Sami Virpioja

Publication Activity (10 Years)

Years Active: 2005-2024
Publications (10 Years): 39

Top Topics

Chat Conversations

Machine Translation

Speech Recognition

Morphological Segmentation

Top Venues

Publications

Jörg Tiedemann, Mikko Aulamo, Daria Bakshandaeva, Michele Boggia, Stig-Arne Grönroos, Tommi Nieminen, Alessandro Raganato, Yves Scherrer, Raúl Vázquez, Sami Virpioja
Democratizing neural machine translation with OPUS-MT. Lang. Resour. Evaluation 58 (2) (2024)
Aarne Talman, Hande Çelikkanat, Sami Virpioja, Markus Heinonen, Jörg Tiedemann
Uncertainty-Aware Natural Language Inference with Stochastic Weight Averaging. CoRR (2023)
Mikko Aulamo, Ona de Gibert, Sami Virpioja, Jörg Tiedemann
Unsupervised Feature Selection for Effective Parallel Corpus Filtering. EAMT (2023)
Aarne Talman, Hande Çelikkanat, Sami Virpioja, Markus Heinonen, Jörg Tiedemann
Uncertainty-Aware Natural Language Inference with Stochastic Weight Averaging. NoDaLiDa (2023)
Jörg Tiedemann, Mikko Aulamo, Daria Bakshandaeva, Michele Boggia, Stig-Arne Grönroos, Tommi Nieminen, Alessandro Raganato, Yves Scherrer, Raúl Vázquez, Sami Virpioja
Democratizing Machine Translation with OPUS-MT. CoRR (2022)
Matti Varjokallio, Sami Virpioja, Mikko Kurimo
Morphologically motivated word classes for very large vocabulary speech recognition of Finnish and Estonian. Comput. Speech Lang. 66 (2021)
Juho Leinonen, Sami Virpioja, Mikko Kurimo
Grapheme-Based Cross-Language Forced Alignment: Results with Uralic Languages. NoDaLiDa (2021)
Mikko Aulamo, Sami Virpioja, Yves Scherrer, Jörg Tiedemann
Boosting Neural Machine Translation from Finnish to Northern Sámi with Rule-Based Backtranslation. NoDaLiDa (2021)
Peter Smit, Sami Virpioja, Mikko Kurimo
Advances in subword-based HMM-DNN speech recognition across languages. Comput. Speech Lang. 66 (2021)
Hande Çelikkanat, Sami Virpioja, Jörg Tiedemann, Marianna Apidianaki
Controlling the Imprint of Passivization and Negation in Contextualized Representations. BlackboxNLP@EMNLP (2020)
Katri Leino, Juho Leinonen, Mittul Singh, Sami Virpioja, Mikko Kurimo
FinChat: Corpus and evaluation setup for Finnish chat conversations on everyday topics. CoRR (2020)
Mikko Aulamo, Umut Sulubacak, Sami Virpioja, Jörg Tiedemann
OpusTools and Parallel Corpus Diagnostics. LREC (2020)
Stig-Arne Grönroos, Sami Virpioja, Mikko Kurimo
Morfessor EM+Prune: Improved Subword Segmentation with Expectation Maximization and Pruning. CoRR (2020)
Yves Scherrer, Stig-Arne Grönroos, Sami Virpioja
The University of Helsinki and Aalto University submissions to the WMT 2020 news and low-resource translation tasks. WMT@EMNLP (2020)
Stig-Arne Grönroos, Sami Virpioja, Mikko Kurimo
Transfer learning and subword sampling for asymmetric-resource one-to-many neural translation. CoRR (2020)
Stig-Arne Grönroos, Sami Virpioja, Mikko Kurimo
Morfessor EM+Prune: Improved Subword Segmentation with Expectation Maximization and Pruning. LREC (2020)
Mikko Aulamo, Sami Virpioja, Jörg Tiedemann
OpusFilter: A Configurable Parallel Corpus Filtering Toolbox. ACL (demo) (2020)
Mittul Singh, Peter Smit, Sami Virpioja, Mikko Kurimo
Effects of Language Relatedness for Cross-lingual Transfer Learning in Character-Based Language Models. CoRR (2020)
Mittul Singh, Peter Smit, Sami Virpioja, Mikko Kurimo
Effects of Language Relatedness for Cross-lingual Transfer Learning in Character-Based Language Models. SLTU/CCURL@LREC (2020)
Katri Leino, Juho Leinonen, Mittul Singh, Sami Virpioja, Mikko Kurimo
FinChat: Corpus and Evaluation Setup for Finnish Chat Conversations on Everyday Topics. INTERSPEECH (2020)
Stig-Arne Grönroos, Sami Virpioja, Mikko Kurimo
Transfer learning and subword sampling for asymmetric-resource one-to-many neural translation. Mach. Transl. 34 (4) (2020)
