Appendix D: MUC-7 Information Extraction Task Definition (version 5.1)
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چکیده
Information extraction in the sense of the Message Understanding Conferences has been traditionally defined as the extraction of information from a text in the form of text strings and processed text strings which are placed into slots labeled to indicate the kind of information that can fill them. So, for example, a slot labeled NAME would contain a name string taken directly out of the text or modified in some well-defined way, such as by deleting all but the person's surname. Another example could be a slot called WEAPON which requires as a fill one of a set of designated classes of weapons based on some categorization of the weapons that has meaning in the events of import such as GUN or BOMB in a terrorist event. The input to information extraction is a set of texts, usually unclassified newswire articles, and the output is a set of filled slots. The set of filled slots may represent an entity with its attributes, a relationship between two or more entities, or an event with various entities playing roles and/or being in certain relationships. Entities with their attributes are extracted in the Template Element task; relationships between two or more entities are extracted in the Template Relation task; and events with various entities playing roles and/or being in certain relationships are extracted in the Scenario Template task.
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تاریخ انتشار 1998