图 书 馆
注意你的元数据：利用语义的配置，适应，和科学的工作流程中的出处Mind Your Metadata: Exploiting Semantics for Configuration, Adaptation, and Provenance in Scientific Workflows |
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| 课程网址: | http://videolectures.net/iswc2011_szekely_workflows/ |
| 主讲教师: | Pedro Szekely |
| 开课单位: | 南加州大学 |
| 开课时间: | 2011-11-25 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Scientific metadata containing semantic descriptions of scientific data is expensive to capture and is typically not used across entire data analytic processes. We present an approach where semantic metadata is generated as scientific data is being prepared, and then subsequently used to configure models and to customize them to the data. The metadata captured includes sensor descriptions, data characteristics, data types, and process documentation. This metadata is then used in a workflow system to select analytic models dynamically and to set up model parameters automatically. In addition, all aspects of data processing are documented, and the system is able to generate extensive provenance records for new data products based on the metadata. As a result, the system can dynamically select analytic models based on the metadata properties of the data it is processing, generating more accurate results. We show results in analyzing stream metabolism for watershed ecosystem management. |
| 关 键 词: | 语义元数据; 配置模型; 代谢流分析 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-06-28：yumf |
| 阅读次数: | 53 |