Mittul Singh, Sami Virpioja, Peter Smit, Mikko Kurimo
Subword RNNLM Approximations for Out-Of-Vocabulary Keyword Search. CoRR (2020)
Yves Scherrer, Raúl Vázquez, Sami Virpioja
The University of Helsinki Submissions to the WMT19 Similar Language Translation Task. WMT (3) (2019)
Mittul Singh, Sami Virpioja, Peter Smit, Mikko Kurimo
Subword RNNLM Approximations for Out-Of-Vocabulary Keyword Search. INTERSPEECH (2019)
Aarne Talman, Umut Sulubacak, Raúl Vázquez, Yves Scherrer, Sami Virpioja, Alessandro Raganato, Arvi Hurskainen, Jörg Tiedemann
The University of Helsinki submissions to the WMT19 news translation task. CoRR (2019)
Aarne Talman, Umut Sulubacak, Raúl Vázquez, Yves Scherrer, Sami Virpioja, Alessandro Raganato, Arvi Hurskainen, Jörg Tiedemann
The University of Helsinki Submissions to the WMT19 News Translation Task. WMT (2) (2019)
Sami Virpioja, Minna Lehtonen, Annika Hultén, Henna Kivikari, Riitta Salmelin, Krista Lagus
Using Statistical Models of Morphology in the Search for Optimal Units of Representation in the Human Mental Lexicon. Cogn. Sci. 42 (3) (2018)
Stig-Arne Grönroos, Sami Virpioja, Mikko Kurimo
Cognate-aware morphological segmentation for multilingual neural translation. WMT (shared task) (2018)
Matti Varjokallio, Sami Virpioja, Mikko Kurimo
First-Pass Techniques for Very Large Vocabulary Speech Recognition ff Morphologically Rich Languages. SLT (2018)
Stig-Arne Grönroos, Sami Virpioja, Mikko Kurimo
Cognate-aware morphological segmentation for multilingual neural translation. CoRR (2018)
Seppo Enarvi, Peter Smit, Sami Virpioja, Mikko Kurimo
Automatic Speech Recognition with Very Large Conversational Finnish and Estonian Vocabularies. CoRR (2017)
Peter Smit, Siva Reddy Gangireddy, Seppo Enarvi, Sami Virpioja, Mikko Kurimo
Character-based units for unlimited vocabulary continuous speech recognition. ASRU (2017)
Peter Smit, Sami Virpioja, Mikko Kurimo
Improved Subword Modeling for WFST-Based Speech Recognition. INTERSPEECH (2017)
Stig-Arne Grönroos, Sami Virpioja, Mikko Kurimo
Extending hybrid word-character neural machine translation with multi-task learning of morphological analysis. WMT (2017)
Peter Smit, Siva Reddy Gangireddy, Seppo Enarvi, Sami Virpioja, Mikko Kurimo
Aalto system for the 2017 Arabic multi-genre broadcast challenge. ASRU (2017)
Seppo Enarvi, Peter Smit, Sami Virpioja, Mikko Kurimo
Automatic Speech Recognition With Very Large Conversational Finnish and Estonian Vocabularies. IEEE ACM Trans. Audio Speech Lang. Process. 25 (11) (2017)
Teemu Ruokolainen, Oskar Kohonen, Kairit Sirts, Stig-Arne Grönroos, Mikko Kurimo, Sami Virpioja
A Comparative Study of Minimally Supervised Morphological Segmentation. Comput. Linguistics 42 (1) (2016)
Matti Varjokallio, Mikko Kurimo, Sami Virpioja
Class n-Gram Models for Very Large Vocabulary Speech Recognition of Finnish and Estonian. SLSP (2016)
Stig-Arne Grönroos, Sami Virpioja, Mikko Kurimo
Hybrid Morphological Segmentation for Phrase-Based Machine Translation. WMT (2016)
Stig-Arne Grönroos, Sami Virpioja, Mikko Kurimo
Tuning Phrase-Based Segmented Translation for a Morphologically Complex Target Language. WMT@EMNLP (2015)
Sami Virpioja, Stig-Arne Grönroos
LeBLEU: N-gram-based Translation Evaluation Score for Morphologically Complex Languages. WMT@EMNLP (2015)
Stig-Arne Grönroos, Sami Virpioja, Peter Smit, Mikko Kurimo
Morfessor FlatCat: An HMM-Based Method for Unsupervised and Semi-Supervised Learning of Morphology. COLING (2014)
Teemu Ruokolainen, Oskar Kohonen, Sami Virpioja, Mikko Kurimo
Painless Semi-Supervised Morphological Segmentation using Conditional Random Fields. EACL (2014)
Peter Smit, Sami Virpioja, Stig-Arne Grönroos, Mikko Kurimo
Morfessor 2.0: Toolkit for statistical morphological segmentation. EACL (2014)
