Polish Dependency Bank 2.0 (PDB 2.0)
PDB 2.0 is an extended version of Składnica zależnościowa (the first Polish dependency treebank). It consists of 22,208 trees and 351,406 tokens (i.e. 15.8 tokens per sentence on average). There are four parts of PDB 2.0:
- NKJP1M-based trees (14K)
- Projection-based trees (4K)
- CDScorpus-based trees (2K)
- OTHER trees (2K)
The PDB sentences contain some problematic linguistic phenomena, e.g. ellipsis, comparative constructions, constructions with the bi-functional subordinating conjunction JAKO, directed speech, interpolations and comments, nominative noun phrases used in the vocative function and many others. There are 28 Polish dependency relation types: abbrev_punct, adjunct, adjunct_compar, adjunct_qt, adjunct_rc, aglt, app, aux, comp, comp_ag, comp_fin, comp_inf, cond, conjunct, imp, item, mwe, ne, neg, obj, obj_th, pd, pre_coord, punct, refl, root, subj, vocative. Descritptions of Polish dependency relation types are at http://zil.ipipan.waw.pl/PDB/DepRelTypes (outdated). Some dependents are annotated with semantic roles, e.g. Beneficiary/Recipient.
Download: The updated version of Składnica zależnościowa (the first version of PDB). If you wish to get the entire PDB corpus (22K sentences annotated with the dependency trees) please contact alina <at> ipipan.waw.pl (replace <at> with @).
PDB in Universal Dependencies format (PDB-UD)
PDB-UD is a conversion of PDB in the UD-like format. It is an extended and corrected version of the Polish UD treebank (the release 2.1). PDB-UD contains enhanced graphs, i.e. trees with enhanced edges encoding shared dependents of coordinated elements, e.g. Dziewczynka śpiewa i tańczy (The girl sings and dances), and shared governors of coordinated elements, e.g. Dziewczynka i chłopiec śpiewają (A girl and a boy sing). PDB-UD trees were used in two shared tasks: LAW-MWE-CxG-2018 and PolEval 2018.
Download: PDB-UD is publicly available on http://git.nlp.ipipan.waw.pl/alina/PDBUD
Some dependency parsing models estimated on PDB and PDB-UD are available at http://zil.ipipan.waw.pl/PDB/PDBparser
The creation of PDB was supported by grant no POIG.01.01.02-14-013/09 from Innovative Economy Operational Programme co-financed by the European Union (European Regional Development Fund) and by the grant from the Polish Ministry of Science and Higher Education as part of the investment in the CLARIN-PL research infrastructure (2016-2020).
The resources are distributed under the CC BY-NC-SA 4.0 licence.
Any questions, comments? Please send them to Alina Wróblewska <alina AT SPAMFREE ipipan DOT waw DOT pl>.