Title |
Meta-Knowledge Annotation of Bio-Events |
Authors |
Raheel Nawaz, Paul Thompson, John McNaught and Sophia Ananiadou |
Abstract |
Biomedical corpora annotated with event-level information provide an important resource for the training of domain-specific information extraction (IE) systems. These corpora concentrate primarily on creating classified, structured representations of important facts and findings contained within the text. However, bio-event annotations often do not take into account additional information (meta-knowledge) that is expressed within the textual context of the bio-event, e.g., the pragmatic/rhetorical intent and the level of certainty ascribed to a particular bio-event by the authors. Such additional information is indispensible for correct interpretation of bio-events. Therefore, an IE system that simply presents a list of bare bio-events, without information concerning their interpretation, is of little practical use. We have addressed this sparseness of meta-knowledge available in existing bio-event corpora by developing a multi-dimensional annotation scheme tailored to bio-events. The scheme is intended to be general enough to allow integration with different types of bio-event annotation, whilst being detailed enough to capture important subtleties in the nature of the meta-knowledge expressed about different bio-events. To our knowledge, our scheme is unique within the field with regards to the diversity of meta-knowledge aspects annotated for each event. |
Topics |
Corpus (creation, annotation, etc.), Information Extraction, Information Retrieval, Metadata |
Full paper |
Meta-Knowledge Annotation of Bio-Events |
Slides |
Meta-Knowledge Annotation of Bio-Events |
Bibtex |
@InProceedings{NAWAZ10.306,
author = {Raheel Nawaz and Paul Thompson and John McNaught and Sophia Ananiadou}, title = {Meta-Knowledge Annotation of Bio-Events}, booktitle = {Proceedings of the Seventh International Conference on Language Resources and Evaluation (LREC'10)}, year = {2010}, month = {may}, date = {19-21}, address = {Valletta, Malta}, editor = {Nicoletta Calzolari (Conference Chair) and Khalid Choukri and Bente Maegaard and Joseph Mariani and Jan Odijk and Stelios Piperidis and Mike Rosner and Daniel Tapias}, publisher = {European Language Resources Association (ELRA)}, isbn = {2-9517408-6-7}, language = {english} } |