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Alessandro Raganato

I am a postdoctoral researcher within the language technology research group at the University of Helsinki. I am part of the FoTran team led by prof. Jörg Tiedemann. FoTran is a project at the intersection of cross lingual Natural Language Processing and machine translation, funded by an ERC Consolidator Grant. I also joined a private AI research lab and consultancy company, Basement AI, as Head of Technology.

I did my PhD at the Linguistic Computing Laboratory (LCL) of the Sapienza University of Rome, under the supervision of prof. Roberto Navigli.
My research interests are, among others, semantic representation, Word Sense Disambiguation and Neural Machine Translation.

Contacts

E-mail is the best way to get in touch with me. You can reach me at: alessandro DOT raganato AT helsinki DOT fi

Babelfy: a Unified Approach to Word Sense Disambiguation and Entity Linking.

BabelNet: a multilingual encyclopedic dictionary and semantic network which connects concepts and named entities in a very large network of semantic relations.

BabelMorph: a multilingual morphological library for retrieving word inflections for nouns, verbs and adjectives based on Wiktionary.

supWSD: a supervised Word Sense Disambiguation system.

Multi encoder-decoder OpenNMT-py: a multilingual implementation of a inner-attention encoder-decoder NMT model trainable with a language rotating schedule.

MuCoW: a multilingual contrastive word sense disambiguation test suite for machine translation.

Sense Annotated Corpora:

EuroSense: almost 123 million sense annotations for over 155 thousand distinct concepts and entities in 21 languages. website

Five standard all-words Word Sense Disambiguation datasets, and two training data: SemCor and OMSTI. website

Sense-annotated corpus (two chapters of the Bible) of 594 manual annotations (English and Spanish). website

Almost 250 milion sense-annotations of over 35 million definitions for 256 languages. website

SEW: More than 200 million annotations of over 4 million different concepts and named entities. website

Babelified Wikipedia. website

Semantically Tagged glosses from the Princeton WordNet Gloss Corpus. An easy-to-use xml file. website

Publications

Alessandro Raganato, Yves Scherrer and Jörg Tiedemann.
The MuCoW test suite at WMT 2019: Automatically harvested multilingual contrastive word sense disambiguation test sets for machine translation. [paper] [bib] [code] [poster]
In Proceedings of the Fourth Conference on Machine Translation (WMT): Shared Task Papers. 2019.

Alessandro Raganato, Raúl Vázquez, Mathias Creutz and Jörg Tiedemann.
An Evaluation of Language-Agnostic Inner-Attention-Based Representations in Machine Translation. [paper] [bib] [code] [poster]
Proceedings of the 4th Workshop on Representation Learning for NLP (RepL4NLP). 2019.

Aarne Talman, Umut Sulubacak, Raúl Vázquez, Yves Scherrer, Sami Virpioja, Alessandro Raganato, Arvi Hurskainen and Jörg Tiedemann.
The University of Helsinki submissions to the WMT19 news translation task. [paper] [bib] [poster]
In Proceedings of the Fourth Conference on Machine Translation (WMT): Shared Task Papers. 2019.

Raúl Vázquez, Alessandro Raganato, Jörg Tiedemann and Mathias Creutz.
Multilingual NMT with a language-independent attention bridge. [paper] [bib] [code] [poster]
Proceedings of the 4th Workshop on Representation Learning for NLP (RepL4NLP). 2019.

Alessandro Raganato and Jörg Tiedemann.
An Analysis of Encoder Representations in Transformer-Based Machine Translation. [paper] [bib] [poster]
Proceedings of the 2018 EMNLP Workshop BlackboxNLP: Analyzing and Interpreting Neural Networks for NLP. 2018.

Alessandro Raganato, Yves Scherrer, Tommi Nieminen, Arvi Hurskainen, and Jörg Tiedemann.
The University of Helsinki submissions to the WMT18 news task. [paper] [bib] [poster]
In Proceedings of the Third Conference on Machine Translation (WMT): Shared Task Papers, pp. 488-495. 2018.

José Camacho-Collados, Claudio Delli Bovi, Alessandro Raganato and Roberto Navigli.
Sense Defs: a multilingual corpus of semantically annotated textual definitions. [paper] [bib] [website]
Language Resources and Evaluation (LRE), 1-28. 2018.

Alessandro Raganato, Claudio Delli Bovi and Roberto Navigli.
Neural Sequence Learning Models for Word Sense Disambiguation. [paper] [bib] [poster]
Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing (EMNLP), Copenhagen, Denmark, 7-11 September 2017.

Simone Papandrea, Alessandro Raganato and Claudio Delli Bovi.
SupWSD: A Flexible Toolkit for Supervised Word Sense Disambiguation. [paper] [bib] [poster] [website] [code]
Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing (EMNLP): System Demonstrations, Copenhagen, Denmark, 7-11 September 2017.

Claudio Delli Bovi and Alessandro Raganato.
SEW-EMBED at SemEval-2017 Task 2: Language-Independent Concept Representations from a Semantically Enriched Wikipedia. [paper] [bib] [poster] [website]
Proceedings of the 11th International Workshop on Semantic Evaluation (SemEval-2017), Vancouver, Canada, 30 July-4 August 2017.

Claudio Delli Bovi, José Camacho-Collados, Alessandro Raganato and Roberto Navigli.
EuroSense: Automatic Harvesting of Multilingual Sense Annotations from Parallel Text. [paper] [bib] [poster] [website]
Proceedings of the 55th annual meeting of the Association for Computational Linguistics (ACL), Vancouver, Canada, 30 July-4 August 2017.

Alessandro Raganato, José Camacho-Collados and Roberto Navigli.
Word Sense Disambiguation: A Unified Evaluation Framework and Empirical Comparison. [paper] [bib] [slides] [website]
Proceedings of the 15th European Chapter of the Association for Computational Linguistics (EACL) 2017, Valencia, Spain, 3-7 April 2017.

Alessandro Raganato, José Camacho-Collados, Antonio Raganato and Yunseo Joung.
Semantic Indexing of Multilingual Corpora and its Application on the History Domain. [paper] [bib] [poster] [website]
Proceedings of the Workshop on Language Technology Resources and Tools for Digital Humanities (LT4DH), COLING 2016, Osaka, Japan.

Alessandro Raganato, Claudio Delli Bovi and Roberto Navigli.
Automatic Construction and Evaluation of a Large Semantically Enriched Wikipedia. [paper] [bib] [poster] [slides] [website]
Proceedings of 25th International Joint Conference on Artificial Intelligence (IJCAI-16), New York City, New York, USA, 9-15 July 2016.

José Camacho-Collados, Claudio Delli Bovi, Alessandro Raganato and Roberto Navigli.
A Large-Scale Multilingual Disambiguation of Glosses. [paper] [bib] [slides] [website]
Proceedings of the 10th International Conference on Language Resources and Evaluation (LREC 2016), Portorož, Slovenia, 23-28 May 2016, pp. 1701-1708.

Federico Scozzafava, Alessandro Raganato, Andrea Moro and Roberto Navigli.
Automatic Identification and Disambiguation of Concepts and Named Entities in the Multilingual Wikipedia. [paper] [bib] [slides] [website]
Proceedings of the 14th Congress of the Italian Association for Artificial Intelligence (AI*IA 2015), Ferrara, Italy, September 23-25th, 2015.

Andrea Moro, Alessandro Raganato and Roberto Navigli.
Entity Linking meets Word Sense Disambiguation: A Unified Approach. [paper] [bib] [poster] [website]
Transactions of the Association for Computational Linguistics (TACL), 2, pp. 231-244, 2014.