Spoken Language Systems

Grzegorz Chrupała

I have moved to Tilburg University. This page is no longer maintained. See chrupala.me for up-to-date information.

News

Publications

My Google scholar citation statistics

• Afra Alishahi and Grzegorz Chrupała. 2012. Concurrent Acquisition of Word Meaning and Lexical Categories. EMNLP-CoNLL 2012.
  Paper | Poster
• Grzegorz Chrupała. 2012. Hierarchical clustering of word class distributions. NAACL-HLT 2012 Workshop on the Induction of Linguistic Structure.
  Paper
• Grzegorz Chrupała. 2012. Learning from evolving data streams: online triage of bug reports. EACL 2012.
  Paper | Slides | Data
• Grzegorz Chrupała. 2011. Efficient induction of probabilistic word classes with LDA. IJCNLP 2011.
  Paper | Slides | Code
• Grzegorz Chrupała, Saeedeh Momtazi, Michael Wiegand, Stefan Kazalski, Fang Xu, Benjamin Roth, Alexandra Balahur and Dietrich Klakow. 2010. Saarland University Spoken Language Systems at the Slot Filling Task of TAC KBP 2010. TAC 2010.
  Paper
• Grzegorz Chrupała, Georgiana Dinu and Benjamin Roth. 2010. Enriched syntax-based meaning representation for answer extraction. SIGIR 2010 Workshop: Query Representation and Understanding
  Paper | Poster
• Grzegorz Chrupała and Afra Alishahi. 2010. Online Entropy-based Model of Lexical Category Acquisition. CoNLL 2010
  Paper | Slides | Code
• Georgiana Dinu and Grzegorz Chrupała. 2010. Relatedness curves for acquiring paraphrases. ACL workshop GEMS 2010
  Paper
• Djamé Seddah, Grzegorz Chrupała, Özlem Çetinoğlu, Josef van Genabith and Marie Candito. 2010. Lemmatization and Lexicalized Statistical Parsing of Morphologically Rich Languages: the Case of French. NAACL SPMRL 2010 workshop
  Paper.
• Grzegorz Chrupała and Dietrich Klakow. 2010. A Named Entity Labeler for German: exploiting Wikipedia and distributional clusters. LREC 2010
  Paper | Code: SemiNER
• Afra Alishahi and Grzegorz Chrupała. 2009. Lexical Category Acquisition as an Incremental Process. PsychoCompLA-2009, Cogsci 2009
  Paper
• Michael Wiegand, Saeedeh Momtazi, Stefan Kazalski, Fang Xu, Grzegorz Chrupała and Dietrich Klakow. 2008. The Alyssa System at TAC QA 2008. TAC 2008
  Paper
• Grzegorz Chrupała, Georgiana Dinu and Josef van Genabith. 2008. Learning Morphology with Morfette. LREC 2008
  Paper | Code: Morfette
• Grzegorz Chrupała, Josef van Genabith. Using very large corpora to detect raising and control verbs. 2007. LFG07
  Paper
• Grzegorz Chrupała, Nicolas Stroppa, Josef van Genabith and Georgiana Dinu. 2007. Better Training for Function Labeling. RANLP 2007
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• Grzegorz Chrupała. 2006. Simple Data-Driven Context-Sensitive Lemmatization. SEPLN 2006
  Paper
• Grzegorz Chrupała and Josef van Genabith. 2006. Using Machine-Learning to Assign Function Labels to Parser Output for Spanish. COLING/ACL 2006
  Paper
• Grzegorz Chrupała and Josef van Genabith. 2006. Improving Treebank-Based Automatic LFG Induction for Spanish. LFG06
  Paper
• Xavier Carreras, Lluís Màrquez and Grzegorz Chrupała. 2004. Hierarchical Recognition of Propositional Arguments with Perceptrons. CoNLL-2004
  Paper
• Anthony Pym and Grzegorz Chrupała. 2005. The quantitative analysis of translation flows in the age of an international language. In Less Translated Languages, Albert Branchadell and Lovell Margaret West (eds.), 27-38. John Benjamins.
• Grzegorz Chrupała. 2003. Perl Scripting in Translation Project Management. In Across Languages and Cultures, Vol. 4, No. 1. (5 May 2003), pp. 109-132
  Paper
• Grzegorz Chrupała and Lidia Cámara. 2003. STAR Transit XV. In Entornos Informáticos de la Traducción Profesional, Gloria Corpas Pastor and María-José Varela Salinas, (eds.). Atrio, Granada.

Theses

• Grzegorz Chrupała. 2008. Towards a Machine-Learning Architecture for Lexical Functional Grammar Parsing. PhD dissertation, Dublin City University
  PDF | Single-spaced PDF
• Grzegorz Chrupała. 2003. Acquiring Verb Subcategorization from Spanish Corpora. DEA Thesis, University of Barcelona.
  PDF
• Grzegorz Chrupała. 1998. Bibliotheca in Fabula. The library motive in La biblioteca de Babel, The British Museum is Falling Down and Il nome della rosa. MA Thesis, University of Silesia.
  HTML

Software

• Colada: implements online and minibatch word class class induction using Latent Dirichlet Allocation (LDA) with an Online Gibbs sampler.
• LDA-wordclass: Soft word-class induction with Latent Dirichlet Allocation
• Lingo: Haskell NLP utilities
• Delta-H: Online entropy-based model of lexical category acquisition
• Sequor: a perceptron-based sequence labeler with a flexible feature template language. It is meant mainly for NLP applications such as Part of Speech tagging, syntactic chunking or Named Entity labeling. Includes:
  • SemiNER: a semi-supervised Named Entity labeler (with pre-trained models for German)
• Morfette: a tool for supervised learning of inflectional morphology. Comes with pre-trained models for Spanish and French.

Teaching

• Pattern and Speech Recognition, winter semester 2011/2012
• Preparatory course in Statistics (with Francesca Delogu)
• Statistical Natural Language Processing, summer semester 2011
• Pattern and Speech Recognition, winter semester 2010/2011
• META tutorial on Machine Learning for NLP (with Nicolas Stroppa), Barcelona Media, Oct 19-20 2010
  • Introduction
  • Linear models for classification
  • Sequence Labeling 1
  • Sequence Labeling 2
  • Theoretical and practical issues
  • KNN, Kernels, Margins
• Statistical Natural Language Processing, summer semester 2010
• Pattern and Speech recognition, winter semester 2009/2010
• Introduction to classification and sequence labeling at IRTG Annual Meeting 2009. Slides
• Two-day tutorial on Machine Learning at Dublin City University, 18-19 March 2009. Slides
• Statistical natural language processing, summer semester 2009
• Pattern and Speech recognition, winter semester 2008/9
• Statistical natural language processing, summer semester 2008

Contact

Saarland University
FR 7.4 Spoken Language Systems
Building C7 1, Room 0.04
66041 Saarbrücken
+49 681 302 58126
gchrupala@lsv.uni-saarland.de