| # Summary | |
| The UD_Czech-CAC treebank is based on the Czech Academic Corpus 2.0 (CAC; | |
| Český akademický korpus; ČAK), created at Charles University in Prague. | |
| # Introduction | |
| CAC consists both of written data and transcripts of spoken language. Only | |
| the written part is included in this treebank as no syntactic annotation is | |
| available for the spoken data. Out of 650,000 total CAC tokens, 493,306 appear | |
| in the treebank. | |
| The first version of CAC was created by a team from the Institute of the Czech | |
| Language, Czechoslovak Academy of Sciences, led by Marie Těšitelová, in | |
| 1971-1985; its original name was “Korpus věcného stylu”. It was reshaped and | |
| made compatible with the Prague Dependency Treebank between 2007 (CAC 1.0) and | |
| 2008 (CAC 2.0); these corpora are distributed by the Linguistic Data | |
| Consortium. The corpus has now been converted to Universal Dependencies and | |
| made freely available under the CreativeCommons license (see LICENSE.txt). | |
| See the following websites for more information on CAC 2.0: | |
| * http://ufal.mff.cuni.cz/rest/cac.html | |
| * http://ufal.mff.cuni.cz/rest/CAC/doc-cac20/cac-guide/eng/html/index.html | |
| * http://hdl.handle.net/11372/LRT-1061 | |
| * https://catalog.ldc.upenn.edu/LDC2008T22 | |
| * https://lindat.mff.cuni.cz//services/pmltq/#!/treebank/cac20/help | |
| (online query) | |
| CAC contains mostly unabridged articles taken from a wide range of media. | |
| These articles include newspapers, magazines and other sources covering | |
| administration, journalism and scientific fields. These three genres can be | |
| distinguished by the sentence id: in | |
| # sent_id = a-s20w-s55 | |
| the "s20w" part identifies the source document, where "w" means "written", | |
| "20" is the document id number and "s" means scientific (while "a20w" is the | |
| twentieth document from the administrative genre, and "n20w" from newspapers). | |
| The texts are taken from the 1970s and 1980s and thus, the selection of texts | |
| is influenced by the political and cultural climate of this time period. | |
| The original data in “Korpus věcného stylu” omits all punctuation symbols, | |
| numbers (only those expressed in digits; numeral words are preserved) and some | |
| measure units and symbols. The missing tokens were manually restored in CAC; | |
| however, for numbers and units, only a wildcard was inserted as the exact value | |
| and form cannot be guessed without access to the primary document. | |
| # Acknowledgments | |
| We wish to thank all of the contributors to the original annotation effort, | |
| as well as the team responsible for the corpus' revival in 2008. | |
| ## References | |
| * Barbora Vidová Hladká, Jan Hajič, Jiří Hana, Jaroslava Hlaváčová, | |
| Jiří Mírovský, Jan Votrubec: Průvodce Českým akademickým korpusem 1.0/ | |
| The Czech Academic Corpus 1.0 Guide. Karolinum, Praha, 2007. ISBN 978-80-246-1315-4. | |
| * Barbora Vidová Hladká, Jan Hajič, Jiří Hana, Jaroslava Hlaváčová, | |
| Jiří Mírovský, Jan Raab: The Czech Academic Corpus 2.0 Guide. | |
| In: The Prague Bulletin of Mathematical Linguistics, No. 89, | |
| Copyright © Univerzita Karlova, ISSN 0032-6585, pp. 41-96, Jun 2008. | |
| https://ufal.mff.cuni.cz/pbml/89/pbml89.pdf | |
| * Marie Těšitelová: K jazyku věcného stylu z hlediska kvantitativního | |
| (On the language of non-fiction style from the quantitative point of view). | |
| In: Slovo a slovesnost, vol. 44, no. 4, pp. 275-283, Praha, 1983. | |
| http://sas.ujc.cas.cz/archiv.php?art=2911 | |
| # Changelog | |
| * 2020-05-15 v2.6 | |
| * Genitive, dative and instrumental nominals are now considered oblique. | |
| * Added enhanced relations with case information. | |
| * Added enhanced relations around relative clauses. | |
| * Added enhanced external subjects in control verb constructions. | |
| * Added empty nodes to enhanced graphs (but orphans are just converted to dep). | |
| * 2019-05-15 v2.4 | |
| * Modified conversion: nouns do not have objects. | |
| * Fixed punctuation attachment. | |
| * Fixed some annotation errors. | |
| * 2018-11-15 v2.3 | |
| * Split multi-word tokens "cos, ses, sis, tys, vždyťs", participle + "-s". | |
| * Bug fix: conditional "by" should be attached as 'aux', not 'aux:pass'. | |
| * Flat name structures extended to titles and occupations. | |
| * Added LDeriv for passive participles (the infinitive of the source verb). | |
| * 2018-03-01 v2.2 | |
| * Added enhanced representation of dependencies propagated across coordination. | |
| The distinction of shared and private dependents is derived deterministically from the original Prague annotation. | |
| * Fixed computation of the LDeriv MISC attribute. | |
| * 2017-11-15 v2.1 | |
| * Retagged pronouns “každý” and “kterýžto”. | |
| * 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 | |
| * 2017-03-01 v2.0 | |
| * Converted to UD v2 guidelines. | |
| * Reconsidered PRON vs. DET. Extended PronType and Poss. | |
| * Improved advmod vs. obl distinction. | |
| * L-participles are verbs, other participles are adjectives. | |
| * 2016-05-01 v1.3 | |
| * Initial release. | |
| === Machine-readable metadata (DO NOT REMOVE!) ================================ | |
| Data available since: UD v1.3 | |
| License: CC BY-SA 4.0 | |
| Includes text: yes | |
| Genre: news nonfiction legal reviews medical | |
| Lemmas: converted from manual | |
| UPOS: converted from manual | |
| XPOS: manual native | |
| Features: converted from manual | |
| Relations: converted from manual | |
| Contributors: Hladká, Barbora; Zeman, Daniel | |
| Contributing: elsewhere | |
| Contact: [email protected] | |
| =============================================================================== | |
| Original CAC authors: Hladká, Barbora; Hajič, Jan; Hana, Jiří; Hlaváčová, Jaroslava; Mírovský, Jiří; Raab, Jan | |
| Original KVS authors: Těšitelová, Marie | |