一种基于模式匹配的超媒体查询模型

A Hypermedia Retrieval Model Based on Pattern Matching

在基于语义网络的超媒体模型基础上,通过引入数据库模式、模式约束图以及分层模式依赖图等概念,提出了一种基于模式匹配的超媒体查询模型,给出了图形代数的形式化定义,并证明了该模型的查询能力.该模型具有较高的表达能力,能有效地降低用户的认知负载.

Built on the semantic network based hypermedia model, a hypermedia retrieval model based on pattern matching is proposed in this paper by introducing the concepts of database schema, model constraint graph and stratified schema dependency graph. Furthermore the formal definition of graph algebra is given out, which guaranteed the model抯 retrieval ability. On the one hand, this model can decrease the users?cognitive overhead. On the other hand, it guarantees the expressive capability of the retrieval.