1 research outputs found
On The Marriage of SPARQL and Keywords
Although SPARQL has been the predominant query language over RDF graphs, some
query intentions cannot be well captured by only using SPARQL syntax. On the
other hand, the keyword search enjoys widespread usage because of its intuitive
way of specifying information needs but suffers from the problem of low
precision. To maximize the advantages of both SPARQL and keyword search, we
introduce a novel paradigm that combines both of them and propose a hybrid
query (called an SK query) that integrates SPARQL and keyword search. In order
to answer SK queries efficiently, a structural index is devised, based on a
novel integrated query algorithm is proposed. We evaluate our method in large
real RDF graphs and experiments demonstrate both effectiveness and efficiency
of our method.Comment: 14 page