中文摘要：

对等网可以方便地解决数字图书馆在C／S模式下的访问瓶颈。提出一种基于超节点对等网的数字图书馆语义架构，采用语义优先的策略解决负载均衡和可靠性。语义对等网环境下的数字图书馆的异构节点之间需要解决互操作问题，给出一种本体映射算法，从语法、词汇和语境三个方面进行概念的匹配，实验表明算法是有效的。

英文摘要：

The P2P network can be utilized to make up for the access deficiency of digital libraries under the C/S pattern. A semantic architecture of digital libraries based on super-P2P is proposed, employing semantic-first method to solve the load balancing and reliability. An algorithm for ontology mapping on digital libraries in semantic P2P, its concept match concluding syntax, lexis and context, is given to resolve the interoperability among heterogeneous peers of digital libraries in semantic P2P, and experiments have indicated that the algorithm is effective.