In this article, we provide a comprehensive introduction to knowledge graphs, which have
recently garnered significant attention from both industry and academia in scenarios that …

Generating value from data requires the ability to find, access and make sense of datasets.
There are many efforts underway to encourage data sharing and reuse, from scientific …

Abstract Billions of Linked Data triples exist in thousands of RDF knowledge graphs on the
Web, but few of those graphs can be queried live from Web applications. Only a limited …

8.1 The World Wide Web has radically altered the way we share knowledge, by lowering the
barrier to publishing and accessing documents as part of a global information space …

The Semantic Web anticipates integrated access to a large number of information sources
on the Internet represented as Resource Description Framework (RDF). Given the large …

Motivated by the ongoing success of Linked Data and the growing amount of semantic data
sources available on the Web, new challenges to query processing are emerging …

Open government data (OGD) refers to making public sector information freely available in
open formats and ways that enable public access and facilitate exploitation. Lately, a large …

Following the design rules of Linked Data, the number of available SPARQL endpoints that
support remote query processing is quickly growing; however, because of the lack of …

There has been a recent, tangible growth in RDF published on the Web in accordance with
the Linked Data principles and best practices, the result of which has been dubbed the “Web …

In this paper, we discuss the architecture and implementation of the Semantic Web Search
Engine (SWSE). Following traditional search engine architecture, SWSE consists of …