A Robust Parser for Unrestricted Greek Text. - Sotiris Boutsis; Prokopis Prokopidis; Voula Giouli; Stelios Piperidis (LREC, 2000)

A Unified POS Tagging Architecture and its Application to Greek. - Harris Papageorgiou; Prokopis Prokopidis; Voula Giouli; Stelios Piperidis (LREC, 2000)

Multi-level XML-based Corpus Annotation. - Harris Papageorgiou; Prokopis Prokopidis; Voula Giouli; Iason Demiros; Alexis Konstantinidis; Stelios Piperidis (LREC, 2002)

Multimodal, Multilingual Resources in the Subtitling Process. - Stelios Piperidis; Iason Demiros; Prokopis Prokopidis; Peter Vanroose; Anja Höthker; Walter Daelemans; Elsa Sklavounou; Manos Konstantinou; Yannis Karavidas (LREC, 2004)

CIMWOS: A Multimedia Retrieval System based on Combined Text, Speech and Image Processing. - Harris Papageorgiou; Prokopis Prokopidis; Iason Demiros; Nikos Hatzigeorgiou; George Carayannis (RIAO, 2004)

Multimedia Indexing and Retrieval Using Natural Language, Speech and Image Processing Methods. - Harris Papageorgiou; Prokopis Prokopidis; Athanassios Protopapas; George Carayannis (Multimedia Content and the Semantic Web, 2005)

Adding multi-layer semantics to the Greek Dependency Treebank. - Harris Papageorgiou; Elina Desipri; Maria Koutsombogera; Kanella Pouli; Prokopis Prokopidis (LREC, 2006)

Overview of the Clef 2008 Multilingual Question Answering Track. - Pamela Forner; Anselmo Peñas; Eneko Agirre; Iñaki Alegria; Corina Forascu; Nicolas Moreau; Petya Osenova; Prokopis Prokopidis; Paulo Rocha 001; Bogdan Sacaleanu; Richard F. E. Sutcliffe; Erik F. Tjong Kim Sang (CLEF, 2008)

Overview of the CLEF 2008 Multilingual Question Answering Track. - Pamela Forner; Anselmo Peñas; Iñaki Alegría Loinaz; Corina Forascu; Nicolas Moreau; Petya Osenova; Prokopis Prokopidis; Paulo Rocha 001; Bogdan Sacaleanu; Richard F. E. Sutcliffe; Erik F. Tjong Kim Sang (CLEF (Working Notes), 2008)

Condensing Sentences for Subtitle Generation. - Prokopis Prokopidis; Vassia Karra; Aggeliki Papagianopoulou; Stelios Piperidis (LREC, 2008)

Towards Using Web-Crawled Data for Domain Adaptation in Statistical Machine Translation. - Pavel Pecina; Antonio Toral; Andy Way; Vassilis Papavassiliou; Prokopis Prokopidis; Maria Giagkou (EAMT, 2011)

Domain Adaptation of Statistical Machine Translation using Web-Crawled Resources: A Case Study. - Pavel Pecina; Antonio Toral; Vassilis Papavassiliou; Prokopis Prokopidis; Josef van Genabith (EAMT, 2012)

A modular open-source focused crawler for mining monolingual and bilingual corpora from the web. - Vassilis Papavassiliou; Prokopis Prokopidis; Gregor Thurmair (BUCC@ACL, 2013)

Mining and Exploiting Domain-Specific Corpora in the PANACEA Platform - Núria Bel; Vassilis Papavassiliou; Prokopis Prokopidis; Antonio Toral; Victoria Arranz (CoRR, 2013)

Comparing two acquisition systems for automatically building an English-Croatian parallel corpus from multilingual websites. - Miquel Esplà-Gomis; Filip Klubicka; Nikola Ljubesic; Sergio Ortiz-Rojas; Vassilis Papavassiliou; Prokopis Prokopidis (LREC, 2014)

Abu-MaTran: Automatic building of Machine Translation. - Antonio Toral; Flammie A. Pirinen; Andy Way; Gema Ramírez-Sánchez; Sergio Ortiz-Rojas; Raphael Rubino; Miquel Esplà-Gomis; Mikel L. Forcada; Vassilis Papavassiliou; Prokopis Prokopidis; Nikola Ljubesic (EAMT, 2015)

Abu-MaTran at WMT 2015 Translation Task: Morphological Segmentation and Web Crawling. - Raphaël Rubino; Flammie A. Pirinen; Miquel Esplà-Gomis; Nikola Ljubesic; Sergio Ortiz-Rojas; Vassilis Papavassiliou; Prokopis Prokopidis; Antonio Toral (WMT@EMNLP, 2015)

