Geospatial Information Semantic Retrieval Algorithm Research Based on Geo-ontology
文献类型：会议论文
| 作者 | Liu W. ; Du Y. Y. ; Zhang H. R. ; Xiao R. L. |
| 出版日期 | 2009 |
| 关键词 | Geo-ontology spatial information retrieval semantic similarity degree |
| 页码 | 23-28 |
| 英文摘要 | spatial information retrieval which is mainly catalog service based on metadata is the foundation of spatial information sharing. Today's information retrieval methods in catalog service are typically limited to keyword searches or matches of sub-strings, which do not meet user's retrieval demand. This paper presents a semantic similarity degree algorithm, in which geo-ontology is compared from concept of the hierarchical structure similarity degree and property similarity degree to adjust the relations of concept. Firstly, overall evaluating the geo-ontology concept hierarchical structure similarity degree and attribute similarity degree; secondly, the semantic similarity degree was calculated as the basis for spatial information retrieval; In the end, the retrieval algorithm was applied in the "Ocean Grid Portal", the retrieval results demonstrate the feasibility and effectiveness of the semantic similarity degree retrieval algorithm. |
| 收录类别 | CPCI |
| 会议录出版者 | Ieee |
| 语种 | 英语 |
| ISBN号 | 978-1-4244-4562-2 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/25204]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Liu W.,Du Y. Y.,Zhang H. R.,et al. Geospatial Information Semantic Retrieval Algorithm Research Based on Geo-ontology[C]. 见:. |
入库方式： OAI收割
来源：地理科学与资源研究所
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