An integrated approach for searching and browsing in heterogeneous peer-to-peer networks
Henrik Nottelmann, Gudrun Fischer, A. Titarenko, André Nurzenski · 2005
Peer-to-peer networks have recently gained importance as environ-ments for digital libraries. In this paper, we propose a service-oriented architecture for supporting two important access modes, searching and browsing, in a hierarchical network. Service-oriented architectures allow for loosely-coupled systems, and the combina-tion of multiple services enables integration of the two paradigms. The services have been designed for optimised reusability and ex-tensibility. E.g., distributed searching and browsing both use the same statistical metadata, and thus the same storage service, for solving their tasks. Browsing services provide an overview over the available content, and interactive exploration of relevant por-tions of the data space. Resource selection services improve the efficiency of the search process by cost-optimised query routing, and schema mapping services facilitate the integration of data from heterogeneous schemas into one distributed digital library. 1.