图 书 馆
FRED作为事件提取工具FRED as an Event Extraction Tool |
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| 课程网址: | https://videolectures.net/iswc2013_gangemi_event_extraction/ |
| 主讲教师: | Aldo Gangemi |
| 开课单位: | 认知科学与技术研究所 |
| 开课时间: | 2013-11-28 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Events are elusive entities; as the authors of argue, even human annotators do not agree on what is an event and what is its boundary in terms of the extension of its participants, temporal and geospatial extent, etc. More aspects of events appear when trying to recognize or extract them from text: polarity of speaker's judgment on events, negation, modality, relations (temporal, causal, declarative, etc.) to other events, etc. FRED is a tool to automatically transform knowledge extracted from text into RDF and OWL, i.e. it is a machine reader for the Semantic Web. It is event- centric, therefore it natively supports event extraction. In a recent landscape analysis of knowledge extraction tools [3], FRED has got .73 precision, .93 recall, and .87 accuracy, largely better than the other tools attempting event extraction. |
| 关 键 词: | FRED; 事件提取工具; 地理空间范围; 知识提取工具 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2024-01-12：cyh |
| 最后编审: | 2024-01-18：cyh |
| 阅读次数: | 16 |