Enabling Interoperability of Government Data Catalogues

Abstract

Opening public sector information has recently become a trend in many countries around the world. Online government data catalogues with national, regional or local scope act as one-stop data portals providing descriptions of available government datasets. These catalogues though remain isolated. Potential benefits from federating geographically overlapping or thematically complementary catalogues are not realized. We propose an RDF Schema vocabulary as an interchange format among data catalogues and as a way of bringing them into the Web of Linked Data, where they can enjoy interoperability among themselves and with other deployed datasets. The vocabulary's design was informed by a survey of seven data catalogues from five different countries, and has been verified by unifying four data catalogues to allow cross-catalogue queries and browsing.

DataFinland—A Semantic Portal for Open and Linked Datasets

“…The voiD editor ve 17 and liftSSM 18 , an XSLT script that transforms a semantic sitemap in XML to voiD RDF/XML format, but these allow building only rudimentary descriptions, which should then be added to by manually editing the RDF file.…”

“…Finally, concurrently to our work, an interoperability format for governmental data catalogues based on the dcat RDF vocabulary was proposed in [17]. There, the metadata schema was based on existing metadata used in the data catalogues as opposed to the LOD based voiD.…”

Publishing Statistical Data on the Web

“…Recent research work also aims to facilitate government data ecosystems through specialized portals [12] and distributed dataset catalogs [13]. Another important issue, which is particularly tackled by this paper for the statistics domain, is enabling interoperability of government data catalogs [17].…”

“…The metric tag in line 16 defines which metric should be used to measure the similarity between data items. Finally, the acceptance and review environments (in lines [17][18] define what type of link should be generated for which threshold intervals. Table III summarizes the results of the link generation process between dados.gov.br, DBpedia and GeoNames.…”

Olap2datacube: An on-Demand Transformation Framework From Olap to RDF Data Cubes

“…Another important issue, which is particularly tackled by this paper for the statistics domain, is enabling interoperability of government data catalogs [Maali et al 2010].…”