Adaptive Service Composition for Meta-searching in a Mobile Environment

摘要

The underlying technologies driving the World Wide Web are largely based on the assumption of wired communications and powerful desktop hardware. This is not true when a user is accessing the Web pages and documents using a PDA and moving from wireless network in a mall to a neighboring office environment. Taking into consideration on the information needs of the user, we have developed a meta-search application that can be executed on mobile devices with limited hardware capabilities. By running in the auto-configuration mode, the system detects the dynamic contextual information, and presents the results of meta-searching in a suitable format to cope with the limitations of the mobile stations. This is achieved by an adaptive service composition that is defined according to the adaptation model defined in a system configuration file.