KOS Systems in the New Information Environment

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KOS Systems in the New Information Environment

• Subject Gateways, Digital Libraries, Portals,
  Institutional Repositories and Open Archives

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Knowledge information organisation systems

• Classification schemes
• Subject headings
• Search thesauri
• Indexing thesauri
• Taxonomies (organisational terminologies)
• Topic maps (graphical)
• Ontologies (Protégé)

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New knowledge organisation environments

• Subject gateways
• Digital libraries
• Portals
• Institutional repositories
• Open archives

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Thesauri and classification schemes in the new
environment

• Thesauri and classification schemes are used for
  indexing and classifying the selected web
  resources to ensure consistent description
  (indexing) and discovery (retrieval)
• They provide search, browse and navigation
  facilities based on their semantic and
  terminological structures

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What is a subject gateway?

• Internet-services which apply a rich set of
  quality measures to support systematic resource
  discovery.
• They provide links to resources (documents,
  objects, sites or services) accessible via the
  Internet.
• The resources are usually hand-picked by subject
  experts, librarians and information professionals
• A main goal is to provide a high quality of
  subject access through indexing resources using
  controlled vocabularies and by offering a deep
  classification structure for advanced searching
  and browsing.

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Types of subject gateways

• Subject gateways can be developed based on one or
  more of the following criteria
• Subject coverage ( Math or social sciences)
• Geographical coverage (regional, national,
  international)
• Language (monolingual, bilingual, multilingual)
• Type of resources (local resources, national
  resources)

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Examples of subject gateways

• SOSIG (HASSET, CAB)
• OMNI (MeSH, RCN, LC, CAB)
• VetGate (CAB)
• AGRIFOR (CAB)
• MathGuide (Mathematics subject classification)
• PSIgate (Physical Sciences Information Gateway)
  (Physics and Astronomy Classification Scheme)

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What is a portal?

• An Internet service that provides a personalised,
  customized single point of access to a range of
  heterogeneous network services, local and remote,
  structured and unstructured.
• Portals bring together and presents information,
  applications and resources from a number of
  different sources.

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Brief history of portals

• Originally Yahoo! and Excite, which aggregated
  news and information and offered other
  enticements, designed to keep people at the site
  and to draw repeat visitors, such as free e-mail
  and calendars.
• This development led to the commonly accepted
  concept of a portal as any Web site that offers a
  community of users the comfort of a home base, a
  single entry point to resources from a range of
  other Web places.

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Portal features

• Browsable hierarchical directories
• Organising, storing, printing, e-mailing or
  downloading records
• Personalise the site according to users
  preferences
• Creation of User Profile (s) of interests
• Personal information storage space
• Results presentation and display format
• Deadline alerts (for students and researchers)
• Access or update reading lists
• Announcements
• Diary/Planner
• Calendar/ scheduling

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Portal features (cont.)

• Links to related Web sites
• Chat reference
• Search profiles (search history)
• A tailored e-mail alerting service.
• A range of additional services, such as an
  aggregated newsfeed, conferences information,
  etc.

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Examples of portals

• Aboriginal Canada Portal
• Government of Canada Portal

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Digital library definition

• a digital library is an organization that
  provides the resources, including the specialized
  staff, to select, structure, offer intellectual
  access to, interpret, distribute, preserve the
  integrity of, and ensure the persistence over
  time of collections of digital works so that they
  are readily and economically available for use by
  a defined community or set of communities.
• Digital Library Federation

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Digital library features

• A variety of digital information resources from
  text to image to sound and movies
• Digital library may be distributed around the
  globe
• Several users can make use of the same resource
  at the same time
• They have advanced search, browse and navigation
  features
• They have both free and subscription-based
  resources

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Knowledge organization in digital libraries

• Like traditional physical libraries, digital
  libraries make use of knowledge organization
  systems such as thesauri, classification schemes
  and subject headings
• Knowledge organization tools are used for
  cataloguing, indexing, searching, browsing and
  retrieval

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Digital libraries

• The Canadian Architect and Builder
• Glasgow Digital Library (LCSH)
• Our future our past (AAT)
• Digital Teaching Resources Library for Biology
  (Locally developed taxonomy)

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Institutional repositories

• A digital collection of a an organization's
  intellectual output and institutional
  documentation.
• They usually include
• preprints
• postprints
• digital versions of theses and dissertations,
• administrative documents, course notes, or
  learning objects.

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Examples of IR

• Strathprints The University of Strathclyde
  Institutional Repository
• University of Calgary Institutional Repository
• Loughborough University Institutional Repository

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Open archives

• Enhance access to e-print archives, in order to
  increase the availability of scholarly
  communication
• Computing Research Repository
• E-LIS E-prints in Library and Information
  Science

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