Research Focus: Projects

I lead the Research Group in Computational Linguistics and Language Technology
PULS: Automatic Surveillance of News Media
- Epidemic Surveillance through Analysis of On-Line News, in collaboration with MedISys, developed at the European Commission's Joint Research Centre (EC-JRC)
- Security and cross-border criminal activity, in collaboration with Frontex, the EU Agency for the Protection of External Frontiers
- Supported by:
  - The ContentFactory Project, funded by TEKES
  - Algodan: Algorithmic Data Analysis
    Finnish National Center of Excellence
Etymon: Computational etymology
- Modeling genetic relationships and reconstruction in Uralic etymological data
- Supported by the UraLink Project of the Academy of Finland
Etymological BANANAS:
- HIIT Pump-Priming Project
- Modeling genetic relationships among members of a language family, using methods from population genetics on linguistic etymological data. Application to different language families, starting with Uralic and Turkic.
- Collaboration:
  - J Corander's group, at the Department of Mathematics and Statistics: population-genetics models
  - Russian Academy of Sciences: analysis of etymological databases, from the StarLing Project
  - KOTUS: etymological databases of the Uralic language family.

Edited Collections

Thierry Poibeau, Horacio Saggion, Jakub Piskorski, Roman Yangarber (Eds.)
Theory and Applications of Natural Language Processing. Springer-Verlag (2012) Berlin, Heidelberg

Scientific Events

Co-organizer:

BSNLP 2013:
The 4^th Biennial Workshop on Balto-Slavic Natural Language Processing,
co-located with the 51^st annual meeting of the Association for Computational Linguistics
August 4-9, 2013, in Sofia, Bulgaria.
MINUCS:
Workshop on Mining User-Generated Content for Security,
at UCMedia-2009: Conference on User-Centric Media
December 2009, Venice, Italy
NODALIDA 2009:
Nordic Conference on Computational Linguistics.
May 2009, Odense, Denmark

Information-theoretic modeling of etymological sound change: Invited speaker at Workshop on comparing approaches to measuring linguistic differences; (2011) Gothenburg, Sweden
Discovering complex networks of events and relations in News Surveillance (video)

Roman Yangarber

University Researcher

Contact Information

Email: Roman.Yangarber[at]cs.helsinki.fi

Mobile: +358 9 191 51145

Homepage: http://www.cs.helsinki.fi/Roman.Yangarber

Room: A224

Phone: 51145

Principal Investigator of

Computational Linguistics

2013

Automatic detection of stable grammatical features in n-grams

Kopotev, M., Pivovarova, L., Kochetkova, N. & Yangarber, R. 2013

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Evaluation of Epidemic Intelligence Systems Integrated in the Early Alerting and Reporting Project for the Detection of A/H5N1 Influenza Events

Barboza, P., Vaillant, L., Mawudeku, A., Nelson, N. P., Hartley, D. M., Madoff, L. C., Linge, J. P., Collier, N., Brownstein, J. S., Yangarber, R., Astagneau, P. & Global Hlth Security Initiative 05.03.2013 In : PLoS One. 8, 3, p. e57252 9 p.

Publication: Contribution to journal âº A1 Refereed journal article

Event representation across genre

Pivovarova, L., Huttunen, S. & Yangarber, R. 2013

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Information-theoretic modeling of etymological sound change

Wettig, J., Nouri, J., Reshetnikov, K. & Yangarber, R. 2013 Approaches to measuring linguistic differences. Borin, L. & Saxena, A. (eds.). Mouton de Gruyter, ( Trends in Linguistics; 265).

Publication: Contribution to book/anthology âº A3 Contribution to book/other compilations (refereed)

MDL-based Models for Transliteration Generation

Nouri, J., Pivovarova, L. & Yangarber, R. 2013

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Overview of Internet biosurveillance

Nelson, N. & Arthur, Ray; Barboza, Philippe; Collier, Nigel; Lightfoot, Nigel; Linge, Jens; van der Goot, Erik; Mawudeku, Abla; Madoff, Larry; Vaillant, Laetitia; Walters, Ronald; Mantero, Jas; Corley, Courtney; Brownstein, John 13.05.2013 In : Clinical Microbiology and Infection.

Publication: Contribution to journal âº A1 Refereed journal article

Predicting Relevance of Event Extraction for the End User

Huttunen, S., Vihavainen, A., Du, M. & Yangarber, R. 2013 Multi-source, Multilingual Information Extraction and Summarization. Poibeau, T., Saggion, H., Piskorski, J. & Yangarber, R. (eds.). Berlin, Heidelberg : Springer-Verlag, p. 163-176 14 p. (Theory and Applications of Natural Language Processing).

