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ADVANCES IN LIBRARY DISCOVERY SERVICES The State of the Art in 2011 Marshall Breeding Director for Innovative Technology and Research Vanderbilt University Library Founder and Publisher, Library Technology Guides http://www.librarytechnology.org/ http://twitter.com/mbreeding Internet Librarian 2011 May 20, 2011
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Abstract Marshall Breeding will provide a look in to the next generation of library catalogs. The initial phase of next-generation catalogs extended beyond the capability of the ILS online catalog module with relevancy-based search, faceted navigation, and extended scope. The current wave of discovery systems extends search to Web-scale capacity, addressing library subscriptions of scholarly content at the article level in addition to local physical and digital collections.
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Evolution of library collection discovery tools Bound handwritten catalogs Card Catalogs Library online catalogs – OPACs Next-Gen Catalogs / Discovery interfaces Social Discovery Web-scale discovery services Comprehensive presentation layer services
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Bound Catalog National Library of Colombia
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Card Catalog National Library of Argentina
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Card Catalog University of Kansas Library
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Online Card Catalog Salem International University
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Computerized card catalog
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Web-based online catalog
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AquaBrowser
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Summon
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The ever-expanding data model
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Online Catalog Search: Search Results ILS Data
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Discovery Interface Search: Digital Collections ProQuest EBSCOhost … MLA Bibliography ABC-CLIO Search Results Real-time query and responses ILS Data Local Index MetaSearch Engine
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Web-scale Discovery Search: Digital Collections ProQuest EBSCOhost … MLA Bibliography HathiTrust Search Results Pre-built harvesting and indexing Consolidated Index ILS Data
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Legacy ILS Model / Extended Discovery ` API Layer LMS Consolidated index Search Engine Discovery Service Search: Digital Collections ProQuest EBSCOhost … JSTOR Other Resources
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Web-scale Search + Federated Search Search: Digital Collections ProQuest … MLA Bibliography ABC-CLIO Search Results Pre-built harvesting and indexing Consolidated Index ILS Data Fed Search Non- harvestable Resources Non- harvestable Resources Interim model to deal with resources not possible to harvest into consolidated index
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Encore Synergy Search: Digital Collections ProQuest … Local Index ILS Data Web Services Local Index Results Remote Search Results EBSCOhost … MLA Bibliography ABC-CLIO
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Encore Synergy
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Social Discovery Search: Digital Collections Web site data … User Contributed Content Search Results Local Index ILS Data
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Unified Search Model Search: Digital Collections Web site data … User Contributed Content Search Results Discovery Index ILS Data Consolidated Indexes of Articles
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Library Web Presence Integrated Library System Library Web site Subject Guides Article, Databases, E-Book collections Public Interfaces : Presentation Layer
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Consolidated index Search Engine Discovery Service Search: Digital Coll ProQuest EBSCO … JSTOR Other Resources New Library Management Model ` API Layer Library Management System Learning Management Enterprise Resource Planning Stock Management Self-Check / Automated Return Authentication Service Smart Cad / Payment systems
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Discovery from Local to Web-scale Initial products focused on technology AquaBrowser, Endeca, Primo, Encore, VuFind Mostly locally-installed software Current phase focused on pre-populated indexes that aim to deliver Web-scale discovery Summon (Serials Solutions) WorldCat Local (OCLC) EBSCO Discovery Service (EBSCO) Primo Central Encore with Article Integration
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Social Discovery Builds on modernized library catalog interfaces Strong emphasis on Web 2.0 concepts Users invited to contribute reviews, ratings, preferences, reading lists, etc. User-supplied data becomes part of the discovery process Users help each other to find interesting library materials Example: Leverage use data for a recommendation service of scholarly content based on link resolver data: Ex Libris bX service
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Differentiation in Discovery Products increasingly specialized between public and academic libraries Public libraries: emphasis on engagement with physical collection Academic libraries: concern for discovery of heterogeneous material types, especially books + articles + digital objects
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Developments in Discovery 2011
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Continued emphasis on Index-based search Serials Solutions: Summon Ex Libris: Primo Central OCLC: WorldCat Local EBSCO: EBSCO Discovery Service [Innovative: Encore Synergy]
