| # Summary | |
| The Polish PDB-UD treebank is based on the Polish Dependency Bank 2.0 (PDB 2.0), created at the Institute of Computer Science, Polish Academy of Sciences in Warsaw. The PDB-UD treebank is an extended and corrected version of the Polish SZ-UD treebank (the release 1.2 to 2.3). | |
| # Introduction | |
| The PDB-UD treebank consists of 22,152 sentences (350K tokens). It contains all 8K sentences of the Polish UD-SZ treebank and further 14K unique sentences. The additional sentences enclose linguistic phenomena that did not occur or were not annotated (e.g. relative clauses, reported speech) in the UD-SZ trees. The PDB-UD treebank contains enhanced graphs, i.e. trees with the enhanced edges encoding the shared dependents and the shared governors of coordinated conjuncts (9141 PDB-UD trees contain enhanced edges). | |
| The morphological, syntactic and semantic annotation of the PDB-UD treebank is created through a conversion of PDB 2.0 data. The conversion procedure has been designed and implemented by Alina Wróblewska partly based on the conversion of the UD-SZ trees. | |
| # Data Split | |
| The PDB-UD treebank contains sentences from Polish National Corpus, CDSCorpus, parallel corpora (e.g. Europarl, OPUS, and Pelcra Prallel Corpus) and other sources (e.g. literature). The PDB-UD treebank is divided into three parts: | |
| * training: 17,722 trees (281,736 tokens), | |
| * test: 2215 trees (33,617 tokens), | |
| * development: 2215 trees (34,683). | |
| The procedure of assigning dependency trees to particular data sets is generally random while maintaining the proportion of data from individual sources. There is one constraint on the dividing procedure: if a sentence occurs in the test, dev or train subset of the Polish LFG-UD treebank, this sentence is assigned to the test, dev or train set of the Polish PDB-UD treebank, respectively. | |
| # License/Copyright | |
| Universal Polish Dependency Bank © 2019 by Alina Wróblewska, Institute of Computer Science, Polish Academy of Sciences. | |
| The Polish PDB-UD treebank is licensed under [CC BY-NC-SA 4.0](http://creativecommons.org/licenses/by-nc-sa/4.0/). | |
| ## History Note | |
| The earlier release of the Polish UD treebank, i.e. the UD-SZ treebank, was first converted to the Prague dependency style as a part of HamleDT; | |
| then it was automatically converted to Universal Dependencies (HamleDT 3.0, 2015). The first | |
| release of Universal Dependencies that includes this treebank is UD v1.2 in November 2015. It is | |
| essentially the HamleDT conversion but the data is not identical to HamleDT 3.0 because the | |
| conversion procedure has been further improved. | |
| ## References | |
| If you use the Polish PDB-UD treebank, you are encouraged to cite this paper: | |
| <pre> | |
| @inproceedings{pl, | |
| author = {Wr{\'o}blewska, Alina}, | |
| title = {Extended and Enhanced Polish Dependency Bank in Universal Dependencies Format}, | |
| booktitle = {Proceedings of the Second Workshop on Universal Dependencies (UDW 2018)}, | |
| editor = {de Marneffe, Marie-Catherine and Lynn, Teresa and Schuster, Sebastian}, | |
| pages = {173--182}, | |
| publisher = {Association for Computational Linguistics}, | |
| year = {2018} | |
| } | |
| </pre> | |
| * http://git.nlp.ipipan.waw.pl/alina/PDBUD | |
| * http://zil.ipipan.waw.pl/PDB | |
| * http://ufal.mff.cuni.cz/hamledt ... HamleDT | |
| * http://ufal.mff.cuni.cz/treex ... Treex is the software used for conversion | |
| * http://ufal.mff.cuni.cz/interset ... Interset was used to convert POS tags and features | |
| # Acknowledgments | |
| We would like to thank all of the contributors of the original Polish Dependency Bank 2.0. The development of the PDB-UD treebank was founded by the Polish Ministry of Science and Higher Education as part of the investment in the CLARIN-PL research infrastructure. | |
| # Changelog | |
| * 2020-01-11 **IWPT Shared Task Data** | |
| * Enhanced graph: Added case information to oblique relations. | |
| * Enhanced graph: Added external subjects of open clausal complements. | |
| * Enhanced graph: Transformed relations between relative clauses and modified nouns. | |
| * Enhanced graph: Added empty nodes representing elided predicates. | |
| * 2019-11-15 v2.5 | |
| * Duplicate sentences are removed. | |
| * The treebank is divided anew into train, test and dev subsets. | |
| * The bugs fixed in the original PDB trees resulted in modifications to the UD trees. | |
| * Fixed nominal dependents of nouns that were attached as obl:arg; correct: nmod:arg. | |
| * Emphasizing words are annotated as advmod:emph. | |
| * 2019-05-15 v2.4 | |
| * Repository renamed from UD_Polish-SZ to UD_Polish-PDB. | |
| * Completely new conversion of the data. | |
| * In addition to the texts from “Składnica zależnościowa” 0.5, new data from PDB was added. | |
| * License changed from GNU GPL 3.0 to CC BY-NC-SA 4.0. | |
| * 2018-04-15 v2.2 | |
| * Repository renamed from UD_Polish to UD_Polish-SZ. | |
| * 2017-11-15 v2.1 | |
| * Prepositional objects are now “obl:arg” instead of “obj”. | |
| * Instrumental phrases for demoted agents in passives are now “obl:agent”. | |
| * 2017-03-01 v2.0 | |
| * Converted to UD v2 guidelines. | |
| * Reconsidered PRON vs. DET. | |
| * Improved advmod vs. obl distinction. | |
| * Participles moved from verbs to adjectives. | |
| * 2016-05-15 v1.3 | |
| * Fixed adverbs that were attached as nmod; correct: advmod. | |
| * Conditional auxiliary "by" changed from PART to AUX (and features added). | |
| * Demonstrative, interrogative, indefinite, total and negative PRON/DET separated from NOUN/ADJ. | |
| * Proper nouns (PROPN) separated from NOUN. | |
| * Past tense / l-participles changed from VerbForm=Fin to VerbForm=Part. | |
| * Verbal nouns (VerbForm=Ger) retagged and relemmatized from VERB to NOUN. | |
| <pre> | |
| === Machine-readable metadata (DO NOT REMOVE!) ================================ | |
| Data available since: UD v1.2 | |
| License: CC BY-NC-SA 4.0 | |
| Includes text: yes | |
| Genre: fiction nonfiction news | |
| Lemmas: converted from manual | |
| UPOS: converted from manual | |
| XPOS: manual native | |
| Features: converted from manual | |
| Relations: converted from manual | |
| Contributors: Wróblewska, Alina; Zeman, Daniel; Mašek, Jan; Rosa, Rudolf | |
| Contributing: elsewhere | |
| Contact: zeman@ufal.mff.cuni.cz | |
| =============================================================================== | |
| </pre> | |