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Integrating CERIF entities in a multidisciplinary e-infrastructure for environmental research data. Enrico Boldrini a , Daniela Luzi b , Stefano Nativi a , Fabrizio Pecoraro b a Institute of Atmospheric Pollution Research, National Research Council (CNR-IIA), Sesto Fiorentino , Italy

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integrating cerif entities in a multidisciplinary e infrastructure for environmental research data

Integrating CERIF entities in a multidisciplinary e-infrastructure for environmental research data

Enrico Boldrinia, Daniela Luzib,

Stefano Nativia, Fabrizio Pecorarob

aInstitute of Atmospheric Pollution Research, National Research Council (CNR-IIA), Sesto Fiorentino, Italy

bInstitute for Research on Population and Social Policies, National Research Council (CNR-IRPPS), Rome, Italy *

CRIS2014 - Rome, 13-15 May 2014

index
Index
  • Aims
  • Background
  • Two-way Crosswalk
    • From ISO 19115 INSPIRE profile to CERIF
    • From CERIF to ISO 19115
  • Proposal of CERIF extension
  • Proposal of a CERIF profile in ISO 19115
  • Implementation in a brokering framework
  • Discussion
slide3

Aim

Proposal of different solutions to integrate research context information with environmental datasets

Two way crosswalk:

From ISO to CERIF:

Providing a CERIF guideline for the description of datasets according to the INSPIRE profile ISO 19115

From CERIF to ISO:

Proposing an ISO profile for contextual research information on the basis of CERIF concepts

Extension of the Brokering approach used in environmental

e-infrastructures with contextual research information based on CERIF

iso 19115 geographical information metadata
ISO 19115Geographical Information metadata
  • Part of geographical information suite of standards (19100 series)
  • Description of geographic information and services: identification, extent, quality, spatial and temporal schema, spatial reference and distribution of digital geographic data
  • more than 400 metadata elements
  • Provision of rules for valid metadata extensions
  • ISPIRE Metadata Implementing Rules
  • Eu Directive to implement ISO 19115 to create a European Union spatial data infrastructure
  • Core set of mandatory and optional metadata and related constraints

INSPIRE profile

ISO 19115

cerif
CERIF
  • Comprehensive conceptual model on research information and related process suitable for different purposes: management, scientific exchange, evaluation …
  • E-R based, flexible model based on:
    • Base entities
    • Semantic layer
    • Multiple relationships
  • Constantly maintained by the euroCRIS community

CERIF version 1.6

challenges
Challenges

Different domains

scopes

structures

semantics

Funding

Equipment

Facility

ExpertiseAndSkills

Service

Qualification

Prize

ElectronicAddresse

CV

PostalAddress

Citation

Metrics

Indicator

Measurement

Country

Event

Language

Currency

slide7

Mapping from INSPIRE ISO 19115 profile to CERIF

  • StraightforwardINSPIRE elements have semantically correspondent elements in the CERIF data model
  • Inferential mapping both INSPIRE and CERIF can refer to a data dictionary/vocabulary that contains semantically shared terms;
  • Convention  the CERIF metadata elements can be accommodated to express some mandatory INSPIRE elements by convention of the parties exposing their metadata
slide8

Straightforward mapping

  • Semantically correspondent notation with CERIF entity cfResProd and some related elements
  • Automatic discovery and interpretation of datasets exposed in RISs using CERIF model
slide9

Inferential mapping

  • Information can be inferred using:
  • CERIF semantic layer (cfClassId …) and link entities
  • ISO CodeList dictionary
  • Important to express roles and topics univocally
slide10

Convention

  • Mapping of information on:
  • datasetqualityandlineage,
  • temporalreference,
  • language
slide11

A proposal of CERIF extension

  • New entities related to research products expressing:
  • condition of access and use,
  • limitation on public access
  • dataset language
  • dataset character codes
  • + optional ISO information related to the metadata used
slide12

Mapping from CERIF to ISO 19115 profile

  • Proposal of extensions according to ISO methodology based on CERIF :
  • project entity
  • publications linked to dataset
  • + expansion of ISO concepts providing more information on Organisations and Persons
slide13

GI-cat discovery broker

GI-cat enables scientific data search across different, heterogeneous data sources.

Results are profiled according to the desired model.

  • GI-cat broker technology powers different projects and initiatives:
    • Italian Antactic Data Center (IADC)
    • Italian Special project NextData
    • CNR GIIDA
    • ISPRA catalog of catalogs
    • AfroMaison
    • Global Earth Observation System of Systems (GEOSS)
slide14

Implementation results - GI-cat extensions for CERIF

CERIF Docs

brokers CERIF datasets published according to the CERIF XML Schema

exposes the resources brokered returning documents which are conform to the CERIF XML Schema.

slide15

Test case #1 Publishing CERIF products for INSPIRE

CERIF Docs

CERIF Documents stored in a XML repository are brokered by GI-cat and republished according to ISO 19115 through the CSW/ISO discovery interface, required by INSPIRE.

ISO profiler

Aim: CERIF result products are made available according to INSPIRE

CSW/ISO

slide16

Test case #2 Porting INSPIRE information to CERIF

INSPIRE Catalog

CSW/ISO

CSW/ISO accessor

The CERIF profiler enables discovery through an OpenSearch interface.

INSPIRE datasets stored in a CSW ISO catalog can be discovered and converted to CERIF XML documents.

Aim: INSPIRE datasets are discovered and returned according to CERIF XML Schema

slide18

Summarising some results … 1)

  • Data elements mapped:
  • 16/20 INSPIRE mandatory elements
    • 7 --> straightforward
    • 3 --> inferential
    • 6 --> by convention
  • 6/8 optional elements

Discovery of primary data elements based on CERIF Result Product

CERIF semantic layer facilitates a flexible application of the model in heterogeneous environments

BUT

needs specific constraints and rules

to establish consistent semantic integration

slide19

Summarising some results … 2)

  • Proposal of introducing a CERIF profile to extend ISO concepts with contextual research information:
    • Projects
    • Datasets associated to publications
  • Implementation and successful test of the GI-cat allows without additional implementation efforts:
  • Integration of ISPIRE datasets in RISs
  • Integration of RISs with environmental dataset systems

Future work: service discovery, extending mapping to ISO 19119

slide20

Discussion

Proposal of different solutions to be submitted to the euroCRIS community

  • Some further suggestions:
  • Introduction of a specific entity to univocally identify datasets as research products
  • Establish set of rules/procedures to create CERIF valid metadata extensions
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