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Adoption trends Great interest by academic libraries in Summon, EDS, Primo Central, WorldCat Local Public Libraries: BiblioCommons adopted by major municipal libraries and consortia Vendor specific discovery: LS2 PAC, Enterprise, Encore, Axiel Arena, Infor Iguana AquaBrowser currently loosing ground New SaaS version from Serials Solutions
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Association of Research Libraries www.librarytechnology.org/arl-discovery.pl
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Pre-populated discovery indexes New-generation interface Harvested local content ILS metadata Institutional repositories, ETDs, Digital Collection platforms Vendor-supplied indexes of library content E-journals, databases, e-books Full-text and metadata corresponding to e-content subscriptions Book collections beyond local library collections
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The Battle of the Mega Index Working toward comprehensive representation of potential library content: ~1 billion items Well within the thresholds of the capacity of modern search engine technologies Apache SOLR used by most
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Building the Index: Business strategies Deals with publishers and providers to expose metadata and full-text for discovery Interesting relationship among discovery service providers Publishing business: Serials Solutions (ProQuest), EBSCO Technology business: Ex Libris, OCLC (?) Serials Solutions: ProQuest content + growing array of third party content EDS: EBSCOhost content + growing array of third party content OCLC & Ex Libris: Indexes built entirely out of third party content
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The Challenge for Open Source Open source discovery interfaces: VuFind (Villanova University) Blacklight (University of Virginia) No open content mega index Discovery has shifted from primarily a technology product to a content-driven product
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Discovery Services and Publishers Discovery services based on a central index depend on publishers and other content providers to cooperate in providing access to metadata or full text data Not a publishing model – Users access content through publisher site
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What’s in the Index? Important to understand what resources from a libraries collection components are represented or not in their discovery service Point of differentiation in selecting a discovery service Point of differentiation in selecting content
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Open Discovery Initiative Project underway to address issues related to information providers, discovery service providers, and libraries Protocols for transfer of content Transparency of what is transferred and indexed Rights or restrictions on how discovery services use content Initial meeting at ALA Annual Proposal under consideration by NISO “Proposed New Work Item: Standards and Best Practices for Library Discovery Services Based on Indexed Search”
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Summon: Unilateral transparency
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Citations / Metadata > Full Text Citations or structured metadata provide key data to power search & retrieval and faceted navigation Indexing full-text of content amplifies access Important to understand depth indexing Currency, dates covered, full-text or citation Many other factors
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Discovery w/Full-text Book content
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HathiTrust
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HathiTrust: HathiTrust will expose SOLR index to discovery providers (Summon, Primo Central, WorldCat Local, EDS) Introduces full-text book search into discovery services A total of 8.4 million volumes 4.6 million books 200,000 serial titles 3 billion pages of text
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Challenge for Relevancy Technically feasible to index hundreds of millions or billions of records through Lucene or SOLR Difficult to order records in ways that make sense Many fairly equivalent candidates returned for any given query Must rely on use-based and social factors to improve relevancy rankings
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From Discovery to Management Serials Solutions: Summon > Web-scale management Solution OCLC: WorldCat Local > Web-scale management Solution Ex Libris: Primo > Alma
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Re-coupled Discovery? Decoupled interfaces emerged from broken online catalogs Poor interfaces, inadequate scope Inefficient integration between automation and discovery platforms New wave of more tightly integrated suites: Alma > Primo Web-scale Management Services > WorldCat Local Serials Solutions Web-scale Management Solution > Summon Still possible to decouple, but more effort, worse results
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Integration with e-book lending services Current environment reflects weak integration: Library catalog populated with MARC records representing e-book collection Library users linked into e-book vendor site Uses ILS patron authentication for patron validation and authorization Need to move to deeper integration with more seamless user experience
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Device Agnostic
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Next-Gen Library Catalogs Marshall Breeding Neal-Schuman Publishers March 2010 Volume 1 of The Tech Set
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