Aggregated search of data and services

A Framework for Searching Semantic Data and Services with SPARQL

“…Figure 4 show the number of false negatives (<0)and false positives (>0) of the service discovery on a set of 18 OWL-TC queries that have been used for evaluation in [3]. We have rewritten these queries in SPARQL to make them usable within our framework.…”

“…Our work is inspired by the work in [3] which aims to look for services that are related to a given query based on keywords comparison between an SQL-like query and a service ontology. This approach uses generated semantics for services to expand the search area.…”

“…Semantic web services (SWS) approaches include expressive languages like OWL-S 2 , WSMO for complex business services or, more recently, simple vocabularies like MSM to publish various service descriptions as linked data. Most of the SWS description languages are RDF 3 -based (such as OWL-S, MSM) or offer a RDF representation (WSML). Therefore, existing tools for publishing SWS like iServe 4 are basically RDF stores that allow access via SPARQL endpoints and hence, they can be considered also as a part of the LOD.…”

“…We are not aware of other federated approaches able to find data and related services in the LOD. An approach for aggregated search of data and services was proposed in [3], but it requires building global schemas for data and services and lacks a full support for the LOD and for semantic queries.…”

Searching Linked Data and Services with a Single Query

“…Aggregated Search of Data and Services [12] proposes to answer an SQLlike data query on XML datasets and RDBMS and propose relevant services to the latter. It generates a semantic graph for I/O of WSDL services using a user provided ontology and Wordnet 12 .…”