Domain adaptation of statistical machine translation with domain-focused web crawling. - Pavel Pecina; Antonio Toral; Vassilis Papavassiliou; Prokopis Prokopidis; Ales Tamchyna; Andy Way; Josef van Genabith (Lang. Resour. Evaluation, 2015)

Abu-MaTran: automatic building of machine translation. - Antonio Toral; Sergio Ortiz-Rojas; Mikel L. Forcada; Nikola Ljubesic; Prokopis Prokopidis (EAMT (Projects/Products), 2016)

Parallel Global Voices: a Collection of Multilingual Corpora with Citizen Media Stories. - Prokopis Prokopidis; Vassilis Papavassiliou; Stelios Piperidis (LREC, 2016)

The ILSP/ARC submission to the WMT 2016 Bilingual Document Alignment Shared Task. - Vassilis Papavassiliou; Prokopis Prokopidis; Stelios Piperidis (WMT, 2016)

Universal Dependencies for Greek. - Prokopis Prokopidis; Haris Papageorgiou (UDW@NoDaLiDa, 2017)

Topic Modelling Experiments on Hellenistic Corpora. - Ryder Wishart; Prokopis Prokopidis (CDH@TLT, 2017)

Crawl and crowd to bring machine translation to under-resourced languages. - Antonio Toral; Miquel Esplà-Gomis; Filip Klubicka; Nikola Ljubesic; Vassilis Papavassiliou; Prokopis Prokopidis; Raphael Rubino; Andy Way (Lang. Resour. Evaluation, 2017)

Discovering Parallel Language Resources for Training MT Engines. - Vassilis Papavassiliou; Prokopis Prokopidis; Stelios Piperidis (LREC, 2018)

The ILSP/ARC submission to the WMT 2018 Parallel Corpus Filtering Shared Task. - Vassilis Papavassiliou; Sokratis Sofianopoulos; Prokopis Prokopidis; Stelios Piperidis (WMT (shared task), 2018)

A Neural NLP toolkit for Greek. - Prokopis Prokopidis; Stelios Piperidis (SETN, 2020)

Collection and Curation of Language Data within the European Language Resource Coordination (ELRC). - Andrea Lösch; Valérie Mapelli; Khalid Choukri; Maria Giagkou; Stelios Piperidis; Prokopis Prokopidis; Vassilis Papavassiliou; Miltos Deligiannis; Aivars Berzins; Andrejs Vasiljevs; Eileen Schnur; Thierry Declerck; et al. (Qurator, 2021)

SciPar: A Collection of Parallel Corpora from Scientific Abstracts. - Dimitrios Roussis; Vassilis Papavassiliou; Prokopis Prokopidis; Stelios Piperidis; Vassilis Katsouros (LREC, 2022)

Constructing Parallel Corpora from COVID-19 News using MediSys Metadata. - Dimitrios Roussis; Vassilis Papavassiliou; Sokratis Sofianopoulos; Prokopis Prokopidis; Stelios Piperidis (LREC, 2022)

Findings of the Covid-19 MLIA Machine Translation Task. - Francisco Casacuberta; Alexandru Ceausu; Khalid Choukri; Miltos Deligiannis; Miguel Domingo; Mercedes García-Martínez; Manuel Herranz; Guillaume Jacquet; Vassilis Papavassiliou; Stelios Piperidis; Prokopis Prokopidis; Dimitrios Roussis; et al. (CoRR, 2022)

Findings of a Machine Translation Shared Task Focused on Covid-19 Related Documents. - Francisco Casacuberta; Alexandru Ceausu; Khalid Choukri; Miltos Deligiannis; Miguel Domingo; Mercedes García-Martínez; Manuel Herranz; Guillaume Jacquet; Vassilis Papavassiliou; Stelios Piperidis; Prokopis Prokopidis; Dimitris Roussis; et al. (SEPLN Posters, 2024)

Meltemi: The first open Large Language Model for Greek. - Leon Voukoutis; Dimitris Roussis; Georgios Paraskevopoulos; Sokratis Sofianopoulos; Prokopis Prokopidis; Vassilis Papavasileiou; Athanasios Katsamanis; Stelios Piperidis; Vassilis Katsouros (CoRR, 2024)

Krikri: Advancing Open Large Language Models for Greek. - Dimitris Roussis; Leon Voukoutis; Georgios Paraskevopoulos; Sokratis Sofianopoulos; Prokopis Prokopidis; Vassilis Papavasileiou; Athanasios Katsamanis; Stelios Piperidis; Vassilis Katsouros (CoRR, 2025)