Pricing is important for the design, operation, and management of communication networks. Pricing has been used with two different meanings in the area of communication networks. One is the “optimization-oriented” pricing for network resource allocation: it is made popular by Kelly’s seminal work on network congestion control. The Transmission Control Protocol (TCP) has been successfully […]
Local Versus Integrated Interface Schemas
Web information extraction and annotation has been an active research area in recent years. Many systems rely on human users to mark the desired information on sample pages and label the marked data at the same time, and then the system can induce a series of rules (wrapper) to extract the same set of information […]
Tree Patterns Used in Optimization Processes
A comprehensive survey about XML tree patterns, which are nowadays considered crucial in XML querying and its optimization. We first compare TPs from a structural point of view, concluding that the richer a TP is with matching possibilities, the larger the subset of XQuery/XPath it encompasses, and thus the closer to user expectations it is. […]