Gateways, Clearinghouses and Portals in the Social Sciences: Classsifications and Schemes for the Web
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This document discusses different types of classifications and schemes used to organize information on gateways and portals in the social sciences. It describes gateways and thematic portals that are centered around a specific subject and provide information, references, and user services. It also discusses how information on these sites is organized, often using a hierarchical structure and classification system to allow users to browse and search the collection. The document notes that classifications are designed to provide thematic access for users but that there are challenges due to different interfaces, classifications, and search performances across gateways.
Gateways, Clearinghouses and Portals in the Social Sciences: Classsifications and Schemes for the Web
- 1. Gateways, Clearinghouses and Portals in the Social Sciences: classifications and schemes for the web Dr. Jesús Tramullas Dpto. CC. Documentación /Univ. de Zaragoza http://tramullas.com
- 2. Gateways and Tematic Portals Centered in an especific subject Activity and uses are oriented to a user community Offering: Own information Referenced information User services are developed around the information content
- 3. Information Organization A collection is organized Collection is focused with criteria that the users can understand Adopts the “bibliography metaphor” The first approach is hierarchical The user has the “search” and “browse” options to access to the collection content
- 4. Gateway as digital information space A gateway is a digital information space It’s a complex context, where interact information management, information design, human-computer interaction, cognitive psycology... User is the King: gateways must be constructed thinking in user objectives; this way, classifications are for the user
- 5. Classification Creation or adoption of controlled vocabularies / classification systems Designed for offer thematic access Systems and schemes thought by humans Systems and schemes applied by humans Tendency to automatic classification
- 6. Classifications approaches Universal classifications: DDC, UDC National general classifications Specific classifications for a community or a particular subject Particular classifications The uses of classification schemes have advantages and disadvantages
- 7. Complements to classification Indexing: using descriptors, keywords, subject headings... Works like an information access tool, same way as classification schemes Offers a specific description of the individual document Thesaurus: offers hierarchical presentation and search functions
- 8. New approaches Automatic classification Ontologies Semantic web In this moment classifications, subject headings/keywords and thesaurus are applied; ontologies and semantic web are still experimental
- 9. User behavior Tends to desintermediation User has a clear objective, with proper definition and classification Must learn the gateway criteria for organization, classification, exploration and retrieval Must adequate its cognitive scheme to the cognitive scheme subyacent to the gateway applied classification
- 10. User problems Heterogeneus interfaces Different classifications, in the same subject areas Dificulties to combine classifications with descriptors/keywords Different performances of the gateways search systems Different levels of description and evaluation of referred resources
- 11. Gateways and classifications DDC RENARDUS Thesaurus Biz/Ed Own classification GESIS-SocioGuide Nederlandse Basisclassificatie DUTCHESS DEWEY BUBL LCC, LCSH INFOMINE By subject editors DMOZ LCSH LII UDC, HASSET, IBBS, CareData SOSIG