HILT: Past, present and future

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HILT Past, present and future

• HILT Steering Group, October, 2006

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HILT Past, present and future

• Brief background notes
• Phase III to date
• Functions and use cases
• Initial thoughts on a possible
• baseline service

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HILT Brief background notes
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HILT Background and Overview

• Funded JISC Support OCLC Collaborative
• Aim provide subject interoperability in a
  multi-
• scheme environment via inter-scheme mapping
• Ideally by identifying a generic approach, able
  to be
• built up through distributed collaborative
  action
• Originally intellectual mapping, but now see
  how
• model can include range of interoperability
  services
• Phase I, II, M2M FS Now Phase III (main focus)

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HILT Phase III Nov 05 Jan 07

• Aim an M2M pilot that
• Offers terminology services via SRW but is open
  to later extension to ( Z39.50 SRU)
• Uses SKOS-Core as the mark-up for sending out
  terminology sets and classification data but
  open to later extension to other formats (MARC
  Zthes)
• Is open to the possibility of a distributed
  approach to building a full service up via wide
  collaboration
• Extends the user-accessible (non-M2M) Phase II
  pilot beyond inter-scheme mapping

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HILT Phase III to date
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(1) Future requirements (2)
Pre-refinement evaluation (3) Post-refinement
evaluation
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Outputs to date

• Project Plan Consortium Agreement
• Various required reports to JISC or of meetings
  
• Ongoing Dissemination website upgrade
• Requirements Document (still a work in progress)
• SKOS preparatory work
• Mapping work Initial mapping types evaluation
• Outline plan for a future baseline service
• Working (if unfinished) M2M pilot based on SRW
• server and clients, SOAP, SKOS wrapped KOS

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Remaining work

• Complete pilot SRW clients, SRW server,
• SOAP server and functions, mappings, database
  
• Evaluation of functioning pilot
• Refinement based on results
• Final evaluation
• Complete requirements document, including
• future requirements
• Final Report Ongoing Dissemination Website
• Bid for future baseline service (possibly soon)

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HILT Functions and use cases
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The Phase III pilot in outline

• GoGeo Based Service-specific SRW client
• HILT Client Phase II plus additional facilities
• A baseline SRW open source client that includes
  
• the DDC collections-finding code (HILT SRW)
• More schemes DDC, LCSH, IPSV, AAT, GCMD
• HASSET, MeSH, NMR, JACS, UNESCO (SKOS)
• Additional but still illustrative - mappings
• Detailed data on terms in schemes BT, NT,RT,
• synonyms, scope note etc.
• Functionality Support M2M FS Use Cases plus

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Six Functions UC1 Emulate Phase II

• 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

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UC1 (1 step) UC2/3 (2 functions)

• Get_explain
• Get_all_records
• Combines the functions of get_DDC_records and
  get_non_DDC_records seen above
• UC1 in 1 step
• Use cases 2/3 Provide enriched set of search
• terms so users can use (selectively or
  otherwise) to
• improve searches of local service database
• includes term expansion, singular/plural
  mappings,
• spelling/typos correction (Google did you
  mean?)
• Get_all_records or

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UC2/3 (2 functions) UC4 UC5

• Get_filtered_set
• Allows specified fields from specific
  terminologies or combinations of terminologies to
  be searched enabling functionality beyond phase
  II to be added
• UC4 Scheme hierarchy browse in no hits
• from HILT or user/service request situation
• UC 5 Improved precision use cases, either
• via browsing scheme hierarchies,
  disambiguation
• or specific requests for narrower/related
  terms
• Other UCs plus Get_filtered_set

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HILT A baseline service?
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Future Possibility A Baseline Service?

• Possible generic collaborative distributed
  approach
• based on clients, distributed
  interoperability/KOS
• services categorised in collections/services
  database
• If clients can generate scheme hierarchies
  initial but
• extendable service based on top level
  mappings and
• hierarchy based collection retrieval looks
  feasible
• Deeper levels of mapping as and when possible
• Distributed approach could allow faster progress
  on
• scheme expansion and deeper mapping
• Local KOS services would serve local needs

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• Phase II emulation
• Client sends users
• Subject term to HILT
• HILT sends captions
• User selects caption
• and DDC number
• Client queries CS
• database for
• collections/schemes
• User picks collection
• and scheme
• Client gets scheme
• data from HILT
• Client builds scheme
• hierarchy to collection
• using top level DDC
• mapping to take user
• in at an appropriate
• point in hierarchy

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• Local hits first version
• User finds/marks good
• hits in local service
• Client uses HILT to
• get relevant DDC no.
• Client queries CS
• database for
• collections/schemes
• User picks collection
• and scheme
• Client gets scheme
• data from HILT
• Client builds scheme
• hierarchy to collection
• using top level DDC
• mapping to take user
• in at an appropriate
• point in hierarchy
• User navigates

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• Other variations
• Client has local list of
• of best collections,
• uses CS database for
• connection details and
• schemes, and HILT to
• get data to build
• hierarchies for users
• Client uses HILT DDC
• mappings and CS
• database to identify
• collections, uses HILT
• to build hierarchies for
• schemes in HILT, but
• CS databases (SLIC)
• to find other inter-
• operability/ terminology
• services for schemes

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A Baseline Service?

• Basis of HILT service fourfold
• Generic and adaptable open source client
• HILT mapping and terminologies data
• IESR (or similar) with scope extended to cover
  t-services
• Other terminology/interop. services if and when
  they arise
• What other terminology or interoperability
  services?
• OCLC DDC LCSH mappings?
• Red-Light-Green and similar?
• Automated mapping services?
• New services emerging from the current JISC call?

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Further Information

• Website (all HILT phases)
• http//hilt.cdlr.strath.ac.uk/
• E-mails
• d.m.nicholson_at_strath.ac.uk
• george.macgregor_at_strath.ac.uk
• e.mcculloch_at_strath.ac.uk
• HILT (SOAP) Demonstrator
• http//hiltm2m.cdlr.strath.ac.uk/hiltm2m/hiltsoapc
  lient.php