| Challenge: | UD-SURFR is a symbolic surface realizer for Universal Dependencies structures . it is based on a tree of constituents that is then converted into an English sentence . |
| Approach: | They propose a symbolic system that transforms a dependency tree into a tree of constituents that is transformed into an English sentence by an existing realizer. |
| Outcome: | The proposed system is quite fast and showed competitive results for English sentences using automatic and manual evaluation measures. |
Similar Papers
Universal Dependencies According to BERT: Both More Specific and More General (2020.findings-emnlp)
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| Challenge: | Existing studies show that individual BERT heads encode particular dependency relation types, but they do not match one-to-one. |
| Approach: | They propose a method for relation identification and syntactic tree construction that can be applied with minimal supervision and generalizes well across languages. |
| Outcome: | The proposed method produces significantly more consistent dependency trees than previous work and can be applied with only a minimal amount of supervision and generalizes well across languages. |
Development of a Multilingual CCG Treebank via Universal Dependencies Conversion (2022.lrec-1)
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| Challenge: | Combinatory Categorial Grammar (CCG) is a lexicalized grammar formalism that can capture both syntactic and semantic information. |
| Approach: | They propose an algorithm to convert UD treebanks to CCG treebank and propose future extensions. |
| Outcome: | The proposed algorithm performs lexical, sentential, and syntactic rule coverage analysis, as well as CCG parsing experiments. |
Coordinate Constructions in English Enhanced Universal Dependencies: Analysis and Computational Modeling (2021.eacl-main)
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| Challenge: | Enhanced Universal Dependencies (UD) parses are used to represent syntactic dependencies between words, prioritizing links between content words. |
| Approach: | They propose to use a heuristic rule-based converter to propagate conjuncts from conjunction heads to other conjunctions to determine which set of links to propagation from a semantic perspective. |
| Outcome: | The proposed method outperforms existing methods using basic-layer tree parsers and converters. |
Universal Dependencies Version 2 for Japanese (L18-1)
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Masayuki Asahara, Hiroshi Kanayama, Takaaki Tanaka, Yusuke Miyao, Sumire Uematsu, Shinsuke Mori, Yuji Matsumoto, Mai Omura, Yugo Murawaki
| Challenge: | UD Japanese resources are built on automatic conversion from several treebanks. |
| Approach: | They propose to port the word delimitation, POS, and syntactic relations of existing treebanks to UD Japanese . they discuss the issues of the UD scheme found through porting of the Japanese language . |
| Outcome: | The proposed UD Japanese resources are based on automatic conversion from treebanks. |
Universal Dependencies v2: An Evergrowing Multilingual Treebank Collection (2020.lrec-1)
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Joakim Nivre, Marie-Catherine de Marneffe, Filip Ginter, Jan Hajič, Christopher D. Manning, Sampo Pyysalo, Sebastian Schuster, Francis Tyers, Daniel Zeman
| Challenge: | Universal Dependencies is an open community effort to create cross-linguistically consistent treebank annotation for many languages. |
| Approach: | They describe version 2 of the universal guidelines and discuss major changes from UD v1 to UD 2 . they propose a morphological layer, a syntactic layer and a word segmentation layer . |
| Outcome: | The proposed treebanks are available for 90 languages and have been updated to meet the needs of multilingual parsers and researchers. |
CoNLL-UL: Universal Morphological Lattices for Universal Dependency Parsing (L18-1)
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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. |
Contribution of Linguistic Typology to Universal Dependency Parsing: An Empirical Investigation (2024.emnlp-main)
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| Challenge: | UD is a global initiative to create a standard annotation for the dependency syntax of human languages. |
| Approach: | They propose a typologically motivated transformation of UD that emphasizes information packaging over lexical semantics. |
| Outcome: | The proposed scheme differs from previous attempts to create a universal annotation for human languages. |
UCxn: Typologically-Informed Annotation of Constructions Atop Universal Dependencies (2024.lrec-main)
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Leonie Weissweiler, Nina Böbel, Kirian Guiller, Santiago Herrera, Wesley Samuel Scivetti, Arthur Lorenzi, Nurit Melnik, Archna Bhatia, Hinrich Schütze, Lori Levin, Amir Zeldes, Joakim Nivre, William Croft, Nathan Schneider
| Challenge: | Grammatical constructions that convey meaning through a particular combination of several morphosyntactic elements are not labeled holistically. |
| Approach: | They propose to augment UD annotations with a ‘UCxn’ annotation layer for such meaning-bearing grammatical constructions and to approach this in a typologically informed way so that morphosyntactic strategies can be compared across languages. |
| Outcome: | The proposed annotation layer could be used to annotate meaning-bearing constructions across languages and to compare them across languages. |
Building Universal Dependency Treebanks in Korean (L18-1)
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| Challenge: | Several treebanks were introduced for Korean, all of which comprised annotation of morphemes and phrase structure trees, each following its own set of guidelines. |
| Approach: | They propose to use Korean treebanks as dependency trees and to analyze their performance using morpheme-level annotations. |
| Outcome: | The Korean portion of the Google UD Treebank, the Penn Korean Treebank and the KAIST Treebank are re-tokenized and assessed for errors. |
Towards the Conversion of National Corpus of Polish to Universal Dependencies (2020.lrec-1)
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| Challenge: | a paper aims at enriching the manually annotated part of National Corpus of Polish with a syntactic layer. |
| Approach: | They enrich manually annotated part of Polish National Corpus with a syntactic layer and a UD dependency graph. |
| Outcome: | The proposed model outperforms a model trained on a smaller set of gold-standard trees in predicting part-of-speech tags, morphological features, lemmata and labelled dependency trees. |