One of the most powerful features of SQL is the use of nested queries. Most research work on the optimization of nested queries focuses on aggregate subqueries. However, the solut...
Finite structure query (fsq for short) is a tool for querying syntactically annotated corpora. fsq employs a query language of high expressive power, namely full first order logi...
Currently most centralized RDF storage and query architectures have problems in query performance and scalability. In this paper we present a distributed RDF query architecture to ...
Qian Gao, Zhihuan Qiu, Yu Wu, Jing Tian, Yafei Dai