NewsExplorer
MedISys
NewsBrief
EMM-Labs


Alexandra Balahur

European Commission
Joint Research Centre - Ispra site
Institute for the Protection and Security of the Citizen (IPSC)

T.P. 267
21027 Ispra (VA), Italy

Alexandra.Balahur_@_ jrc.ec.europa.eu (spam protection)

http://langtech.jrc.it
http://emm.jrc.it/overview.html
http://press.jrc.it/NewsExplorer

Tel: +39 - 0332 78 5808
Fax: +39 - 0332 78 5154

Summary Publications
Professional Experience University Education
Courses Awards
Languages Disclaimer

Summary

Currently I am a member of the Language Technology Group in the Institute for the Protection and Security of the Citizen (IPSC) at the European Commission's Joint Research Centre (JRC). My main research areas are Sentiment Analysis, Opinion Mining, Emotion Detection and Social Media.


I obtained my PhD in Computer Science, with the thesis entitled "Methods and Resources for Sentiment Analysis in Multilingual Documents of Different Text Types". My supervisors were Prof. Andres Montoyo and Dr. Ralf Steinberger.


I did my PhD studies within the program "Applications of Computer Science to Natural Language Processing", at the Department of Software and Computing Systems, University of Alicante, Spain. During my PhD, I was a trainee for six months at the European Commission Joint Research Centre in Ispra, Italy and a trainee for three months at the Spoken Language Systems Group at the University of Saarland, in Saarbruecken, Germany.


I am a Computer Science graduate from the "A.I.Cuza" University, in Iasi, Romania (2007). My undergraduate thesis was on Recognizing Textual Entailment, under the supervision of Prof. Dan Cristea, in collaboration with Prof. Adrian Iftene.


Professional Experience


Nov 2011 - present

Postdoctoral Fellow in Multilingual Text Analysis at the European Commission's Joint Research Centre (JRC) in Ispra, Italy:


Multilingual sentiment analysis (opinion mining); Social media. (See the JRC's Language Technology page)

Oct 2007 - Sept 2011

Doctoral Fellow at the Department of Software and Computing Systems of the University of Alicante, Spain. During this period, apart from my doctoral research and studies, I have been involved in European, national and private projects, as well as in teaching activities.


Feb 2011 - June 2011

Teacher of the course "Fundamentos Informáticos en la Ingeniería de Edificación", University of Alicante

Sept 2010 - Dec 2010

Teaching assistant in the "Information Systems and Technologies" course, University of Alicante

May 2010 - Aug. 2010

Visiting Researcher - Universität des Saarlandes

Apr 2009 - Sept 2009

Trainee - European Commission Joint Research Centre, IPSC, GlobeSec, OPTIMA.

April 2006 - July 2006

Laboratory Assistant Institut für Flugzeugbau und Leichtbau, Universität Carolo Wilhelmina zu Braunschweig.

University Education


2007 - 2011

Ph.D. in Computer Science, University of Alicante, Department of Software and Computing Systems (DLSI), Alicante, Spain, with the thesis entitled: Methods and Resources for Sentiment Analysis in Multilingual Documents of Different Text Types

2007 - 2009

Diploma of Advanced Studies in Computer Science, University of Alicante, Department of Software and Computing Systems (DLSI), Alicante, Spain, with the dissertation entitled: Sentiment Analysis Applied to Multilingual, Multigenre Texts

2003 - 2007

B.Sc. in Computer Science, Faculty of Computer Science, "A. I. Cuza" University (FII), Iasi, Romania

2005 - 2006

Erasmus stay, Technische Universitaet "Carolo Wilhelmina" zu Braunschweig , Braunschweig, Germany


Language Skills


Romanian

Mother tongue;

English

Cambridge Certificate in Advanced English (grade A);

Spanish

DELE Certificate at C2 level; I studied and taught classes at the University of Alicante and lived in Spain for 4 years;

German

Kultusministerium Sprachdiplom KMK Stufe 2 (grade A); Goethe Institut - Zertifikat fuer Deutsch als Fremdsprache;

French

Upper-intermediate language certificate from the Language Centre of the University of Alicante;

Italian

Courses taken at the JRC. C1 level attested by the British Institutes Language Academy.


