Meta-Knowledge Annotation of Bio-Events
Meta-Knowledge Annotation of Bio-Events
复制标题
生物事件的元知识注释
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
S. Ananiadou
中科院分区：
文献类型：
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作者：
R. Nawaz;Paul Thompson;J. McNaught;S. Ananiadou
标注有事件级信息的生物医学语料库为特定领域信息抽取（IE）系统的训练提供了重要的资源。这些语料库主要集中在创建文本中包含的重要事实和发现的分类，结构化表示。然而，生物事件注释通常不考虑在生物事件的文本上下文内表达的附加信息（元知识），例如，语用/修辞意图和作者归因于特定生物事件的确定性水平。这些额外的信息是不可或缺的正确解释的生物事件。因此，一个IE系统，简单地提出了一个列表的裸生物事件，没有关于他们的解释的信息，是没有什么实际用途。我们已经解决了现有的生物事件语料库中的元知识的稀疏性，通过开发一个多维的注释计划，适合生物事件。该方案旨在足够通用，以允许与不同类型的生物事件注释集成，同时足够详细，以捕获关于不同生物事件表达的元知识的性质中的重要微妙之处。据我们所知，我们的计划是唯一的领域内的元知识方面的多样性注释为每个事件。
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.