The Galician-TreeGal is a treebank for Galician developed at LyS Group (Universidade da Coruña).
The resource derives from a subset (called xeral) of the XIADA corpus (v2.6), created at the Centro Ramón Piñeiro para a Investigación en Humanidades (http://corpus.cirp.es/xiada/).
All the information except the syntactic one was semi-automatically converted to UD from the original resource. The dependency labels were assigned using cross-lingual parsing techniques, and then manually corrected by a linguist (see the references for more information). At the end of this process, several corrections were carried out in order to agree with the UD guidelines.
Galician-TreeGal v0.42 contains 1000 sentences of the xeral corpus (~25k tokens), and it is divided 60-40 splits (train-test).
Differences from the generic Galician guidelines
- The Galician-TreeGal treebank uses the following morphological features:
- Nouns have inherent or inflected Gender (common, feminine, or masculine) and Number (singular or plural).
- Verbs can have four different VerbForm features (finite, gerund, participle, or infinitive):
- Forms in participle inflect for Gender (feminine or masculine) and for Number (singular or plural).
- Both finite and infinitive verb form may inflect for Number (singular or plural) and for Person (1, 2, 3).
- Finite forms also inflect for Tense (present, future, past, imperfect, and pluperfect) and Mood (indicative, subjuntive, imperative, and conditional).
- Adjectives agree with nouns with respect to the features Gender and Number. In addition, some adjectives inflect for Degree (comparative, superlative).
- Negative adverbs have negative Polarity in Galician-TreeGal. Also, relative and interrogative adverbs are labeled with Rel and Int (PronType), respectively.
- Few adpositions (e.g., sen) and conjunctions (nin) are also labeled with negative polarity.
- PronType is used to differentiate the following pronouns and determiners: Demonstrative, indefinite, relative, interrogative, personal, and article. Personal (Prs) stands for personal and for possessive pronouns and determiners (Poss disambiguates between these two types). PRON Articles (Art) are those determiners acting as pronouns (heads) when a noun is elided (e.g., "a [elided noun] de Abel")).
- Determiners and pronouns inflect for Number (singular or plural) and for Gender (feminine, masculine, common, and neutral).
- Possessive determiners and pronouns (Poss) also have a language-specific feature which encodes the number of the possessor: Number[psor] (singular or plural).
- Clitic pronouns inflect for Case with three values (nominative, accusative, dative).
- Determiners agree with nouns in the same way as adjectives.
For more information, see Garcia, Marcos (2016), Universal Dependencies Guidelines for the Galician-TreeGal Treebank (note that this document follows old UD guidelines).
- Galician-TreeGal uses four dependency relation subtypes:
- aux:pass for passive auxiliaries.
- flat:name for exocentric complex names.
- flat:foreign for foreign complex names with different structures.
- nsubj:pass for nominal subjects of passive verbs.
Garcia, Marcos, 2016. Universal Dependencies Guidelines for the Galician-TreeGal Treebank. Technical Report. LyS Group, Universidade da Coruña.
Garcia, Marcos, Carlos Gómez-Rodríguez and Miguel A. Alonso, 2018. New treebank or repurposed? On the feasibility of cross-lingual parsing of Romance languages with Universal Dependencies. Natural Language Engineering, 24(1): 91-122.
Rojo, Guillermo, Marisol López Martínez, Eva Domínguez Noya and Fco. Mario Barcala, 2015. Corpus de adestramento do Etiquetador/Lematizador do Galego Actual (XIADA), v2.6. Centro Ramón Piñeiro para a Investigación en Humanidades.
- Tree count: 1000
- Word count: 25548
- Token count: 23478
- Dep. relations: 37 of which 4 language specific
- POS tags: 16
- Category=value feature pairs: 44
- There are a few tokens with blank spaces (telephone numbers: "xxx xxx xxx").
- The morphological features of some tokens (analyzed as part of proper nouns in the original corpus) are not available.
- The dependency labels need to be reviewed by another expert to calculate inter-annotator agreement.
- Correction of AUX verbs and some others POS-tags.
- Adaptation of copulative analysis to the latest UD guidelines.
- Minor review of other cases.
- Few features and POS corrections.
- 'orphan' dependency correction.
- POS-tags, morphological features and dependency relations adapted do UDv2.
- Multiword expressions expanded (previously as single tokens).
- Complex proper nouns expanded (previously as single tokens).
- General review.
- Added original text.
=== Machine-readable metadata (DO NOT REMOVE!) ================================ Documentation status: partial Data source: manual Data available since: UD v1.4 License: LGPL-LR Genre: news Includes text: yes Lemmas: manual native UPOS: manual native XPOS: manual native Features: converted with corrections Relations: manual native Contributors: Garcia, Marcos Contributing: elsewhere Contact: email@example.com ===============================================================================