Making sense of the data jumble Trinity College Library Dublin’s Discovery Solution Experience Arlene Healy & Charles Montague Digital Systems and Services Date 30/03/15

Trinity College Dublin, The University of Dublin Resource Discovery Arrives in TCD Implementation of Encore Synergy (Innovative) – August 2011

Trinity College Dublin, The University of Dublin Encore + EDS = Encore Duet Library Upgrades to Encore Duet in August 2014

Trinity College Dublin, The University of Dublin What is Encore Duet? – A discovery solution that combines Ebsco Discovery Solution content and metadata with the library’s local collections. – Encore continues to be the discovery interface, ensuring:  Display of ‘real time’ circulation status  Local catalogue functionality such as Item Request and Automated Stack Request – Importance of accuracy of link resolver configuration – Mobile Version

Trinity College Dublin, The University of Dublin – Single Search Box – Optimises the discovery and utilisation of library resources – Provides a starting point for the novice user Introduces a variety of information sources much earlier – Information Literacy Benefits – Workflow Efficiencies E-book Marc records uploading & administration

Trinity College Dublin, The University of Dublin The Metadata Jumble – Technically feasible to index hundreds of thousands of records from multiple sources through Lucene in real time – Difficult to order records in a way that makes sense for end user – Reliance on publisher provided metadata to power search and retrieval and faceted navigation – Quality and consistency of metadata is an issue  Dependencies for deduplication – Reliance on use based and social factors (patrons allowed to promote item) to improve relevancy ranking Relevance should be neutral relative to content source or publisher until limiters/contexts are applied

Trinity College Dublin, The University of Dublin Relevancy Ranking Etc. Keyword Matching Title Phrase Matching Full Text Phrase Matching Record Phrase Matching Title Default Configuration Results from EDS and the Library Catalogue are interfiled Etc. Phrase Matching Full Text Phrase Matching Record Keyword Matching Title Phrase Matching Title TCD Custom Configuration

Trinity College Dublin, The University of Dublin  Adjust the item “weighting” based on the number of items added to a record - i.e. the more copies of a book the higher up the results list it is ranked  “promote” the relevance of a record  E.g. Journal title records; database records Learning Aspect Balancing Act

Trinity College Dublin, The University of Dublin Getting the Balance right

Trinity College Dublin, The University of Dublin Indexing – Is content indexed at the citation or full text level? – EDS – majority is full text searching (phrase matching) – Local catalogue data – Marc fields only; no full text searching Ranking adjustments necessary to ensure full text searching (article results) do not dominate the results list

Trinity College Dublin, The University of Dublin Facet Rationalisation or Relabelling?

Trinity College Dublin, The University of Dublin It’s a Metadata Quality Issue

Trinity College Dublin, The University of Dublin When is a book not a book?

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