Fig. 1
From: PIBAS FedSPARQL: a web-based platform for integration and exploration of bioinformatics datasets
PIBAS FedSPARQL architecture overview. The architecture consists of two main layers: query engine and user interface. The user interface enables users to construct simple and advanced queries and view the results of their execution. The query engine preforms a series of demanding processes that needs to be done before queries can be executed. The main query engine component, Data Source Manager, scans the local DataSources ontology, reads the user’s input and passes the information through the Query preparation component to the SPARQL query runner component, where the queries are executed. The Dataset projection component plays a role in the “Dynamic query filter” feature, allowing users to easily discover the structure of underlying datasets included in Federated SPARQL queries. The Detecting Similar Data Items component identifies similar data items from results retrieved after running predefined queries or queries extended with new datasets