| # Summary | |
| UD_Bulgarian-BTB is based on the HPSG-based BulTreeBank, | |
| created at the Institute of Information and Communication Technologies, | |
| Bulgarian Academy of Sciences. | |
| The original consists of 215,000 tokens (over 15,000 sentences). | |
| All the texts were processed automatically at tokenization, morphological | |
| and chunk level. Then, the full syntactic analysis were perfomed manually by | |
| trained annotators. | |
| # Introduction | |
| The UD_Bulgarian-BTB consists of 156 149 tokens (11,138 sentences). | |
| This subset of BulTreeBank excludes ellipses and some rare phenomena. | |
| The conversion was done semi-automatically by Kiril Simov, | |
| with the application of set of rules and constraints for result consistency. | |
| The rest of the sentences will be converted for the next releases. | |
| The original version is freely available for research upon request. | |
| # Acknowledgements | |
| The original treebank was developed in a project (2001-2004), funded by the | |
| Volkswagen Stiftung, Federal Republic of Germany under the Programme | |
| "Cooperation with Natural and Engineering Scientists in Central and Eastern | |
| Europe". The project was carried out mainly at IICT-BAS in tight cooperation | |
| with researchers at the Seminar für Sprachwissenschaft (SfS), | |
| Eberhard-Karls-Universität, Tübingen, Germany. Link: | |
| http://bultreebank.org/ | |
| The conversion of BulTreeBank into Universal Dependency format was supported | |
| by the EU Project QTLeap. Link: http://qtleap.eu/ | |
| We would like to thank all our colleagues that contributed to the annotation of the original treebank: | |
| Elisaveta Balabanova, Dimitar Dojkov, Maggie Ivanchukova, Sia Kolkovska, Milena Slavcheva, Petya Osenova. | |
| We also would like to thank our annotator and validator to the treebank UD version: Stanislava Kancheva. | |
| # References | |
| Petya Osenova and Kiril Simov. BTB-TR05: BulTreeBank Stylebook. BulTreeBank | |
| Project Technical Report № 05. 2004. Link: | |
| http://www.bultreebank.org/TechRep/BTB-TR05.pdf | |
| Kiril Simov and Petya Osenova. Practical Annotation Scheme for an HPSG | |
| Treebank of Bulgarian. In: Proc. of the 4th International Workshop on | |
| Linguistically Interpreteted Corpora (LINC-2003), Budapest, Hungary. 2003. | |
| Kiril Simov, Gergana Popova, Petya Osenova. HPSG-based syntactic treebank of | |
| Bulgarian (BulTreeBank). In: "A Rainbow of Corpora: Corpus Linguistics and | |
| the Languages of the World", edited by Andrew Wilson, Paul Rayson, and Tony | |
| McEnery; Lincom-Europa, Munich 2002, pp. 135-142. | |
| Kiril Simov, Petya Osenova and Milena Slavcheva. BTB-TR03: BulTreeBank | |
| Morphosyntactic Tagset. BulTreeBank Project Technical Report № 03. 2004 | |
| Kiril Simov, Petya Osenova, Alexander Simov, Milen Kouylekov. Design and | |
| Implementation of the Bulgarian HPSG-based Treebank. In Erhard Hinrichs and | |
| Kiril Simov, editors, Journal of Research on Language and Computation, | |
| Special Issue, Kluwer Academic Publishers, pp. 495-522. | |
| ## BibTeX | |
| @techreport{OsenovaSimov2004, | |
| author = {Petya Osenova and Kiril Simov}, | |
| title = {BTB-TR05: BulTreeBank Stylebook ą 05}, | |
| year = {2004}, | |
| url = {http://www.bultreebank.org/TechRep/BTB-TR05.pdf} | |
| } | |
| @InProceedings{SimovOsenova2003, | |
| author = {Kiril Simov and Petya Osenova}, | |
| title = {Practical Annotation Scheme for an HPSG Treebank of Bulgarian}, | |
| booktitle = {Proceedings of the 4th International Workshop on Linguistically Interpreteted Corpora (LINC-2003)}, | |
| year = {2003}, | |
| pages = {17--24}, | |
| } | |
| @incollection{SimovOsPo2002, | |
| author = {Kiril Simov and Gergana Popova and Petya Osenova}, | |
| title = {HPSG-based syntactic treebank of Bulgarian (BulTreeBank)}, | |
| booktitle = {A Rainbow of Corpora: Corpus Linguistics and the Languages of the World}, | |
| editor = {Andrew Wilson, Paul Rayson and Tony McEnery}, | |
| publisher = {Lincom-Europa}, | |
| pages = {135--142}, | |
| year = {2002}, | |
| } | |
| @techreport{SimovOseSlav2004, | |
| author = {Kiril Simov and Petya Osenova and Milena Slavcheva}, | |
