i.e., a list of words with lemmas, POS, and morphological features. What is the best ...
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858 views

Steps to build a dependency parser [closed]

I'm a beginner in NLP. What are the main steps to build a dependency parser? thanks.
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What is the root of an utterance without a verb?

Dependency grammars treat the main verb of a sentence as the root node of a dependency graph. Not all utterances, however, have verbs. (Example: the widely known exclamation "holy shit!") In these ...
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349 views

What is the linguistic significance of dep and gov methods in Stanford NLP's Typed Dependency class?

I am looking at a TypedDependency object like this: root(ROOT-0, fired-4), which is part of the StanfordNLP suite. If I call the object's .dep() method I get fired/VBD If I call the object's .gov() ...
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504 views

dependency or constituency treebank?

Most Treebank conversion which I found in the web are from constituency treebank to dependency treebank, I wonder why there is little works in the opposite direction? Does it mean that nowadays ...
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Is there a paradigmatic formalism for dependency grammars?

When looking on the web, wikipedia for example, at the concept of constituent, it is associated with the concept of phrase structure, and rather quickly with context-free languages (as the ...
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5answers
478 views

Introduction to linguistics from a practical application standpoint

I currently have a project that I need to do that involves quite a bit of computational linguistics. My background in linguistics is very high level - I wonder if there are any good introductory ...
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Why is constituency needed, since dependency gets the job done more easily and economically?

I do dependency grammar (DG), and my personal view is that dependency gets the job done more efficiently than constituency by far. The average constituency parse (= phrase structure parse) contains ...
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How does a dependency grammar generate strings?

Theoretically speaking, if I were to use a rule-based approach to generate grammatically correct strings for a language L, I would implement a phrase structure grammar G = (V, T, R, S) consisting of ...
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Dependency Grammar constraints

I study dependency grammar, DG and I have a question regarding constraints of DG. I do understand why do we need constituency grammars, CG and DG, however I don't completely understand the ...