Syntactic Nuclei in Dependency Parsing – A Multilingual Exploration (2021.eacl-main)
Copied to clipboard
| Challenge: | Existing models for syntactic dependency parsing assume words are elementary units that enter into dependency relations. |
| Approach: | They propose to use composition functions to make a transition-based dependency parser aware of the notion of nucleus. |
| Outcome: | The proposed concept of nucleus gives small but significant improvements in parsing accuracy on 12 languages. |
Similar Papers
A Survey of Unsupervised Dependency Parsing (2020.coling-main)
Copied to clipboard
| Challenge: | Syntactic dependency parsing is an important task in natural language processing . unsupervised learning of dependency parses requires training sentences to be manually annotated with their correct parse trees. |
| Approach: | They propose to survey existing approaches to unsupervised dependency parsing . they identify two major classes of approaches and discuss recent trends . |
| Outcome: | The proposed methods can be used in semantic parsing, machine translation, relation extraction, and many other tasks. |
Multilingual Dependency Parsing for Low-Resource Languages: Case Studies on North Saami and Komi-Zyrian (L18-1)
Copied to clipboard
| Challenge: | Developing systems for low-resource languages is a crucial issue for Natural Language Processing (NLP). |
| Approach: | They propose a method for parsing low-resource languages with very small training corpora using multilingual word embeddings and annotated corporata of larger languages. |
| Outcome: | The proposed method improves dependency parsing for low-resource languages with very small training corpora compared to previous work . it also explores whether contemporary contact languages or genetically related languages would be the most fruitful starting point for multilingual parsers. |
Typological Features for Multilingual Delexicalised Dependency Parsing (N19-1)
Copied to clipboard
| Challenge: | Existing universal models to describe the syntax of languages are debated for decades . a new study examines the plausibility of universal grammars in dependency parsing . |
| Approach: | They propose to use typological features to describe the syntax of languages to train a multilingual dependency parser. |
| Outcome: | The proposed model can be trained on 40 languages with the help of typological features. |
Viable Dependency Parsing as Sequence Labeling (N19-1)
Copied to clipboard
| Challenge: | Existing work on dependency parsing by sequence labeling suggested that it was impractical. |
| Approach: | They propose to use dependency trees as sequence labels to obtain fast and accurate parsers using a conventional BILSTM-based model. |
| Outcome: | The proposed models are conceptually simple, not needing traditional parsing algorithms or auxiliary structures, and provide a good speed-accuracy tradeoff, with results competitive with more complex approaches. |
Parsing as Tagging (2020.lrec-1)
Copied to clipboard
| Challenge: | Existing methods for dependency parsing treat parse as tagging, but they are not perfect. |
| Approach: | They propose a simple yet accurate method that treats parsing as tagging . they use a sequence model with a bidirectional LSTM over BERT embeddings . |
| Outcome: | The proposed method outperforms the state-of-the-art method on universal dependency (UD) by 1.76% unlabeled attachment score (UAS) for English, 1.98% UAS for French, and 1.16% UAS in German. |
Parsing All: Syntax and Semantics, Dependencies and Spans (2020.findings-emnlp)
Copied to clipboard
| Challenge: | Syntactic and semantic structures are key linguistic contextual clues, but few studies have explored how they can be used to improve syntactical parsing. |
| Approach: | They propose a syntactic and semantic parsing model which integrates syntaktic information in the encoder of neural network and benefits from two representation formalisms in a uniform way. |
| Outcome: | The proposed model achieves state-of-the-art or competitive results on both span and dependency representations and on Penn Treebank. |
Quantifying training challenges of dependency parsers (C18-1)
Copied to clipboard
| Challenge: | a new metric is introduced to evaluate the difficulty to learn a given class of dependencies . a series of systematic computations using that metric have revealed interesting properties of the 3 considered parsing algorithms . |
| Approach: | They introduce a new metric to evaluate the difficulty to learn a given class of dependencies . they use it to characterize the information conveyed by cross-lingual parsers . |
| Outcome: | The proposed metric reveals the kind of dependencies that require high effort during training . it also shows that cross-lingual parsers can provide better quality information . |
Hierarchical Bracketing Encodings Work for Dependency Graphs (2025.emnlp-main)
Copied to clipboard
| Challenge: | Sequence labeling (SL) is a simple yet effective paradigm for a wide range of natural language problems. |
| Approach: | They propose a new bracketing approach for dependency graph parsing that encodes graphs as sequences and n tagging actions. |
| Outcome: | The proposed approach significantly reduces label space while preserving structural information. |
A Framework for Understanding the Role of Morphology in Universal Dependency Parsing (D18-1)
Copied to clipboard
| Challenge: | a measure of morphological complexity is used to characterize syntactic information in word embeddings. |
| Approach: | They propose a measure of morphological complexity in terms of governor-dependent preferential attachment that explains parsing performance. |
| Outcome: | The proposed framework improves parsing performance on morphologically rich languages using morphology as a syntactic marker. |
CoNLL-UL: Universal Morphological Lattices for Universal Dependency Parsing (L18-1)
Copied to clipboard
Amir More, Özlem Çetinoğlu, Çağrı Çöltekin, Nizar Habash, Benoît Sagot, Djamé Seddah, Dima Taji, Reut Tsarfaty
| Challenge: | Using the universal dependencies framework, we address the need for a universal representation of morphological analysis that can capture alternative morphology of surface tokens and is compatible with the segmentation and morphologic annotation guidelines prescribed for UD treebanks. |
| Approach: | They propose a new annotation format for word lattices that represent morphological analyses and a resource that obeys this format for a range of typologically different languages. |
| Outcome: | The proposed model can capture alternative morphological analyses of surface tokens and is compatible with the segmentation and morphology guidelines prescribed for UD treebanks. |