RDF has seen increased adoption in recent years, prompting the standardization of the
SPARQL query language for RDF, and the development of local and distributed engines for …

With the advent of the two-day weekend and improvements in the public transit system,
people have begun to focus on leisure activities. When the YouBike public bicycle system …

As the main factor in the distributed database systems, query optimization is aimed at finding
an optimal execution plan to reduce the runtime. In such systems, because of the repeated …

Abstract Resource Description Framework (RDF) is increasingly being used to model data
on the web. RDF model was designed to support easy representation and exchange of …

Artificial and synthetic data are widely used for benchmarking and evaluating database,
storage and query engines. This is usually performed in static contexts with no evolution in …

Purpose Metaheuristic algorithms are classified into two categories namely: single-solution
and population-based algorithms. Single-solution algorithms perform local search process …

(Southwest China Institute of Electronic Technology, Chengdu 610036, China) Abstract:
Tactical cloud service platforms are important infrastructures for some advanced operational …

SPARQL query optimization relies on the design and execution of query plans that involve
reordering triple patterns, in the hopes of minimizing cardinality of intermediate results. In …

Nowadays information retrieved by a query is based upon extracting data across the world,
which are located in different data sites. In distributed database management systems …

The Semantic Web paradigm has opened several doors for representing information on the
web such that this information can be easily understood by both the humans and the …