The main goal of CYCLADES is to develop an open collaborative virtual archive service environment supporting both single scholars as well as scholarly communities in carrying out their work. In particular, it will provide functionality to access large, heterogeneous, multidisciplinary archives distributed over the Web and to support remote collaboration among the members of communities of interest.CYCLADES will run on the data environment composed by the archives that adhere to the Open Archives Initiatives harvesting protocol specifications (http://www.openarchives.org ).From the technical point of view, CYCLADES will consist of the following federation of interoperable services: Access ServiceIt harvests information from the set of OAI compliant archives, and indexes and stores the gathered information in a local database. Collection ServiceIt provides mechanisms for dynamically structuring the overall information space into meaningful (from some community's perspective) collections. Search and Browse ServiceIt supports the users in formulating queries and develops plans for their evaluation. In particular, it provides an advanced multilevel browse facility, completely integrated with the search facility, that allows one to browse at schema, attributes, and document levels. Filtering ServiceIt supports information filtering on the basis of individual user profiles, and profiles of the working communities the user belongs to. User and community profiles are automatically inferred by monitoring the user behavior. Recommendation ServiceIt provides recommendations about new published articles within a working community. The choice about what recommendations to send and to whom is based on both the user and the working community profiles. Collaborative Work ServiceIt supports collaboration between members of communities and project groups by providing functionality for creating shared working spaces referencing users' own documents, collections, recommendations, related links, textual annotations, ratings, etc. In this presentation, we will introduce each of the above services and we will discuss how each of them is influenced by the content harvested by the OAI-MPH.
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