We present a new algorithm called Variable Message Size (VMS) ADOPT for solving Distributed Constraint Optimization Problems (DCOP) which trades off message size and memory usage for running time. The algorithm is applied to a wireless network optimization problem, in which small robots act as wireless routers with the objective of maximizing signal strength in the network by repositioning them...

In the near future FPGAs will be available by the hour, however this new Infrastructure as a Service (IaaS) usage mode presents both an opportunity and a challenge: The opportunity is that programmers can potentially trade resources for performance on a much larger scale, for much shorter periods of time than before. The challenge is in finding and traversing the trade-off for heterogeneous Iaa...

For so long, Quality, Cost, and Time become an Iron Triangle for measuring project success. Many researchers have investigated about Quality-Cost-Time in a Project Network under uncertainty, particularly it focuses on single parameter (Quality/Cost/Time only) or combination between parameters (trade off or relation between parameters). Knowing the probability to meet these three targets is impo...

Project planner’s main goal is to complete project with minimal time as well as minimal cost. Much effort (e.g. resources which demand cost) is required to complete the project in shorter time. There is a trade-off relationship between activity duration and its resources. This study employed a GA based multi-objective approach for time-cost tradeoff using resources-time tradeoff as input. Combi...

Data abstraction is the process of reducing a large dataset into one of moderate size, while maintaining dominant characteristics of the original dataset. Data abstraction quality refers to the degree to which the abstraction represents the original data. The quality of an abstraction directly affects the confidence an analyst can have in results derived from such abstracted views about the act...

PURPOSE The recent Breast Cancer Prevention Trial has shown that tamoxifen may prevent invasive breast cancer. We used a Markov model to estimate the long-term effects of chemoprevention with tamoxifen on survival, quality-adjusted survival, and health care costs. METHODS We used a hypothetical cohort of women with breast-cancer risk similar to that of participants in the Breast Cancer Preven...

Quality health care is an essential human right, on the agenda of sustainable development and presents a challenge in twenty-first century. There are different perspectives regarding price quality care, it necessary to review issue how influenced by price. The aim this study explore dimensions quality, examine association with technology, market characteristics, additional optional services sus...

A bi-objective mathematical model is developed to simultaneously consider the quay crane and yard truck scheduling problems at container terminals. Main real-world assumptions, such as quay cranes with non-crossing constraints, quay cranes’ safety margins and precedence constraints are considered in this model. This integrated approach leads to better efficiency and productivity at container te...