Twig pattern matching (TPM) is the core operation of XML query processing. Existing approaches rely on either efficient data structures or novel labeling/indexing schemes to reduce...
An optimization query asks for one or more data objects that maximize or minimize some function over the data set. We propose a general class of queries, model-based optimization ...
On the Internet, the limited query-processing capabilities of sources make answering even the simplest queries challenging. In this paper, we present a scheme called GenCompact fo...
Abstract. Although a number of methods have been proposed to process exact match or range queries in P2P network, very few attention has been paid on spatial query process. In this...
In the environment of wide-area networks such as the Internet, distributed query processing becomes problematic due to the changing coming from both underlying networks and user...