Title
Repository synchronization in the OAI framework
Abstract
The Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) began as an alternative to distributed searching of scholarly eprint repositories. The model embraced by the OAI-PMH is that of metadata harvesting, where value-added services (by a "service provider") are constructed on cached copies of the metadata extracted from the repositories of the harvester's choosing. While this model dispenses with the well known problems of distributed searching, it introduces the problem of synchronization. Stated simply, this problem arises when the service provider's copy of the metadata does not match the metadata currently at the constituent repositories. We define some metrics for describing the synchronization problem in the OAI-PMH. Based on these metrics, we study the synchronization problem of the OAI-PMH framework and propose several approaches for harvesters to implement better synchronization. In particular, if a repository knows its update frequency, it can publish it in an OAI-PMH Identify response using an optional About container that borrows from RDF Site Syndication (RSS) Format.
Year
DOI
Venue
2003
10.1109/JCDL.2003.1204863
JCDL
Keywords
Field
DocType
Internet,digital libraries,electronic publishing,meta data,open systems,protocols,query formulation,synchronisation,OAI-PMH,Open Archives Initiative Protocol for Metadata Harvesting,RDF Site Syndication Format,distributed searching,harvester estimation,repository synchronization,scholarly e-print repository,service provider,synchronization problem metrics,update frequency,value-added service
Metadata,Metadata repository,Open Archives Initiative,World Wide Web,Protocol for Metadata Harvesting,Information retrieval,Computer science,Service provider,Digital library,RSS,RDF
Conference
ISSN
ISBN
Citations 
2575-7865
0-7695-1939-3
7
PageRank 
References 
Authors
0.62
10
4
Name
Order
Citations
PageRank
Xiaoming Liu146139.13
Kurt Maly2567139.93
Mohammad Zubair358789.90
Michael L. Nelson41458198.74