high-level thesaurus (hilt) project: recent work
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High-Level Thesaurus (HILT) project: Recent work. IFLA 2007 Dewey Translators Meeting 21 Aug 2007, Durban. The Problem. Spade: Shovel? Digging tool? Playing cards? Shaufel? La Pelle? - PowerPoint PPT PresentationTRANSCRIPT
High-Level Thesaurus (HILT) project:
Recent work
IFLA 2007Dewey Translators Meeting
21 Aug 2007, Durban
The Problem
Spade: Shovel? Digging tool? Playing cards?Shaufel? La Pelle?
HILT aims to facilitate cross-searching distributed information services by subject in a multi-scheme, multi-lingual “common information environment”Archives, Libraries, Museums, Online
Requirements
Success requires distributed collaborative action at local, national, and international level
Focus of HILT: to identify a generic standards-based approach allowing widespread participation
HILT: Background
Funded by Joint Information Systems Committee, and supported by OCLC
To provide subject interoperability in a multi-scheme environment via inter-scheme mappingIdeally by identifying a generic approach that can
be developed through distributed collaborative action …
Mapping
DDC used as a semantic translator between different Anglophone subject terminologiesAvailability of DDC mappings to captions, relative
index and LCSHTested with other terminologiesDDC also used to classify collections
“Subject landscaping” gives best places (catalogues) to search for items
(Item > Collection) = (Specific > General) = Truncation of DDC notation
Possibilities
Recent development of a distributed machine-to-machine architectureSearch/Retrieve over Web; Simple Knowledge
Organization SystemAllows other, non-DDC mappings to be used
within the HILT modelEncouraging the wider participation required to
facilitate global subject interoperabilityA model architecture for collaboration whatever
the preferred approach to interoperability
• Can see: description (top)• Top levels browse hierarchy• Search box – common - teeth
• System responds by finding term• Identifying possible DDC captions• Returning to user as shown• User then chooses best fit for topic• Number 3, dental diseases
• DDC no. For Dental diseases 614.5996, Screen shows using for 3 things• 1. Successive truncation used to find these relevant services at DDC 610• 2. Identifying the subject schemes they use (MeSH in these two instances)• 3. Determining best term in scheme via mapping to DDC 614.5996 (dentition)
• Finally, dentition used to search last of these services; send back relevant hits
6 functions based on use cases
Get_DDC_records Returns DDC captions and numbers related to an input term; list
for user to choose best fit caption/no.
Get_collections Returns collections classified under a specified DDC number or
its stem, including subject scheme used
Get_non_DDC_records Returns mappings to other schemes from a specified
(untruncated) DDC number
6 functions based on use cases
Get_explainInformation about the service
Get_all_recordsCombines the functions of get_DDC_records and
get_non_DDC_records Get_filtered_set
Allows specified fields from specific terminologies or combinations of terminologies to be searched – enabling functionality beyond phase II to be added
Further information
Website (all HILT phases): http://hilt.cdlr.strath.ac.uk/
E-mails: [email protected] [email protected]
www.slainte.org.uk/edugit/index.htm