Unicorn: The myth of federated search realized simply. Unifying DSpace repositories with the PKP Harvester tool

Davison, John; Gilbertson, Keith

Title:

Unicorn: The myth of federated search realized simply. Unifying DSpace repositories with the PKP Harvester tool

dc.contributor.author	Davison, John	en_US
dc.contributor.author	Gilbertson, Keith	en_US
dc.contributor.corporatename	Ohio Library and Information Network	en_US
dc.coverage.temporal	Date: 2009-05-21 08:30 AM – 10:00 AM
dc.date.accessioned	2009-06-11T20:56:26Z
dc.date.available	2009-06-11T20:56:26Z
dc.date.issued	2009-05-21	en_US
dc.description	4th International Conference on Open Repositories	en_US
dc.description	This presentation was part of the session : DSpace User Group Presentations	en_US
dc.description	Date: 2009-05-21 08:30 AM – 10:00 AM
dc.description.abstract	The Ohio Digital Resource Commons, located at http://drc.ohiolink.edu, is a union of DSpace repositories operated by higher education institutions in Ohio. The repositories are largely organized and supported by OhioLINK, a consortium of 89 Ohio college and university libraries. In support of the vision of the Digital Resource Commons as a statewide resource, the repository operators saw an immediate need for a federated search tool. A "build it now" approach was taken, and federated searching was implemented in a short timeframe at OhioLINK using the PKP Harvester (http://pkp.sfu.ca/?q=harvester) software. A demonstration of the federated search feature at the Digital Resource Commons will be given, highlighting local customizations that were made to PKP Harvester and DSpace in support of the project. These customizations include changes made to mimic the appearance and behavior of existing search interfaces at OhioLINK, and changes made to meet expressed user requirements. Particular attention will be given to a DSpace change that allows image thumbnails to be displayed in federated search results. Issues encountered during the configuration, implementation, and deployment of the PKP Harvester and DSpace OAI-PMH server will be presented, and the choices made in response to these issues will be explained. The process of integrating the search results with the DSpace interface will be detailed, including ongoing efforts to improve the user experience. The Digital Resource Commons' federated search was implemented as a metadata-based search. We will present a general comparison between metadata and full-text searching, highlighting the advantages and disadvantages of each method. A discussion of metadata uniformity and quality concerns will be presented in the context of federated searching. Particular problems encountered with our metadata will be described, with lessons learned and suggestions for resolution. Operational and maintenance concerns of this system will be discussed, including the metadata harvesting schedule, and the need to flush and rebuild indexes when the metadata schema changes. Future ideas for the DRC's federated search feature will be explored, including an implementation of faceted searching using SOLR, harvesting of non-DSpace repositories, such as CONTENTdm and Fedora, and, finally, the possibility of discarding the current model in favor of an OAI-ORE based system, developed for DSpace at Texas Digital Library, that allows for the possibility of full-text federated searching.	en_US
dc.description.sponsorship	OhioLINK	en_US
dc.identifier.uri	http://hdl.handle.net/1853/28507
dc.publisher	Georgia Institute of Technology	en_US
dc.relation.ispartofseries	OR09. DSpace User Group Presentations	en_US
dc.subject	OAI-PMH	en_US
dc.subject	DSpace	en_US
dc.subject	Federated searching	en_US
dc.subject	Digital Resource Commons	en_US
dc.subject	OhioLINK	en_US
dc.subject	Metadata	en_US
dc.subject	PKP Harvester	en_US
dc.title	Unicorn: The myth of federated search realized simply. Unifying DSpace repositories with the PKP Harvester tool	en_US
dc.title.alternative	Unifying DSpace repositories with the PKP Harvester tool
dc.type	Text
dc.type	Moving Image
dc.type.genre	Proceedings
dc.type.genre	Presentation
dspace.entity.type	Publication
local.contributor.corporatename	Library
local.relation.ispartofseries	Open Repositories Conference
relation.isOrgUnitOfPublication	bf0ff3d1-48ff-4cf4-baa3-4c783958e37a
relation.isSeriesOfPublication	91d86e5c-4993-46f1-b27e-8195cabcdede