Publications (Please contact the author for papers not available here) (Look on Google Scholar)

Theses


Book chapters


  • Balahur, A.; Boldrini, E.; Montoyo, A.; Martínez-Barco, P. OpAL: A System for Mining Opinion from Text for Business Applications.Business Intelligence Applications and the Web: Models, Systems and Technologies. IGI Global, 2012. 147-177. Web. 27 Jan. 2012. doi:10.4018/978-1-61350-038-5.ch007

Journal Articles (selected)


  • Balahur, A.; Hermida, J.M.; Montoyo, A. Detecting Implicit Expressions of Sentiment in Text Based on Commonsense Knowledge. Journal: Journal of Decision Support Systems – Special Issue on “Computational Approaches to Subjectivity and Sentiment Analysis” (Elsevier) - forthcoming
  • Balahur, A.; Hermida J.M.; Montoyo, A. Building and Exploiting EmotiNet: a Knowledge Base for Emotion Detection Based on the Appraisal Theory Model. IEEE Transactions on Affective Computing. http://doi.ieeecomputersociety.org/10.1109/T-AFFC.2011.33
  • Balahur, A.; Kabadjov, M.; Steinberger, J.; Steinberger, R.; Montoyo, A. Challenges and Solutions in the Opinion Summarization of User-Generated Contents. Intelligent Information Systems (Springer). DOI: 10.1007/s10844-011-0194-z
  • Boldrini, E.; Balahur, A.; Martinez-Barco, P.; Montoyo, A. Using EmotiBlog to Annotate and Analyse Subjectivity in the New Textual Genres. Journal Data Mining and Knowledge Discovery (Springer) - forthcoming
  • Lloret, E.; Balahur, A.; Gomez, J.M.; Montoyo, A.; Palomar, M. Towards a Unified Framework for Opinion Retrieval, Mining and Summarization. Intelligent Information Systems (Springer) - forthcoming.
  • Balahur, A.; Kabadjov, M.; Steinberger, J. Exploiting Higher-level Semantic Information for the Opinion-oriented Summarization of Blogs. International Journal of Computational Linguistics and Applications

Conference and Workshop Proceedings


  • Balahur, A.; Hermida, J.M.; Montoyo, A. Detecting Emotions in Social Affective Situations Using the EmotiNet Knowledge Base. Proceedings of the International Symposium on Neural Networks - ISNN (3) 2011: 611-620.

  • Balahur, A.; Hermida, J.M.; Montoyo, A.; Muñoz, R. EmotiNet: A Knowledge Base for Emotion Detection in Text Built on the Appraisal Theories.In Proceedings of the 19th Conference on Applications of Natural Language to Information Systems (NLDB 2011). Lecture Notes in Computer Science, 6716, pp. 27-39.

  • Balahur, A.; Hermida, J.M.; Montoyo, A. Detecting Implicit Expressions of Sentiment in Text Based on Commonsense Knowledge. In Proceedings of the 2nd Workshop on Computational Approaches to Subjectivity and Sentiment Analysis (WASSA 2.011), Satellite workshop to ACL-HLT 2011, Portland, Oregon.

  • Lloret, E.; Balahur, A.; Gomez, J.M.; Montoyo, A.; Palomar, M. Towards a Unified Approach for Opinion Question Answering and Summarization.In Proceedings of the 2nd Workshop on Computational Approaches to Subjectivity and Sentiment Analysis (WASSA 2.011), Satellite workshop to ACL-HLT 2011, Portland, Oregon.

  • Balahur, A.; Boldrini, E.; Montoyo, A.; Martínez-Barco, P.Going Beyond Traditional QA Systems: Challenges and Keys in Opinion Question Answering. In Proceedings of the 23rd International Conference on Computational Linguistics (COLING 2010).

  • Wiegand, M.; Balahur, A., Roth, B.; Klakow, D., Montoyo, A.A Survey on the Role of Negation in Sentiment Analysis. InProceedings of the Workshop on Negation and Speculation in Natural Language Processing, NeSp-NLP 2010.