Publication: Contribution to book/anthology âº A3 Contribution to book/other compilations (refereed)

Techniques for Multilingual Security-related Event Extraction from Online News

Atkinson, M., Du, M., Piskorski, J., Tanev, H., Yangarber, R. & Zavarella, V. 2013 Computational Linguistics—Applications . PrzepiÅ³rkowski, A. (ed.). Springer-Verlag, p. 163-186 (Studies in Computational Intelligence).

Publication: Contribution to book/anthology âº A3 Contribution to book/other compilations (refereed)

2012

Information Extraction: Past, Present and Future

Piskorski, J. & Yangarber, R. 2012 Multi-source, Multilingual Information Extraction and Summarization: Theory and Applications of Natural Language Processing. Springer, p. 23-49 27 p.

Publication: Contribution to book/anthology âº B2 Contribution to book/other compilations (non-refereed)

Information-theoretic Methods for Analysis and Inference in Etymology

Wettig, J., Nouri, J., Reshetnikov, K. & Yangarber, R. 2012 p. 53-56 4 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Multi-source, Multilingual Information Extraction and Summarization

Poibeau, T. (ed.), Saggion, H. (ed.), Piskorski, J. (ed.) & Yangarber, R. (ed.) 2012 Berlin, Heidelberg: Springer-Verlag. (Theory and Applications of Natural Language Processing).

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

Using Context and Phonetic Features in Models of Etymological Sound Change

Wettig, H., Reshetnikov, K. & Yangarber, R. 2012 p. 108-116 9 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2011

Building Support Tools for Russian-Language Information Extraction

Kopotev, M., Du, M., von Etter, P., Novikov, M., Tarbeeva, N. & Yangarber, R. 2011 p. 380-387 7 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

MDL-based modeling of etymological sound change in the Uralic language family

Wettig, J., Hiltunen, S. & Yangarber, R. 2011 p. 79-82 4 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

MDL-based models for aligning etymological data

Wettig, J., Hiltunen, S. & Yangarber, R. 2011 7 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Multilingual Real-time Event Extraction for Border Security Intelligence Gathering

Atkinson, M., Piskorski, J., Van der Goot, E. & Yangarber, R. 2011 Counterterrorism and Open Source Intelligence. Wiil, U. K. (ed.). Wien: Springer, Vol. 2, p. 355-390 36 p. (Lecture Notes in Social Networks).

Publication: Contribution to book/anthology âº A3 Contribution to book/other compilations (refereed)

Probabilistic models for alignment of etymological data

Wettig, J. & Yangarber, R. 2011 p. 246-253 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Relevance prediction in information extraction using discourse and lexical features

Huttunen, S. M., Vihavainen, A., von Etter, P. & Yangarber, R. 2011 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2010

Assessment of Utility in Web Mining for the Domain of Public Health

von Etter, P., Huttunen, S., Vihavainen, A., Vuorinen, M. & Yangarber, R. 2010

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Filtering news for epidemic surveillance: towards processing more languages with fewer resources

Lejeune, G., Doucet, A., Yangarber, R. & Lucas, N. 2010 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Hidden Markov Models for Induction of Morphological Structure of Natural Language

Wettig, J., Hiltunen, S. & Yangarber, R. 2010 6 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

MedISys: Medical Information System

Linge, J. P., Steinberger, R., Fuart, F., Bucci, S., Belyaeva, J., Gemo, M., Al-Khudhairy, D., Yangarber, R. & van der Goot, E. 2010 Advanced ICTs for Disaster Management and Threat Detection: Collaborative and Distributed Frameworks. Asimakopoulou, E. (ed.). IGI Global, p. 131-142 12 p.

Publication: Contribution to book/anthology âº A3 Contribution to book/other compilations (refereed)

News Mining for Border Security Intelligence

Atkinson, M. , Belyaeva, J. , Zavarella, V. , Piskorski, J. , Huttunen, S. , Vihavainen, A. & Yangarber, R. 2010 1 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Real-Time Text Mining in Multilingual News for the Creation of a Pre-frontier Intelligence Picture

Atkinson, M. , Piskorski, J. , Belyaeva, J. , Huttunen, S. & Yangarber, R. 2010 9 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

The landscape of international event-based biosurveillance

Hartley, D. , Nelson, N. , Walters, R. , Arthur, R. , Yangarber, R. , Madoff, L. , Linge, J. , Mawudeku, A. , Collier, N. , Brownstein, J. , Thinus, G. & Lightfoot, N. 2010 In : Emerging Health Threats Journal. 2010/3, p. 2-18. 17 p.

