Stella Markantonatou

Also published as: S. Markantonatou


2020

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Proceedings of the Joint Workshop on Multiword Expressions and Electronic Lexicons
Stella Markantonatou | John McCrae | Jelena Mitrović | Carole Tiberius | Carlos Ramisch | Ashwini Vaidya | Petya Osenova | Agata Savary
Proceedings of the Joint Workshop on Multiword Expressions and Electronic Lexicons

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VMWE discovery: a comparative analysis between Literature and Twitter Corpora
Vivian Stamou | Artemis Xylogianni | Marilena Malli | Penny Takorou | Stella Markantonatou
Proceedings of the Joint Workshop on Multiword Expressions and Electronic Lexicons

We evaluate manually five lexical association measurements as regards the discovery of Modern Greek verb multiword expressions with two or more lexicalised components usingmwetoolkit3 (Ramisch et al., 2010). We use Twitter corpora and compare our findings with previous work on fiction corpora. The results of LL, MLE and T-score were found to overlap significantly in both the fiction and the Twitter corpora, while the results of PMI and Dice do not.We find that MWEs with two lexicalised components are more frequent in Twitter than in fiction corpora and that lean syntactic patterns help retrieve them more efficiently than richer ones.Our work (i) supports the enrichment of the lexicographical database for Modern Greek MWEs’ IDION’ (Markantonatou et al., 2019) and (ii) highlights aspects of the usage of five association measurements on specific text genres for best MWE discovery results.

2019

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IDION: A database for Modern Greek multiword expressions
Stella Markantonatou | Panagiotis Minos | George Zakis | Vassiliki Moutzouri | Maria Chantou
Proceedings of the Joint Workshop on Multiword Expressions and WordNet (MWE-WN 2019)

We report on the ongoing development of IDION, a web resource of richly documented multiword expressions (MWEs) of Modern Greek addressed to the human user and to NLP. IDION contains about 2000 verb MWEs (VMWEs) of which about 850 are fully documented as regards their syntactic flexibility, their semantics and the semantic relations with other VMWEs. Sets of synonymous MWEs are defined in a bottom-up manner revealing the conceptual organization of the MG VMWE domain.

2018

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Fixed Similes: Measuring aspects of the relation between MWE idiomatic semantics and syntactic flexibility
Stella Markantonatou | Panagiotis Kouris | Yanis Maistros
Proceedings of the Joint Workshop on Linguistic Annotation, Multiword Expressions and Constructions (LAW-MWE-CxG-2018)

We shed light on aspects of the relation between the semantics and the syntactic flexibility of multiword expressions by investigating fixed adjective similes (FS), a predicative multiword expression class not studied in this respect before. We find that only a subset of the syntactic structures observed in the data are related with idiomaticity. We identify and measure two aspects of idiomaticity, one of which seems to allow for predictions about FS syntactic flexibility. Our research draws on a resource developed with the semantic and detailed syntactic annotation of web-retrieved Modern Greek material, indicating frequency of use of the individual similes.

2017

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Proceedings of the 13th Workshop on Multiword Expressions (MWE 2017)
Stella Markantonatou | Carlos Ramisch | Agata Savary | Veronika Vincze
Proceedings of the 13th Workshop on Multiword Expressions (MWE 2017)

2016

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Proceedings of the 12th Workshop on Multiword Expressions
Valia Kordoni | Kostadin Cholakov | Markus Egg | Stella Markantonatou | Preslav Nakov
Proceedings of the 12th Workshop on Multiword Expressions

2014

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Parsing Modern Greek verb MWEs with LFG/XLE grammars
Niki Samaridi | Stella Markantonatou
Proceedings of the 10th Workshop on Multiword Expressions (MWE)

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Encoding MWEs in a conceptual lexicon
Aggeliki Fotopoulou | Stella Markantonatou | Voula Giouli
Proceedings of the 10th Workshop on Multiword Expressions (MWE)

2010

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In Search of the ’Right’ Word
Stella Markantonatou | Aggeliki Fotopoulou | Maria Alexopoulou | Marianna Mini
Proceedings of the 2nd Workshop on Cognitive Aspects of the Lexicon

