The data fusion technique has been investigated by many researchers and has been used in implementing several information retrieval systems. However, the results from data fusion vary in different situations. To find out under which condition data fusion may lead to performance improvement is an important issue. In this paper, we present an analysis of the behaviour of several well-known method...

Monitoring on smartphones and mobile devices presents several challenges, such as limited battery power and computing resources, but also provides some unique opportunities, particularly the ability to capture contextual data. Incorporating the context of the activities being monitored could improve performance modeling. Real-time monitoring could also be used to facilitate contextaware applica...

A large number of commercial simulation tools support performance oriented studies of complex computer and communication systems. Reliability of these systems, when desired, must be obtained by remodeling the system in a different tool. This has obvious drawbacks: (i) substantial extra effort is required to create the reliability model, (ii) through modeling error the reliability model may not ...

Earth orientation prediction has undergone a number of changes over the last few decades in response to changing conditions in the Earth orientation parameter user community. However, considering the recent pace of change, it is likely that the rate at which innovations are introduced into the prediction process will increase. Potential drivers for change are discussed and possible directions f...

xiii Chapter 1: Introduction 1 1.1 The growth of the Internet . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Predicting the performance of the Internet: existing techniques and limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.3 Downscaling the Internet: a new direction for performance prediction . 5 1.4 The evolution of wireless networks . . . . . . ....