~~NOTOC~~
====== The NKJP_1M corpus ======
The NKJP_1M corpus is a manually annotated one million word subcorpus of the [[http://nkjp.pl| National Corpus of Polish]] (NKJP – //Narodowy Korpus Języka Polskiego//), composed of various text samples (see below). It is a corpus of contemporary Polish with texts published after the year 1945; it contains written, spoken and web communication. The corpus features lemmatisation, morphological annotation, and representative coverage of text categories.
^ Name ^^ NKJP_1M ^
^ Positions ^ Number of positions (tokens) | 1,215,513 |
^ ::: ^ Number of positions (excl. punctuation) | 992,014 |
^ ::: ^ Number of word forms | 143,477 |
^ ::: ^ Number of lemmas | 54,174 |
^ Structures ^ Number of documents | 3,889 |
^ ::: ^ Number of paragraphs
| 18,484 |
^ ::: ^ Number of sentences | 85,663 |
^ Further information ^ Reference corpus | YES |
^ ::: ^ Representative corpus | YES |
^ ::: ^ Publication year | 2018 |
===== Text classification =====
The classification of NKJP_1M texts combines traditional criteria with a categorisation based on topic and genre. Genre categories (or //types//, in Polish corpus terminology) are often integrated with medium categories (or //communication channels//, in Polish corpus terminology), but formally, these two types of categorisation remain separate.
^Communication layer^ doc.genre ^ Category ^ Proportion ^
| written | #typ_publ | journalism | 48.85%|
| ::: | #typ_lit | fiction | 17.04%|
| ::: | #typ_fakt | non-fiction | 5.34%|
| ::: | #typ_inf-por | informative texts | 5.62%|
| ::: | #typ_urzed | legal texts | 2.97%|
| ::: | #typ_nd | popular science texts | 1.91%|
| ::: | #typ_nklas | non-fiction unclassified book | 1.00%|
| ::: | #typ_listy | correspondence| 0.04%|
| ::: | #typ_lit_poezja | poetry | 0.01%|
| spoken | #typ_qmow | quasi-spoken texts | 2.50%|
| ::: | #typ_media | spoken media text | 2.07%|
| ::: | #typ_konwers | spoken conversational texts | 5.57%|
| web | #typ_net_interakt | interaction-based Internet texts | 5.18%|
| ::: | #typ_net_nieinterakt | non-interaction-based Internet texts | 1.91%|
===== Positional annotation and tagging =====
Compared to typical corpora of Czech, NKJP_1M additionally has a positional attribute which is specific for Polish, the so-called **flexeme**. It is a category which further subdivides parts of speech into more specific lexeme classes. For instance, within nouns (//subst//), depreciative nouns (//depr//) form one of the flexeme subgroups; flexemes also distinguish between regular adjectives (//adj//), the first part of compound adjectives (//adja//, e.g. //__biało__-czerwony//, //__sportowo__-rekreacyjny//), post-prepositional adjectives (//adjp//, e.g. //po __polsku__//, //od __dawna__//), and predicative adjectives (//adjc//, e.g. //jestem __pewien__//, //był __wesół__ i __zdrów__//); and there is a particularly fine-grained subcategorization of verbs (more than 10 different flexemes).
Moreover, the Polish tagset differs from the Czech one; its detailed description (including the full flexeme list) is available [[http://nkjp.pl/poliqarp/help/ense2.html|here]].
In addtion, two positional attributes were added to the original corpus: ''lc'' and ''lemma_lc'', which allow to search the corpus in a case-insensitive manner.
====== How to cite NKJP_1M ======
Przepiórkowski,. A. – Degórski, Ł. – Murzynowski, G. – Szałkiewicz, Ł. – Czelakowska, A.– Savary, A. – Głowińska, K.: //NKJP_1M: ręcznie znakowany milionowy podkorpus NKJP//. Institute of the Czech National Corpus, Faculty of Arts, Charles University, Prague 2018. Available at WWW: http://www.korpus.cz
Degórski, Ł. – Przepiórkowski, A. (2012): Ręcznie znakowany milionowy podkorpus NKJP. In: A. Przepiórkowski – M. Bańko – R. L. Górski – B. Lewandowska-Tomaszczyk (eds), //[[http://nkjp.pl/settings/papers/NKJP_ksiazka.pdf|Narodowy Korpus Języka Polskiego]]//, pp. 51–58. Warszawa: Wydawnictwo Naukowe PWN. ISBN 978-83-01-16700-4.
//-- Adrian Zasina, Michal Škrabal//