图 书 馆
本体论中重要概念与关系的识别Identfying Potentiallcy Important Conepts and Relations in an Ontology |
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| 课程网址: | http://videolectures.net/iswc08_wu_ipicro/ |
| 主讲教师: | Gang Wu |
| 开课单位: | 阿尔伯塔大学 |
| 开课时间: | 2008-11-24 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | More and more ontologies have been published and used widely on the web. In order to make good use of an ontology, especially a new and complex ontology, we need methods to help understand it first. Identifying potentially important concepts and relations in an ontology is an intuitive but challenging method. In this paper, we first define four features for potentially important concepts and relation from the ontological structural point of view. Then a simple yet effective Concept-And-Relation-Ranking (CARRank) algorithm is proposed to simultaneously rank the importance of concepts and relations. Different from the traditional ranking methods, the importance of concepts and the weights of relations reinforce one another in CARRank in an iterative manner. Such an iterative process is proved to be convergent both in principle and by experiments. Our experimental results show that CARRank has a similar convergent speed as the PageRank-like algorithms, but a more reasonable ranking result. |
| 关 键 词: | 识别本体; 本体论; 关系排序 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-05-05：lxf |
| 阅读次数: | 35 |