Yannis Kazos


2025

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VMWE identification with models trained on GUD (a UDv.2 treebank of Standard Modern Greek)
Stella Markantonatou | Vivian Stamou | Stavros Bompolas | Katerina Anastasopoulou | Irianna Linardaki Vasileiadi | Konstantinos Diamantopoulos | Yannis Kazos | Antonios Anastasopoulos
Proceedings of the 21st Workshop on Multiword Expressions (MWE 2025)

UD_Greek-GUD (GUD) is the most recent Universal Dependencies (UD) treebank for Standard Modern Greek (SMG) and the first SMG UD treebank to annotate Verbal Multiword Expressions (VMWEs). GUD contains material from fiction texts and various sites that use colloquial SMG. We describe the special annotation decisions we implemented with GUD, the pipeline we developed to facilitate the active annotation of new material, and we report on the method we designed to evaluate the performance of models trained on GUD as regards VMWE identification tasks.

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Dialectal treebanks and their relation with the standard variety: The case of East Cretan and Standard Modern Greek
Socrates Vakirtzian | Vivian Stamou | Yannis Kazos | Stella Markantonatou
Proceedings of the Joint 25th Nordic Conference on Computational Linguistics and 11th Baltic Conference on Human Language Technologies (NoDaLiDa/Baltic-HLT 2025)

We report on the development of the first treebank and parser for Eastern Cretan in the framework of Universal Dependencies (UD). Eastern Cretan is a living but under-resourced dialect of Modern Greek. We have worked on the transcription of oral material and relied on active annotation and knowledge transfer from GUD, a treebank of Standard Modern Greek. Along with its other phonological and morphosyntactic differences from Standard Modern Greek, Eastern Cretan (and other varieties of Modern Greek) makes heavy use of euphonics and voicing that have not been included in the UD annotation guidelines so far. We have provided annotation guidelines for East Cretan euphonics and voicing and included them in the models. Knowledge transfer from the treebank of Standard Modern Greek to the dialectal models helped to initiate annotation via an active annotation procedure