| title = {BTB-TR03: BulTreeBank Morphosyntactic Tagset. BulTreeBank Project Technical Report ą 03}, | |
| year = {2004}, | |
| url = {http://www.bultreebank.org/TechRep/BTB-TR03.pdf} | |
| } | |
| @article{SimOsSimKo2005, | |
| author = {Kiril Simov and Petya Osenova and Alexander Simov and Milen Kouylekov}, | |
| title = {Design and Implementation of the Bulgarian HPSG-based Treebank}, | |
| journal = {Journal of Research on Language and Computation. Special Issue}, | |
| year = {2005}, | |
| pages = {495--522}, | |
| publisher = {Kluwer Academic Publisher}, | |
| } | |
| # Domains and data split | |
| The domains in the treebanks are as follows: Bulgarian newspapers (81 %), | |
| fiction (16 %) and administrative documents (3 %). | |
| The files of the original treebank were concatenated in one file. Then: | |
| - each tenth sentence was selected for the development set | |
| - each first sentence was selected for the test part | |
| - the rest sentences are in the training set | |
| Remark: Each tenth sentence means the following: when the ID of the sentence | |
| is divided by 10, the reminder is 0. | |
| Each first sentence means the following: when the ID of the sentence is | |
| divided by 10, the reminder is 1. | |
| Changelog | |
| --------- | |
| * 2020-01-16 **IWPT Shared Task Data** | |
| * Enhanced graph: Added empty nodes representing elided predicates. | |
| 2.2 -> 2.3 | |
| Automatic addition of enhanced dependencies. | |
| * 2018-04-15 v2.2 | |
| * Repository renamed from UD_Bulgarian to UD_Bulgarian-BTB. | |
| 1.4 -> 2.0 | |
| - manual improvements of the annotation (e.g. more features converted from the original treebank) | |
| - automatic conversion to UDv2 guidelines using Udapi (http://udapi.github.io/) ud.Convert1to2 | |
| - original texts added, extra PUNCT nodes after abbreviations deleted (ud.bg.RemoveDotAfterAbbr) | |
| - goeswith nodes added to match better the original texts (ud.GoeswithFromText keep_lemma=1) | |
| - sent_id now encodes both the original document and sentence number, # newdoc added | |
| - test set omitted from the UDv2.0 official release because of CoNLL 2017 shared task. | |
| 1.3 -> 1.4 | |
| - corrections with the use of copula relation: it was extended and applied to sentences that consist of the auxiliary verb ‘to be’, a noun and a subordinate sentence. In this case noun is the root, auxiliary verb is the dependent, attached with a cop relation, and the subordinate sentence is the subject. | |
| - extended use of the xcomp relation– after certain verbs and in the cases when there are: direct object and a subordinate sentence that is a complement, namely - xcomp; | |
| - extended use of the nsubjpass relation. | |
| 1.2 -> 1.3 | |
| - appositions (the wrongly annotated vocatives and appositions were corrected as nmod) | |
| - xcomp (the ccomp relations were checked for control structures and re-annotated as xcomp) | |
| - nsubjpass and csubjpass in se-passives were annotated | |
| - cop relation direction was corrected | |
| - the relation between nouns and short possessive pronouns was re-annotated from case to det | |
| - changed the feature VerbForm=Fin to VerbForm=Part for participles | |
| - We also have changed the feature VerbForm=Fin to VerbForm=Part for participles. | |
| 1.1 -> 1.2 | |
| - Addition of new data | |
| - Adding se-passives | |
| - Correcting dobj and iobj instead of expletive in the cases when there is no doubling. | |
| - Correcting the secondary predicates were re-considered from dobj to xcomp (Te ya naznachiha direktor.) | |
| - Adding auxpass relation | |
| <pre> | |
| === Machine-readable metadata (DO NOT REMOVE!) ================================ | |
| Data available since: UD v1.1 | |
| License: CC BY-NC-SA 3.0 | |
| Includes text: yes | |
| Genre: news legal fiction | |
| Lemmas: converted from manual | |
| UPOS: converted from manual | |
| XPOS: manual native | |
| Features: converted from manual | |
| Relations: converted from manual | |
| Contributors: Simov, Kiril; Osenova, Petya; Popel, Martin | |
| Contributing: elsewhere | |
| Contact: kivs@bultreebank.org, petya@bultreebank.org | |
| =============================================================================== | |
| </pre> | |