  • Balahur, A.; Montoyo, A. OpAL: Applying Opinion Mining Techniques for the Disambiguation of Sentiment Ambiguous Adjectives in SemEval-2 Task 18. In Proceedings of SemEval-2, the 5th International Workshop on Semantic Evaluation, satellite workshop to ACL 2010.

  • Boldrini, E.; Balahur, A., Martínez-Barco, P.; Montoyo, A.EmotiBlog: a finer-grained and more precise learning of subjectivity expression models. In Proceedings of the 4th Linguistic Annotation Workshop (LAW IV), satellite workshop to ACL 2010.

  • Balahur, A.; Boldrini, E.; Montoyo, A.; Martínez-Barco, P.The OpAL System at NTCIR 8 MOAT. In Proceedings of the 8th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering, and Cross-Lingual Information Access (NTCIR 8), 2010.

  • Balahur, A.; Boldrini, E.; Montoyo, A.; Martínez-Barco, P.Opinion Question Answering:Towards a Unified Approach. In Proceedings of the 19th European Conference on Artificial Intelligence (ECAI 2010).

  • Balahur, A.; Steinberger, R.; Kabadjov, M.; Zavarella, V.; Van der Goot, E.; Halkia, M.; Pouliquen, B.; Belyaeva, J.Sentiment Analysis in the News. In: Proceedings of the 7th International Conference on Language Resources and Evaluation (LREC'2010), pp. 2216-2220. Valletta, Malta, 19-21 May 2010.

  • Balahur, A., Kabadjov, M. Steinberger, J. Exploiting Higher-level Semantic Information for the Opinion-oriented Summarization of Blogs. International Journal of Computational Linguistics and Applications, ISSN: 0976-0962, Vol. 1, No. 1-2, pp. 45-59.

  • Martín, T.; Balahur, A.; Montoyo, A.; Pons, A. Word Sense Disambiguation in Opinion Mining: Pros and Cons. In Journal Research in Computing Science, Special Issue: Natural Language Processing and its Applications, ISSN: 1870-4069, Vol. 46, pp. 119-130.

  • Martín-Wanton, T.; Pons-Porrata, A.; Montoyo-Guijarro, A.; Balahur, A. Opinion Polarity Detection – Using Word Sense Disambiguation to Determine the Polarity of Opinions. In Proceedings of the 2nd International Conference on Agents and Artificial Intelligence (ICAART 2010).

  • Balahur, A.; Boldrini, E.; Montoyo, A.; Martínez-Barco, P.Opinion and Generic Question Answering systems: a Performance Analysis. In Proceedings of the ACL-IJCNLP 2009 Conference.

  • Balahur, A.; Kabadjov, M.;Steinberger, J.; Steinberger, R.; Montoyo, A. Summarizing Opinions in Blog Threads. Proceedings of the 23rdPacific Asia Conference on Language, Information and Computation (PACLIC), pp. 606-613, Hong Kong, 3-5 December 2009.

  • Kabadjov, M.; Balahur, A.; Boldrini, E.Sentiment Intensity: Is It a Good Summary Indicator?. Proceedings of the 4th Language Technology ConferenceLTC, pp. 380-384. Poznan, Poland, 6-8.11.2009.

  • Balahur, A.; Boldrini, E.; Montoyo, A.; Martínez-Barco, P. Evaluating Question Answering Systems on Opinión Queries. Proceedings of TSA 2009 (The First CIKM Workshop on Topic-Sentiment Analysis for Mass Opinion Measurement).

  • Balahur, A.; Steinberger, R. Rethinking Opinion Mining in Newspaper Articles: from Theory to Practice and Back. Proceedings of the first workshop on Opinion Mining and Sentiment Analysis (WOMSA 2009)

  • Balahur, A.; Boldrini, E.; Montoyo, A.; Martínez-Barco, P. A comparative study of Open Domain and Opinion Question Answering Systems for Factual and Opinionated Queries.RANLP 2009.

  • Balahur, A.; Lloret, E.; Boldrini, E.; Montoyo, A.; Palomar, M; Martínez-Barco, P. Summarizing Threads in Blogs Using Opinion Polarity. Proceedings of the EETTs 2009 Workshop, satellite to the RANLP 2009 Conference.

