图 书 馆
本体驱动的研究过程抽取Ontology Driven Extraction of Research Processes |
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| 课程网址: | http://videolectures.net/iswc2018_pertsas_ontology_extraction_res... |
| 主讲教师: | Vayianos Pertsas |
| 开课单位: | 经济与商业大学 |
| 开课时间: | 2018-11-22 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | We address the automatic extraction from publications of two key concepts for representing research processes: the concept of research activity and the sequence relation between successive activities. These representations are driven by the Scholarly Ontology (SO), specifically conceived for documenting research processes. Unlike usual named entity extraction tasks, we are facing textual descriptions of activities of widely variable length, while pairs of successive activities often span different sentences. We developed and experimented with several sliding window classifiers using Logistic Regression, SVMs, and Random Forests, as well as a two-stage pipeline classifier. Our classifiers employ task-specific features, as well as word, part-of-speech and dependency embeddings, engineered to exploit distinctive traits of research publication written in English. The extracted activities and sequences are associated with other relevant information from publication metadata and stored as RDF triples in a knowledge base. Evaluation on datasets from three disciplines, Digital Humanities, Bioinformatics, and Medicine, shows very promising performance. |
| 关 键 词: | 自动提取代表研究过程; 学术本体论; RDF三元组存储; 数据集的评估显示 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2023-01-07：cyh |
| 最后编审: | 2023-01-07：cyh |
| 阅读次数: | 22 |