Matti Varjokallio, Mikko Kurimo, Sami Virpioja
Learning a subword vocabulary based on unigram likelihood. ASRU (2013)
Teemu Ruokolainen, Oskar Kohonen, Sami Virpioja, Mikko Kurimo
Supervised Morphological Segmentation in a Low-Resource Learning Setting using Conditional Random Fields. CoNLL (2013)
Sami Virpioja, Mari-Sanna Paukkeri, Abhishek Tripathi, Tiina Lindh-Knuutila, Krista Lagus
Evaluating vector space models with canonical correlation analysis. Nat. Lang. Eng. 18 (3) (2012)
Sami Virpioja, Oskar Kohonen, Krista Lagus
Evaluating the effect of word frequencies in a probabilistic generative model of morphology. NODALIDA (2011)
Sami Virpioja, Minna Lehtonen, Annika Hultén, Riitta Salmelin, Krista Lagus
Predicting Reaction Times in Word Recognition by Unsupervised Learning of Morphology. ICANN (1) (2011)
Sami Virpioja, Ville T. Turunen, Sebastian Spiegler, Oskar Kohonen, Mikko Kurimo
Empirical Comparison of Evaluation Methods for Unsupervised Learning of Morphology. Trait. Autom. des Langues 52 (2) (2011)
Sami Virpioja, Jaakko J. Väyrynen, André Mansikkaniemi, Mikko Kurimo
Applying Morphological Decompositions to Statistical Machine Translation. WMT@ACL (2010)
Oskar Kohonen, Sami Virpioja, Krista Lagus
Semi-Supervised Learning of Concatenative Morphology. SIGMORPHON (2010)
Tommi Vatanen, Jaakko J. Väyrynen, Sami Virpioja
Language Identification of Short Text Segments with N-gram Models. LREC (2010)
Mikko Kurimo, Sami Virpioja, Ville T. Turunen, Krista Lagus
Morpho Challenge 2005-2010: Evaluations and Results. SIGMORPHON (2010)
Mathias Creutz, Sami Virpioja, Anna Kovaleva
Web Augmentation of Language Models for Continuous Speech Recognition of SMS Text Messages. EACL (2009)
Mikko Kurimo, Sami Virpioja, Ville T. Turunen, Teemu Hirsimäki
Morpho Challenge - Evaluation of algorithms for unsupervised learning of morphology in various tasks and languages. HLT-NAACL (Demos) (2009)
Mikko Kurimo, Sami Virpioja, Ville T. Turunen, Graeme W. Blackwood, William J. Byrne
Overview and Results of Morpho Challenge 2009. CLEF (Working Notes) (2009)
Sami Virpioja, Oskar Kohonen
Unsupervised Morpheme Discovery with Allomorfessor. CLEF (Working Notes) (2009)
Mikko Kurimo, Sami Virpioja, Ville T. Turunen, Graeme W. Blackwood, William Byrne
Overview and Results of Morpho Challenge 2009. CLEF (1) (2009)
Sami Virpioja, Oskar Kohonen, Krista Lagus
Unsupervised Morpheme Analysis with Allomorfessor. CLEF (1) (2009)
Adrià de Gispert, Sami Virpioja, Mikko Kurimo, William J. Byrne
Minimum Bayes Risk Combination of Translation Hypotheses from Alternative Morphological Decompositions. HLT-NAACL (Short Papers) (2009)
Oskar Kohonen, Sami Virpioja, Mikaela Klami
Allomorfessor: Towards Unsupervised Morpheme Analysis. CLEF (Working Notes) (2008)
Oskar Kohonen, Sami Virpioja, Mikaela Klami
Allomorfessor: Towards Unsupervised Morpheme Analysis. CLEF (2008)
Timo Honkela, Sami Virpioja, Jaakko J. Väyrynen
Adaptive Translation: Finding Interlingual Mappings Using Self-Organizing Maps. ICANN (1) (2008)
Sami Virpioja, Jaakko J. Väyrynen, Mathias Creutz, Markus Sadeniemi
Morphology-aware statistical machine translation based on morphs induced in an unsupervised manner. MTSummit (2007)
Vesa Siivola, Teemu Hirsimäki, Sami Virpioja
On Growing and Pruning Kneser-Ney Smoothed N-Gram Models. IEEE Trans. Speech Audio Process. 15 (5) (2007)
Sami Virpioja, Mikko Kurimo
Compact n-gram models by incremental growing and clustering of histories. INTERSPEECH (2006)
Teemu Hirsimäki, Mathias Creutz, Vesa Siivola, Mikko Kurimo, Sami Virpioja, Janne Pylkkönen
Unlimited vocabulary speech recognition with morph language models applied to Finnish. Comput. Speech Lang. 20 (4) (2006)
Mathias Creutz, Krista Lagus, Sami Virpioja
Unsupervised Morphology Induction Using Morfessor. FSMNLP (2005)