Organizations need to evaluate project proposals and select the ones that are the most effective in reaching the strategic goals by considering sustainability issue. In order to enhance the effectiveness and the efficiency of project oriented organizations, in this paper a new multi-objective decision making (MODM) approach of sustainable project portfolio selection is proposed which applies in...

This is Part I of a two-part paper series that studies the use of the proportional fairness (PF) utility function as the basis for resource allocation and scheduling in multi-channel multi-rate wireless networks. The contributions of Part I are threefold. (i) We present the fundamental properties and physical/economic interpretation of PF optimality. We show that PF leads to equal airtime alloc...

Large software companies have to plan their project portfolio to maximize potential portfolio return and strategic alignment, while balancing various preferences, and considering limited resources. Project portfolio managers need methods and tools to find a good solution for complex project portfolios and multiobjective target criteria efficiently. However, software project portfolios are chall...

This paper studies the design of a strategy-proof resource allocation rule in economies with perfectly divisible multiple commodities and single-peaked preferences. It is known that the uniform rule is the unique allocation rule satisfying strategy-proofness, Pareto efficiency, and anonymity if the number of commodity is only one and preferences are single-peaked (Sprumont (1991)). However, if ...

Software pipelining is a widespread technique to nd an instruction-level parallel schedule for loops. Reducing execution time often results in an increasing demand of resources to execute the loop operations and to store variables. This paper presents a new technique to reduce the register pressure generated by pipelined schedules. The technique nds a new schedule aiming at reducing the number ...

A priority-based scheduling algorithm which exploits both the multi-user and cooperative diversity of a cell that uses cooperative-relaying is proposed and analysed. The proposed scheduling algorithm jointly performs resource allocation and link adaptation, trying to find the transmission scheme (cooperative or direct, coding rates and modulation orders) which would provide the required bit-rat...

Emission trading schemes like the European Union Emissions Trading System (EUETS) try to reconcile economic efficiency and ecological efficiency by creating financial incentives for companies to invest in climate-friendly innovations. Using real options methodology we demonstrate that under uncertainty economic and ecological efficiency are still mutually exclusive. This problem is even tighten...

Due to the recent economic woes, information systems (IS) departments are under enormous pressure to cut costs while maintaining productivity in software development projects. Improving software project productivity has become a critical issue for every organization especially under the current economy uncertainty. Previous studies focus mainly on the efficiency of the traditional SAD process a...

Thermal efficiency is a common benchmark used to compare competing processes when a new LNG project is being developed. Often this type of comparison can be misleading when used in isolation because plant design premises are not consistent from project to project. Thermal efficiency depends on numerous issues such as gas composition, inlet pressure and temperature, and even more obscure issues ...