【摘要】 针对传统Web数据集成系统实用性、伸缩性和适应性差的问题,提出了一种新的Web数据集成系统体系结构UQSIQ,实现Web规模的数据集成。系统根据用户查询的模式映射相关领域,选择Web数据库,执行查询排序查询结果。介绍了组成系统的关键组件,及领域映射和用户模式匹配等处理大规模异构Web数据的关键技术。更多还原

【Abstract】 In the context of data integration on the web, traditional data integration system lacks scalability, flexibilityare, is no longer adequate. A new data integration architecture, UQSIQ, is proposed, which achieves web-scale data integration. Key components in the system are introduced. UQSIQ maps user query schema to a suitable domain, selects web databases, querys and then ranks results. Key techniques, domain mapping and user query schema matching, to handle the scale and heterogeneity of structured web data are described.更多还原