Publication: Contribution to journal âº A1 Refereed journal article

Utility Evaluation of Tools for Collaborative Development and Maintenance of Ontologies

Norta, A. , Yangarber, R. & Carlson, L. 2010 p. 207-214. 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2009

Automated Event Extraction in the Domain of Border Security

Atkinson, M. , Piskorski, J. , Tanev, H. , van der Goot, E. , Yangarber, R. & Zavarella, V. 2009 p. 321-326. 6 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Automatic Epidemiological Surveillance from On-line News in MedISys and PULS

Yangarber, R. & Steinberger, R. 2009

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Internet surveillance systems for early alerting of health threats

Linge, J., Steinberger, R., Weber, T., Yangarber, R., van der Goot, E., Al Khudhairy, D. & Stilianakis, N. 2009 In : Eurosurveillance. 14, 13

Publication: Contribution to journal âº A1 Refereed journal article

MINUCS-2009: Mining User-Generated Content for Security.: Proceedings of the Workshop at the UCMedia-2009: ICST Conference on User-Centric Media

Brefeld, U. (ed.), Jungermann, F. (ed.) & Yangarber, R. (ed.) 2009 Venice.

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

2008

A Database of the Uralic Language Family for Etymological Research

Yangarber, R., Salmenkivi, M. & Välisalo, M. 2008 University of Helsinki, Department of Computer Science. (Technical Report C; C-2008-38).

Publication: Book/anthology âº D4 Published development or research report

Content Collection and Analysis in the Domain of Epidemiology

Yangarber, R., von Etter, P. & Steinberger, R. 2008 6 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Multi-source, Multilingual Information Extraction and Summarization: MMIES-2

Poibeau, T. (ed.), Saggion, H. (ed.) & Yangarber, R. (ed.) 2008 Association for Computational Linguistics. 75 p.

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

Proceedings of the ECML Workshop on High-level Information Extraction

Blohm, S. (ed.), Brefeld, U. (ed.), Jungermann, F. (ed.) & Yangarber, R. (ed.) 2008

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

Text Mining from the Web for Medical Intelligence

Steinberger, R., Fuart, F., van der Groot, E., Best, C., von Etter, P. & Yangarber, R. 2008 p. 295-310.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2007

Combining Information about Epidemic Threats from Multiple Sources

Yangarber, R., Best, C., von Etter, P., Fuart, F., Horby, D. & Steinberger, R. 2007 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Combining Information Retrieval and Information Extraction for Medical Intelligence

Yangarber, R., Steinberger, R., Best, C., von Etter, P., Fuart, F. & Horby, D. 2007

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2006

Proceedings of the Workshop on Information Extraction Beyond The Document

Califf, M. E. (ed.), Greenwood, M. A. (ed.), Stevenson, M. (ed.) & Yangarber, R. (ed.) 2006 Association for Computational Linguistics.

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

Verification of Facts across Document Boundaries

Yangarber, R. 2006

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2005

Information Extraction from Epidemiological Reports

Yangarber, R., Jokipii, L., Rauramo, A. & Huttunen, S. M. 2005 2 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Mining the Semantics of Text via Counter-Training

Yangarber, R. 2005 p. 647-657. 11 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Redundancy-based Correction of Automatically Extracted Facts

Yangarber, R. & Jokipii, L. 2005

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Use of Deep Syntax Parsing in Cross-Language Information Extraction

Yangarber, R. & Bogatyrev, K. 2005 p. 18-24. 7 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2004

User-Oriented Evaluation in Information Extraction

Yangarber, R. 2004

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2003

Acquisition of Domain Knowledge

Yangarber, R. 2003 Extraction in the Web Era. Pazienza, M. (ed.). 2700. Rome, Italy : Springer-Verlag p. 1-28. (Lecture Notes in Computer Science, Vol. 2700).

Publication: Contribution to book/anthology âº A3 Contribution to book/other compilations (refereed)

Bootstrapped Learning of Semantic Classes from Positive and Negative Examples

Lin, W., Yangarber, R. & Grishman, R. 2003

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Counter-Training in Discovery of Semantic Patterns

Yangarber, R. 2003

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Information Extraction for Enhanced Access to Disease Outbreak Reports

Grishman, R., Huttunen, S. & Yangarber, R. 2003 In : Journal of Biomedical Informatics. 35, 4, p. 236-246.

