Martin Moyle Digital Curation Manager UCL Library Services, UK

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Presentation transcript:

MERLIN (Metadata Enrichment for Libraries in a London Institutional Network): short overview Martin Moyle Digital Curation Manager UCL Library Services, UK m.moyle@ucl.ac.uk MERLIN Steering Group 1, 26 January 2010

Background JISC funded (Information Environment 09-11, Resource Discovery strand) Partners: UCL, ULCC, University of Nottingham Aims use off-the-shelf text-mining tools to enrich repository functionality refine this work with user feedback and roll out 18 months (April 2009 – September 2010)

Objectives Integrate NacTEM tools in the SHERPA-LEAP consortial repository ‘LASSO’, deriving weighted keywords from source repositories. Modify LASSO to expose these mined terms for discovery. Work with users to ensure usefulness and user-friendliness of these modifications. Experiment with thesauri: can mined terms be used to support/enhance structured navigation? Roll out a MERLIN tool for plugging in to IRs. Full project evaluation. Dissemination.

Text-mining for repositories: why? Improve discoverability of repository content Cost-effective description – cheaper than subject cataloguing… Uses researchers' own vocabularies Supports interdisciplinarity Adds selectivity and weight to full text indexing May also be used as the basis for structured navigation Examples: how MERLIN outputs might look…

LASSO: basic search

LASSO: with terms mined from full texts Terms are weighted by frequency. Use slider to see more/fewer terms Select a mined term...

...new set of records associated with that term is retrieved

Progress / next steps Done Tasks between now and Easter Initial text mining Integration of mined dataset with LASSO data LASSO customisation under way Tasks between now and Easter User evaluation of LASSO; iterative improvement Refinements to text mining; full integration into LASSO workflow Begin thesaurus work...

Thesaurus interaction - example