CzeDLex 0.6 and its Representation in the PML-TQ

Proceedings of the 12th Conference on Language Resources and Evaluation (LREC 2020), pages 1128–1134 Marseille, 11–16 May 2020 c⃝ European Language Resources Association (ELRA), licensed under CC-BY-NC 1128 CzeDLex 0.6 and its Representation in the PML-TQ Jiˇr´ı M´ırovsk´y, Lucie Pol´akov´a and Pavl´ına Synkov´a Charles University, Faculty of Mathematics and Physics Institute of Formal and Applied Linguistics Prague, Czech Republic {mirovsky, polakova, synkova}@ufal.mff.cuni.cz Abstract CzeDLex is an electronic lexicon of Czech discourse connectives with its data coming from a large treebank annotated with discourse relations. Its new version CzeDLex 0.6 (as compared with the previous version 0.5, which was published in 2017) is significantly larger with respect to manually processed entries. Also, its structure has been modified to allow for primary connectives to appear with multiple entries for a single discourse sense. The lexicon comes in several formats, being both human and machine readable, and is available for searching in PML Tree Query, a user-friendly and powerful search tool for all kinds of linguistically annotated treebanks. The main purpose of this paper/demo is to present the new version of the lexicon and to demonstrate possibilities of mining various types of information from the lexicon using PML Tree Query; we present several examples of search queries over the lexicon data along with their results. The new version of the lexicon, CzeDLex 0.6, is available on-line and was officially released in December 2019 under the Creative Commons License. Keywords: lexicon, discourse connectives, Czech, searching, PML-TQ 1. Introduction and Outline Despite a strong emphasis on the use of neural networks also in such areas as discourse parsing (Wang et al., 2015; Hooda and Kosseim, 2017; Knaebel et al., 2019), devel- opment of electronic lexicons of discourse connectives has been experiencing an unprecedented boom in the last years as well. Inspired by first large-scale electronic lexicons of discourse connectives, most importantly by an XML-based and machine readable DiMLex for German (Stede, 2002; Scheffler and Stede, 2016), and also by the more human- oriented DPDE, a dictionary of Spanish discourse markers (Briz et al., 2003), quite many more lexicons of discourse connectives for other languages have emerged recently: LexConn for French (Roze et al., 2012), LICO for Italian (Feltracco et al., 2016), CzeDLex for Czech (M´ırovsk´y et al., 2017a), DiMLex-Eng for English (Das et al., 2018), LDM-PT for Portuguese (Mendes et al., 2018), and oth- ers. Most of these resources have been gradually unified in Connective-Lex (Stede et al., 2019), a multi-language database of discourse connectives currently covering 9 lan- guages.1 CzeDLex is an annotated electronic lexicon that provides semantic and morpho-syntactic information about Czech discourse connectives. Its first version, CzeDLex 0.5 (M´ırovsk´y et al., 2017a), was released in 2017 and de- scribed in M´ırovsk´y et al. (2017b). In the present con- tribution, after a brief overview of the lexicon properties in Section 2, we introduce CzeDLex 0.6, an updated ver- sion of the lexicon that contains significantly larger amount of manually processed entries and also redefines the basic structure of the lexicon, to comply with …

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