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SYN version 14
| Name | SYN version 14 | |
|---|---|---|
| Position | Number of tokens | 6 616 455 821 |
| Number of tokens without punctuation | 5 488 909 099 | |
| Number of word forms | 11 855 023 | |
| Number of lemmas | 7 869 983 | |
| Structures | Number of documents | 158 764 |
| Number of texts | 19 682 164 | |
| Number of sentences | 422 269 782 | |
| Other information | Referential | YES |
| Representative | NO (predominantly journalism) | |
| Publication year | 2025 | |
Every SYN corpus contains all the synchronic written corpora of the SYN series published up until the time of the given version's publication. The SYN version 14 corpus therefore contains the SYN2000, SYN2005, SYN2006PUB, SYN2009PUB, SYN2010,SYN2013PUB, SYN2015, SYN2020 and SYN2025 corpora; additionally, it contains a journalistic component predominantly from 2010–2023 (already included into SYN version 4 – SYN version 13) corpora, and as yet unpublished journalistic texts from 2024 in yearly volume of more than 100 mil. words.
The SYN corpus is not representative; the dominant component is journalism, which is the result of the predominance of journalistic corpora SYN2006PUB, SYN2009PUB, SYN2013PUB and the journalistic component from 2010–2024.
The SYN version 14 corpus is referential, and will remain accessible to users even after newer versions have been published. It is however necessary to keep in mind that the linguistic information will become outdated, as a natural result of the referential nature of the corpus. Individual versions of the SYN corpus will continue to be published regularly every year with the addition of current journalistic data, and every new addition will be given the attribute value <doc syn> equal to the version of the SYN corpus in which the given text first appeared; for example a subcorpus corresponding to the above mentioned (as yet unpublished) journalistic component can be created from the SYN version 14 using the condition syn="v14".
Composition of SYN version 14
| Referential written language corpora (synchronic and general) ordered by date of creation | |||||
|---|---|---|---|---|---|
| corpus | size (words) | lemmatization | morphological tags | publication year | corpus description |
| SYN2025 | 100M | ✓ | ✓ | 2025 | representative corpus, mainly texts from the years 2020–2024 |
| SYN2020 | 100M | ✓ | ✓ | 2020 | representative corpus, mainly texts from the years 2015–2019 |
| SYN2015 | 100M | ✓ | ✓ | 2015 | representative corpus, mainly texts from the years 2010–2014 |
| SYN2013PUB | 935M | ✓ | ✓ | 2013 | corpus of journalistic texts from the years 2005–2009 |
| SYN2010 | 100M | ✓ | ✓ | 2010 | representative corpus, mainly texts from the years 2005–2009 |
| SYN2009PUB | 700M | ✓ | ✓ | 2010 | corpus of journalistic texts from the years 1995–2007 |
| SYN2006PUB | 300M | ✓ | ✓ | 2006 | corpus of journalistic texts from the years 1989–2004 |
| SYN2005 | 100M | ✓ | ✓ | 2005 | representative corpus, mainly texts from the years 2000–2004 |
| SYN2000 | 100M | ✓ | ✓ | 2000 | representative corpus, mainly texts from the years 1990–1999 |
Journalism in SYN version 14
The composition of the journalistic part of SYN version 14 covers the production of most of the national daily newspapers (Mladá fronta DNES, Lidové noviny, Právo, Hospodářské noviny, Blesk, Sport), regional daily newspapers (chiefly Deníky Bohemia and Moravia published by Vltava Labe Media) and non-specialized magazines (Reflex, Respekt, Týden) from 1998–2024; the total number of journalistic titles is almost 200. The following graphs show the composition of the SYN corpus based on the main text types over the years and offer a closer look at the composition of the journalistic section.
Structure and annotation of SYN version 14
Generally speaking, structure and annotation of SYN version 14 are based on that of the SYN2025 corpus. In particular, hierarchy of structural tags for SYN version 14 has been taken over from SYN2025, as well as the lemmatization and morphological tagging. In this respect, SYN version 14 is the same as its predecessor, SYN version 13.
However, the correspondence of structure and annotation between SYN version 14 and SYN2025 has the following exceptions:
- introducing the additional attribute
<doc syn>for the creation of subcorpora corresponding to the original reference corpora; - replacing syntactic annotation in the SYN2025 corpus with a (compared to SYN v13) brand new phraseme annotation.
How to cite SYN version 14
Křen, M. – Čapka, T. – Hnátková, M. – Jelínek, T. – Křivan, J. – Petkevič, V. – Skoumalová, H. – Vondřička, P.: Korpus SYN, verze 14 z 30. 12. 2025. Ústav Českého národního korpusu FF UK, Praha 2025. Dostupný z WWW: https://www.korpus.cz
Hnátková, M. – Křen, M. – Procházka, P. – Skoumalová, H. (2014): The SYN-series corpora of written Czech. In Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14), 160–164. Reykjavík: ELRA. ISBN 978-2-9517408-8-4.
Jelínek, T. – Křivan, J. – Petkevič, V. – Skoumalová, H. – Šindlerová, J. (2021): SYN2020: A new corpus of Czech with an innovated annotation. In: K. Ekštein – F. Pártl – M. Konopík (eds.), Text, Speech, and Dialogue. TSD 2021. Lecture Notes in Computer Science, vol. 12848. Cham: Springer, 48–59.
Křivan, J. – Šindlerová, J. (2022): Změny v morfologické anotaci korpusů řady SYN: nové možnosti zkoumání české gramatiky a lexikonu. Slovo a slovesnost, 83 (2), 122–145.
— Michal Křen