  • Balahur, A.; Steinberger, R.; van der Goot, E.; Pouliquen, B.; Kabadjov, M.Opinion Mining from Newspaper Quotations. In Proceedings of the Workshop on Intelligent Analysis and Processing of Web News Content, 2009 IEEE/WIC/ACM International Conference on Web Intelligence held in conjunction with IAT’09, September 2009, Milan, Italy

  • Balahur, A.; Boldrini, E.; Montoyo, A.; Martínez-Barco, P.A Comparative Study of Open Domain and Opinion Question Answering Systems for Factual and Opinionated Queries. In Proceedings of the Conference on Recent Advances in Natural Language Processing (RANLP 2009).

  • Balahur, A.; Boldrini, E.; Montoyo, A.; Martínez-Barco, P.A Comparative Study of Open Domain and Opinion Question Answering Systems for Factual and Opinionated Queries. In Proceedings of the Conference on Recent Advances in Natural Language Processing (RANLP 2009).

  • Balahur, A.; Montoyo, A.Semantic Approaches to Fine and Coarse-Grained Feature-Based Opinion Mining. In Proceedings of the 14thInternational Conference on Applications of Natural Language to Information Systems (NLDB 2009).

  • Boldrini, E.; Balahur, A., Martínez-Barco, P.; Montoyo, A.EmotiBlog: an Annotation Scheme for Emotion Detection and Analysis in Non-traditional Textual Genres. In Proceedings of the 5thInternational Conference on Data Mining (DMIN 2009).

  • Lloret, E.; Balahur, A.; Palomar, M.; Montoyo, A.Towards Building a Competitive Opinion Summarization System: Challenges and Keys. In Proceedings of the NAACL-HLT 2009 Student Research Workshop, 2009.

  • Balahur, A.; Boldrini, E.; Montoyo, A.; Martínez-Barco, P.Fact Versus Opinion Questions Classification and Answering: Challenges and Keys. In Proceedings of the International Conference on Artificial Intelligence (ICAI 2009).

  • Balahur, A.; Boldrini, E.; Montoyo, A.; Martínez-Barco, P.Cross Topic Opinion Mining for Real-time Human-Computer Interaction (Application of EmotiBlog – an Annotation Schema for Emotion Detection). In Proceedings of the Workshop on Natural Language Processing and Cognitive Science (NLPCS 2009).

  • Balahur, A.; Kozareva, Z.; Montoyo, A.Determining the Polarity and Source of Opinions Expressed in Political Debates. In Proceedings of the 10thInternational Conference on Intelligent Text Processing and Computational Linguistics (CICLing) 2009 (Lecture Notes in Computer Science No. 5449, 2009)

  • Balahur, A.; Montoyo, A.A Semantic Relatedness Approach to Classifying Opinion from Web Reviews.In Procesamiento del Lenguaje Natural No. 42, 2009.

  • Balahur, A.; Lloret, E.; Ferrández, O.;Montoyo, A., Palomar, M.; Muñoz, R.The DLSIUAES Team’s Participation in the TAC 2008 Tracks Proceedings of the Text Analysis Conference 2008 Workshop, Washington, USA, 2008.

  • Iftene, A.; Balahur, A.A Language Independent Approach for Recognizing Textual Entailment. Research in Computing Science , Vol: 334, 2008.
  • Balahur, A.; Montoyo, A.Applying a Culture Dependent Emotion Triggers Database for Text Valence and Emotion Classification. In Proceedings of the AISB 2008 Symposium on Affective Language in Human and Machine, Aberdeen, Scotland, 2008.

  • Balahur, A.; Montoyo, A.Building a Recommender System Using Community Level Social Filtering.In Proceedings of the 5th International Workshop on Natural Language and Cognitive Science, Barcelona, Spain, 2008.

  • Balahur, A.; Montoyo, A.Definición de disparador de emoción asociado a la cultura y aplicación a la clasificación de la valencia y de la emoción en textos.Procesamiento del Lenguaje Natural , Vol: 40 , Num: 40, 2008.



Site Meter

Please send comments on this page to Alexandra Balahur (Email address format: Firstname.Lastname@jrc.it)

Last update: 19 December 2011