2008

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Evaluation of a Machine Translation System for Low Resource Languages: METIS-II
Vincent Vandeghinste | Peter Dirix | Ineke Schuurman | Stella Markantonatou | Sokratis Sofianopoulos | Marina Vassiliou | Olga Yannoutsou | Toni Badia | Maite Melero | Gemma Boleda | Michael Carl | Paul Schmidt
Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC'08)

In this paper we describe the METIS-II system and its evaluation on each of the language pairs: Dutch, German, Greek, and Spanish to English. The METIS-II system envisaged developing a data-driven approach in which no parallel corpus is required, and in which no full parser or extensive rule sets are needed. We describe evalution on a development test set and on a test set coming from Europarl, and compare our results with SYSTRAN. We also provide some further analysis, researching the impact of the number and source of the reference translations and analysing the results according to test text type. The results are expectably lower for the METIS system, but not at an unatainable distance from a mature system like SYSTRAN.

2007

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Demonstration of the Greek to English METIS-II system
Sokratis Sofianopoulos | Vassiliki Spilioti | Marina Vassiliou | Olga Yannoutsou | Stella Markantonatou
Proceedings of the 11th Conference on Theoretical and Methodological Issues in Machine Translation of Natural Languages: Papers

2006

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METIS-II: Machine Translation for Low Resource Languages
Vincent Vandeghinste | Ineke Schuurman | Michael Carl | Stella Markantonatou | Toni Badia
Proceedings of the Fifth International Conference on Language Resources and Evaluation (LREC’06)

In this paper we describe a machine translation prototype in which we use only minimal resources for both the source and the target language. A shallow source language analysis, combined with a translation dictionary and a mapping system of source language phenomena into the target language and a target language corpus for generation are all the resources needed in the described system. Several approaches are presented.

2005

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Monolingual Corpus-based MT Using Chunks
Stella Markantonatou | Sokratis Sofianopoulos | Vassiliki Spilioti | Yiorgos Tambouratzis | Marina Vassiliou | Olga Yannoutsou | Nikos Ioannou
Workshop on example-based machine translation

In the present article, a hybrid approach is proposed for implementing a machine translation system using a large monolingual corpus coupled with a bilingual lexicon and basic NLP tools. In the first phase of the METIS system, a source language (SL) sentence, after being tagged, lemmatised and translated by a flat lemma-to-lemma lexicon, was matched against a tagged and lemmatised target language (TL) corpus using a pattern matching algorithm. In the second phase, translations are generated by combining sub-sentential structures. In this paper, the main features of the second phase are discussed while the system architecture and the corresponding translation approach are presented. The proposed methodology is illustrated with examples of the translation process.

2003

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Using monolingual corpora for statistical machine translation: the METIS system
Yannis Dologlou | Stella Markantonatou | George Tambouratzis | Olga Yannoutsou | Athanassia Fourla | Nikos Iannou
EAMT Workshop: Improving MT through other language technology tools: resources and tools for building MT

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Evaluating specifications for controlled Greek
Marina Vassiliou | Stella Markantonatou | Yanis Maistros | Vangelis Karkaletsis
EAMT Workshop: Improving MT through other language technology tools: resources and tools for building MT

2000

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Discriminating the registers and styles in the Modern Greek language
George Tambouratzis | Stella Markantonatou | Nikolaos Hairetakis | Marina Vassiliou | Dimitrios Tambouratzis | George Carayannis
The Workshop on Comparing Corpora

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Proceedings of the Second International Conference on Language Resources and Evaluation (LREC’00)
M. Gavrilidou | G. Carayannis | S. Markantonatou | S. Piperidis | G. Stainhauer
Proceedings of the Second International Conference on Language Resources and Evaluation (LREC’00)

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Automatic Style Categorisation of Corpora in the Greek Language
George Tambouratzis | Stella Markantonatou | Nikolaos Hairetakis | George Carayannis
Proceedings of the Second International Conference on Language Resources and Evaluation (LREC’00)

1996

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Lexical Rules: What are they?
Andrew Bredenkamp | Stella Markantonatou | Louisa Sadler
COLING 1996 Volume 1: The 16th International Conference on Computational Linguistics

1993

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Experiments in Reusability of Grammatical Resources
Doug Arnold | Toni Badia | Josef van Genabith | Stella Markantonatou | Stefan Momma | Louisa Sadler | Paul Schmidt
Sixth Conference of the European Chapter of the Association for Computational Linguistics