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# Summary

The Slovenian UD Treebank is a rule-based conversion of the ssj500k treebank, the largest collection of manually syntactically annotated data in Slovenian, originally annotated in the JOS annotation scheme.

# Introduction

The Slovenian SSJ UD Treebank (Dobrovoljc et al. 2017) is based on the ssj500k treebank
(Krek et al. 2015), a balanced collection of sampled texts from the FidaPLUS reference
corpus of written Slovene (Arhar and Gorjanc 2007). The original ssj500k corpus has
been manually segmented, tokenized, lemmatized and morphosyntactically tagged within
JOS project, in which the annotation guidelines have also been developed (Erjavec et
al. 2010). Additionally, approximately one half of the ssj500k treebank has been
manually annotated for dependency relations, according to the JOS syntactic annotation
scheme. The syntactically annotated part of the ssj500k corpus (known as ssj200k),
consisting of 11,411 annotated sentences and 235,864 tokens, has been used as the
basis for conversion to the Slovenian UD Treebank.

The conversion from ssj200k to the Slovenian SSJ UD Treebank was completely automatic,
based on a large set of rules for both morphosyntactic and syntactic layer,
which include different lexical, morphological and dependency features. Due to the
specifics of the original JOS syntactic annotation scheme, not all dependency relations
from the original ssj200k treebank could be converted automatically, resulting in a
smaller UD treebank size. The current version of the Slovenian UD Treebank thus contains
8,000 sentences with 140,670 tokens taken from various text types, e.g. fiction,
non-fiction and periodicals, dating from 1990-2000. The original JOS annotations are
included as part of the POSTAG (JOS morphosyntactic tags) and MISC (JOS dependency
heads and labels) columns in the CONLLU format.

The corpus is linearly split into training (80%), development (10%) and test
(10%) data.

# Acknowledgments

We wish to thank all of the contributors to the original ssj500k
training corpus: Kristina Bizjak, Živa Blaževič, Klara Canzutti, Lea
Cibrič, Kaja Dobrovoljc, Tadeja Dušej, Tomaž Erjavec, Ivana Fekeža,
Nanika Holz, Urška Kamenšek, Simon Krek, Andreja Košir, Robert Kuret,
Nina Ledinek, Andrej Lovšin, Boštjan Marhold, Nina Mikulin, Barbara
Modrijan, Sara Može, Tanja Novak, Lea Peršič, Tanja Radovič, Simona
Šinkovec, Urška Vranjek, Jerneja Umer, Petra Žalodec.

# References:

Kaja Dobrovoljc, Tomaž Erjavec, Simon Krek. 2017. The Universal Dependencies
Treebank for Slovenian. In: Proceeding of the 6th Workshop on Balto-Slavic Natural
Language Processing (BSNLP 2017), Valencia, 2017.

Simon Krek, Tomaž Erjavec, Kaja Dobrovoljc, Sara Može, Nina Ledinek and Nanika Holz.
2015. Training corpus ssj500k 1.4.

Špela Arhar and Vojko Gorjanc. 2007. Korpus FidaPLUS: nova generacija
slovenskega referenčnega korpusa (The FidaPLUS corpus: a new
generation of the Slovene reference corpus). Jezik in slovstvo, 52(2).

Tomaž Erjavec, Darja Fišer, Simon Krek and Nina Ledinek. 2010. The JOS
Linguistically Tagged Corpus of Slovene. In: Proceedings of the
Seventh International Conference on Language Resources and Evaluation
(LREC'10), Malta, 2010.

# Changelog

2018-04-15 v2.2
-- Repository renamed from UD_Slovenian to UD_Slovenian-SSJ.
-- Changed two flat:name errors.

2017-01-31 v2.0
-- New rules for conversion from UDv1 to UDv2
-- Fixed a few errors in the original ssj500k treebank (ssj500k_v1.6)

2016-05-15 v1.3
-- Added PronType to possessive pronouns
-- Added PronType to some determiners
-- Fixed a few minor issues in the conversion script based on content validation
-- Fixed a few errors in the original ssj500k treebank
-- Fixed the SpaceAfter=No bug

=== Machine-readable metadata (DO NOT REMOVE!) ================================
Data available since: UD v1.2
License: CC BY-NC-SA 4.0
Includes text: yes
Genre: news nonfiction fiction
Lemmas: converted from manual
UPOS: converted from manual
XPOS: manual native
Features: converted from manual
Relations: converted from manual
Contributors: Dobrovoljc, Kaja; Erjavec, Tomaž; Krek, Simon
Contributing: elsewhere
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