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Rethinking the library catalogue: making search work for the library user Sally Chambers The European Library

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Presentation on theme: "Rethinking the library catalogue: making search work for the library user Sally Chambers The European Library"— Presentation transcript:

1 Rethinking the library catalogue: making search work for the library user Sally Chambers The European Library sally.chambers@kb.nl http://twitter.com/schambers3

2 Challenges for library search  To survive the future, a library catalogue has to offer the same user experience as a library user’s favourite search engine  How can libraries harness web technologies to provide a search engine like experience for their users?  I hope to outline the challenges faced by librarians to transform the traditional library catalogue into a search-engine like user experience

3 Introducing to The European Library Unique access point for the catalogues and digital collections of the 48 National Libraries of Europe

4 Introducing to The European Library www.theeuropeanlibrary.org

5 Library I.R. protocols a client/server-based protocol for searching and retrieving information from remote databases http://www.loc.gov/z3950/agency/ http://www.loc.gov/standards/sru/ SRU is a standard XML-focused search protocol for Internet search queries, utilizing CQL (Contextual Query Language), a standard syntax for representing queries

6 Library federated search

7 The difficulties of federated search

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9 Results list per country (1)

10 Results list per country (2)

11 Issues with federated search  Speed of return of results not up to current user expectations  Search is dependent on individual services outside the library’s control (‘not responding’)  Results are returned independently and therefore difficult to integrate into a single result list  Ranking of results is not core functionality of federated search protocols

12 Towards integrated search The Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) is a low-barrier mechanism for repository interoperability. Data Providers are repositories that expose structured metadata via OAI-PMH. Service Providers then make OAI-PMH service requests to harvest that metadata. OAI-PMH is a set of six verbs or services that are invoked within HTTP. http://www.openarchives.org/pmh/

13 Metadata harvesting protocol http://193.200.14.178:8080/repox/OAIHandler?verb =ListRecords&set=Albymika_0001&metadataPrefix =oai_dc

14 Towards integrated search

15 Integrated results list

16  Metadata is harvested and indexed in advance – no need to rely on real time federated search  Availability of search is determined by the library, without needing to rely on remote servers  As the metadata is in one place it is easier to present an integrated result list  Ranking search results becomes possible... but how?

17 Relevancy ranking in libraries?  Users ‘used to good relevancy ranking’, e.g. in web search engines and can’t understand why user experience is generally inferior in libraries  Ranking needed for results list which contain large amounts of data (for libraries) - estimated 180 million records in The European Library - but not web-scale  Dealing with a diversity of library materials  In many different languages see: Lewandowski (2009)

18 Diversity of library resources  Metadata (catalogue) records (MARC format) - some link to digital objects, some not  Metadata records (often Dublin Core format) - linking to digital objects  Increasing amounts of full-text content with minimal metadata  In other types of libraries, e-journals, institutional repositories etc.  A mix of structured and un-structured data

19 Typical record in MARC format www.loc.gov/marc/

20 Full-text search www.ifla.org/publications/functional-requirements-for-bibliographic-records

21 Full-text search

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25 Faceted search examples

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31 Ability to sort the results

32 Faceted search examples

33 Drop down ‘pick-list’

34 Faceted search examples

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36 Visual search

37 Faceted search

38 Facets and ‘dirty’ data

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42 A conceptual model for the bibliographic universe www.ifla.org/publications/functional-requirements-for-bibliographic-records http:// www.loc.gov/cds/downloads/FRBR.PDF Functional Requirements for Bibliographic Records—or FRBR, sometimes pronounced /ˈfɜrbər/—is a conceptual entity-relationship model developed by the International Federation of Library Associations and Institutions (IFLA) that relates user tasks of retrieval and access in online library catalogues and bibliographic databases from a user’s perspective/ˈfɜrbər/entity-relationship modelInternational Federation of Library Associations and Institutions http:// en.wikipedia.org/wiki/Functional_Requirements_for_Bibliographic_Records

43 FRBR essentials

44 Refining by clustering

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46 Libraries and linked data http://id.loc.gov http://viaf.org/

47 Mobile search …and all of this via a mobile device

48 References Lewandowski, D (2009) Ranking library materials (Pre-print version) www.bui.haw-hamburg.de/fileadmin/user_upload/lewandowski/doc/LHT2009_preprint.pdf Karen G. Schneider (2006) How OPACS suck, ALA TechSource How OPACs Suck, Part 1: Relevance Rank (Or the Lack of It) www.alatechsource.org/blog/2006/03/how-opacs-suck-part-1-relevance-rank-or-the-lack-of-it.html How OPACs Suck, Part 2: The Checklist of Shame www.alatechsource.org/blog/2006/04/how-opacs-suck-part-2-the-checklist-of-shame.html How OPACs Suck, Part 3: The Big Picture www.alatechsource.org/blog/2006/05/how-opacs-suck-part-3-the-big-picture.html

49 Thank you! Sally Chambers The European Library sally.chambers@kb.nl http://twitter.com/schambers3


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