CAJ | 학술논문

随着在线数据库应用的流行,整个互联网已经被迅速"深化".对于某一特定领域的deep Web,不同的站点往往会提供不同查询能力的查询接口.为了能够集成同一领域内的各个数据源,首先要解决的问题就是查询接口的集成.但是面对数量众多和结构各异的查询接口,基于人工或规则的集成方案显然无法适用.针对这种状况,提出了基于树合并的查询接口全自动集成方法.树结构可以充分体现查询接口属性之间的结构关系,通过树的合并来实现查询接口的集成.该方法不但能保持各个原始接口的结构特征,还具备良好的扩展性,以适应不断频繁更新的查询接口.最后通过多个领域的测试数据证明了本方法的有效性.
수착재선수거고응용적류행,정개호련망이경피신속"심화".대우모일특정영역적deep Web,불동적참점왕왕회제공불동사순능력적사순접구.위료능구집성동일영역내적각개수거원,수선요해결적문제취시사순접구적집성.단시면대수량음다화결구각이적사순접구,기우인공혹규칙적집성방안현연무법괄용.침대저충상황,제출료기우수합병적사순접구전자동집성방법.수결구가이충분체현사순접구속성지간적결구관계,통과수적합병래실현사순접구적집성.해방법불단능보지각개원시접구적결구특정,환구비량호적확전성,이괄응불단빈번경신적사순접구.최후통과다개영역적측시수거증명료본방법적유효성.
The Web has been rapidly"deepened"with the prevalence of online databases.For a domain of interest,there often exist many such sources with varied querying capabilities.The query interfaces integration is one of the critical steps toward the integration of heterogeneous Web sources.But the scale of the problem and the diversity of the sources present serious challenges to the conventional manual or rule-based approaches to schema integration.To address these challenges,an interface integration approach via merging schema trees is proposed.The hierarchical nature of query interface can be captured using an ordered tree.And the query interfaces integration is achieved via merging trees.This approach not only can preserve the structure of the individual query interfaces,but also has good scalability to meet the frequently updating.Finally,experiments are performed on five domains to show the effectiveness of the proposed approach.