Publication: Contribution to journal âº A1 Refereed journal article

2002

Complexity of Event Structure in IE Scenarios

Huttunen, S., Yangarber, R. & Grishman, R. 2002

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Diversity of Scenarios in Information Extraction

Huttunen, S. M., Yangarber, R. & Grishman., R. 2002

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Real-Time Event Extraction for Infectious Disease Outbreaks

Grishman, R., Huttunen, S. & Yangarber, R. 2002 p. 366-369.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Unsupervised Learning of Generalized Names

Yangarber, R., Lin, W. & Grishman, R. 2002

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2000

Automatic Acquisition of Domain Knowledge for Information Extraction

Yangarber, R., Grishman, R., Tapanainen, P. & Huttunen, S. 2000 p. 940-946.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Extraction Pattern Discovery through Corpus Analysis

Yangarber, R. & Grishman, R. 2000

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Issues in Corpus-Trained Information Extraction

Grishman, R. & Yangarber, R. 2000 p. 107-112.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Machine Learning of Extraction Patterns from Un-annotated Corpora

Yangarber, R. & Grishman, R. 2000

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Unsupervised Discovery of Scenario-Level Patterns for Information Extraction

Yangarber, R., Grishman, R., Tapanainen, P. & Huttunen, S. M. 2000

Publication: Conference contribution âº A4 Article in conference publication (refereed)

1998

Deriving Transfer Rules from Dominance-Preserving Alignments

Meyers, A., Yangarber, R., Grishman, R., Macleod, C. & Moreno-Sandoval, A. 1998

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Japanese IE System and Customization Tool

Nabata, C., Sekine, S. & Yangarber, R. 1998

Publication: Conference contribution âº A4 Article in conference publication (refereed)

NYU: Description of the Proteus/PET System as Used for MUC-7 ST

Yangarber, R. & Grishman, R. 1998

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Transforming Examples into Patterns for Information Extraction

Yangarber, R. & Grishman, R. 1998

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Using NOMLEX to Produce Nominalization Patterns for Information Extraction

Meyers, A., Macleod, C., Yangarber, R., Grishman, R., Barret, L. & Reeves, R. 1998

Publication: Conference contribution âº A4 Article in conference publication (refereed)

1997

Customization of Information Extraction Systems: invited talk

Yangarber, R. & Grishman, R. 1997 p. 1-11.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

1996

Alignment of Shared Forests for Bilingual Corpora

Meyers, A., Yangarber, R. & Grishman, R. 1996 p. 460-465.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

ThinkSheet: A Tool for Tailoring Complex Documents

Piatko, P., Yangarber, R., Lin, D. & Shasha, D. 1996

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Address: Department of Computer Science, P.O. 68 (Gustaf Hällströmin katu 2b), FI-00014 UNIVERSITY OF HELSINKI, FINLAND
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General e-mail: info [at] cs.helsinki.fi
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Research Focus: Projects

Publications

Edited Collections

Scientific Events

Invited Presentations

Roman Yangarber

Contact Information

Principal Investigator of

Teaching

2013 autumn Natural Language Processing Hantering av naturligt språk Natural Language Processing

2013 spring Seminar: Models of Language Evolution and Language Change Seminar: Models of Language Evolution and Language Change Seminar: Models of Language Evolution and Language Change

2011 autumn Natural Language Processing Hantering av naturligt språk Natural Language Processing

2010 autumn Natural Language Processing Hantering av naturligt språk Natural Language Processing

2008 autumn Seminar: Text Mining Seminar: Text Mining Seminar: Text Mining

2008 spring Natural Language Processing Hantering av naturligt språk Natural Language Processing

2007 autumn Seminar: Finding Facts in Text Seminar: Finding Facts in Text Seminar: Finding Facts in Text

2006 autumn Natural Language Processing Hantering av naturligt språk Natural Language Processing

2005 autumn Information Extraction from Text Information Extraction from Text Information Extraction from Text

Publications

2013

2012

2011

2010

2009

2008

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2006

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2013 autumn
Natural Language Processing

Hantering av naturligt språk

Natural Language Processing

2013 spring
Seminar: Models of Language Evolution and Language Change

Seminar: Models of Language Evolution and Language Change

Seminar: Models of Language Evolution and Language Change

2011 autumn
Natural Language Processing

Hantering av naturligt språk

Natural Language Processing

2010 autumn
Natural Language Processing

Hantering av naturligt språk

Natural Language Processing

2008 autumn
Seminar: Text Mining

Seminar: Text Mining

Seminar: Text Mining

2008 spring
Natural Language Processing

Hantering av naturligt språk

Natural Language Processing

2007 autumn
Seminar: Finding Facts in Text

Seminar: Finding Facts in Text

Seminar: Finding Facts in Text

2006 autumn
Natural Language Processing

Hantering av naturligt språk

Natural Language Processing

2005 autumn
Information Extraction from Text

Information Extraction from Text

Information Extraction from Text