Claudiu Mihăilă


2014

pdf bib
The Meta-knowledge of Causality in Biomedical Scientific Discourse
Claudiu Mihăilă | Sophia Ananiadou
Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14)

Causality lies at the heart of biomedical knowledge, being involved in diagnosis, pathology or systems biology. Thus, automatic causality recognition can greatly reduce the human workload by suggesting possible causal connections and aiding in the curation of pathway models. For this, we rely on corpora that are annotated with classified, structured representations of important facts and findings contained within text. However, it is impossible to correctly interpret these annotations without additional information, e.g., classification of an event as fact, hypothesis, experimental result or analysis of results, confidence of authors about the validity of their analyses etc. In this study, we analyse and automatically detect this type of information, collectively termed meta-knowledge (MK), in the context of existing discourse causality annotations. Our effort proves the feasibility of identifying such pieces of information, without which the understanding of causal relations is limited.

2013

pdf bib
Towards a Better Understanding of Discourse: Integrating Multiple Discourse Annotation Perspectives Using UIMA
Claudiu Mihăilă | Georgios Kontonatsios | Riza Theresa Batista-Navarro | Paul Thompson | Ioannis Korkontzelos | Sophia Ananiadou
Proceedings of the 7th Linguistic Annotation Workshop and Interoperability with Discourse

pdf bib
What causes a causal relation? Detecting Causal Triggers in Biomedical Scientific Discourse
Claudiu Mihăilă | Sophia Ananiadou
51st Annual Meeting of the Association for Computational Linguistics Proceedings of the Student Research Workshop

pdf bib
Extending an interoperable platform to facilitate the creation of multilingual and multimodal NLP applications
Georgios Kontonatsios | Paul Thompson | Riza Theresa Batista-Navarro | Claudiu Mihăilă | Ioannis Korkontzelos | Sophia Ananiadou
Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics: System Demonstrations

2012

pdf bib
What’s in a Name? Entity Type Variation across Two Biomedical Subdomains
Claudiu Mihăilă | Riza Theresa Batista-Navarro
Proceedings of the Student Research Workshop at the 13th Conference of the European Chapter of the Association for Computational Linguistics

2010

pdf bib
Romanian Zero Pronoun Distribution: A Comparative Study
Claudiu Mihăilă | Iustina Ilisei | Diana Inkpen
Proceedings of the Seventh International Conference on Language Resources and Evaluation (LREC'10)

Anaphora resolution is still a challenging research field in natural language processing, lacking a algorithm that correctly resolves anaphoric pronouns. Anaphoric zero pronouns pose an even greater challenge, since this category is not lexically realised. Thus, their resolution is conditioned by their prior identification stage. This paper reports on the distribution of zero pronouns in Romanian in various genres: encyclopaedic, legal, literary, and news-wire texts. For this purpose, the RoZP corpus has been created, containing almost 50000 tokens and 800 zero pronouns which are manually annotated. The distribution patterns are compared across genres, and exceptional cases are presented in order to facilitate the methodological process of developing a future zero pronoun identification and resolution algorithm. The evaluation results emphasise that zero pronouns appear frequently in Romanian, and their distribution depends largely on the genre. Additionally, possible features are revealed for their identification, and a search scope for the antecedent has been determined, increasing the chances of correct resolution.

2009

pdf bib
Bimodal Corpora Terminology Extraction: Another Brick in the Wall
Claudiu Mihăilă | Dalila Mekhaldi
Proceedings of the International Conference RANLP-2009