Preface

Abstract

The Second International Conference on it Decision Support for Telecommunications and Information Society DSTIS-2002, organised by the National Institute of Telecommunications in Warsaw (5th - 7th September 2002), assembled researchers working in several modern and important fields of telecommunications and computer science. Some papers submitted to this conference are presented at this issue. Domains of decision support and optimisation are represented here by five papers. One of them is devoted to the procedure for finding the optimal decision in the case when information about the state of nature and utility functions is imprecisely defined. The next paper shows how the class of reference point methods can be reduced to the class of weight methods, so it is possible to implement both classes in the same technical framework. Another approach to reference point and vector optimisation applies evolutionary algorithms, using them in an interactive mode. The problem of allocation of limited resources among competing activities is also presented, showing how to achieve the best overall performances with fair treatment of all activities. The last paper of this group describes two ideas of modifying projection methods for the case of nonlinear optimisation. (...)