图 书 馆
知识网络的结构动力学Structural Dynamics of Knowledge Networks |
|
| 课程网址: | https://videolectures.net/videos/icwsm2013_preusse_knowledge_netw... |
| 主讲教师: | 信息不详。欢迎您在右侧留言补充。 |
| 开课单位: | 信息不详。欢迎您在右侧留言补充。 |
| 开课时间: | 2014-04-03 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | We investigate the structural patterns of the appearance and disappearance of links in dynamic knowledge networks. Human knowledge is nowadays increasingly created and curated online, in a collaborative and highly dynamic fashion. The knowledge thus created is interlinked in nature, and an important open task is to understand its temporal evolution. In this paper, we study the underlying mechanisms of changes in knowledge networks which are of structural nature, i.e., which are a direct result of a knowledge network's structure. Concretely, we ask whether the appearance and disappearance of interconnections between concepts (items of a knowledge base) can be predicted using information about the network formed by these interconnections. In contrast to related work on this problem, we take into account the disappearance of links in our study, to account for the fact that the evolution of collaborative knowledge bases includes a high proportion of removals and reverts. We perform an empirical study on the best-known and largest collaborative knowledge base, Wikipedia, and show that traditional indicators of structural change used in the link analysis literature can be classified into four classes, which we show to indicate growth, decay, stability and instability of links. We finally use these methods to identify the underlying reasons for individual additions and removals of knowledge links. |
| 关 键 词: | 动态知识网络; 结构性模式; 传统结构变化指标 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2025-04-11：yuhongrui |
| 最后编审: | 2025-04-23：yuhongrui |
| 阅读次数: | 3 |