An RDF Platform for Generating Web API for Open Government Data

Most of datasets in open data portals are mainly in tabular format in spreadsheet, e.g. CSV and XLS. To increase the value and reusability of these datasets, the datasets should be made available in RDF format that can support better data querying and data integration. However, publishing and querying RDF requires different knowledge and skills. In this poster, we present a platform for publishing and querying the dataset in RDF that does not require the user’s knowledge of RDF and SPARQL. This framework supports semiautomatic construction of RDF data and RESTFul APIs from the datasets in tabular format. The framework provides automatic schema detection, i.e. data type detection, and ontology and RDF data mapping generation. RESTful API is provided on top of the SPARQL data querying service for each published RDF dataset. A platform prototype was developed and demonstrated using some datasets from the Data.go.th website. Some current research directions include automatic dataset API generation based on Web crawler and validator and development of intelligent search engine over the dataset APIs.