We consider the problem of routing and admission control in a loss system featuring two classes of arriving jobs (high-priority and low-priority jobs) and two types of servers, in which decisionmaking for high-priority jobs is forced, and rewards influence the desirability of each of the four possible routing decisions. We seek a policy that maximizes expected long-run reward, under both the di...

Soil erosion is a serious problem especially in northern parts of Iran. One themost important side effects on soil erosion may be the decline in qualities of soil refers toagricultural productivity. So it is very important to assess the soil erosion risk for thesustainable development of agriculture. This study outlines ways undertaken to provide anew tool to manage water erosion from physical ...

Problems with water infrastructure are characterized by strong pressures of various stakeholders, besides to have heavy environmental and financial restrictions. This paper presents a group decisionmaking model for improvement of water infrastructure specially regarding with the reduction of water losses, by the integration of soft and hard approaches of Operational Research. Firstly, the soft ...

The advancement of network technology and the popularization of the Internet lead to increased interest in information recommendation. This paper proposes a group recommendation system that takes the preferences of group users in mobile environment and applies the system to recommendation of restaurants. The proposed system recommends the restaurants by considering various preferences of multip...

The current study investigates the process of selecting a cloud service provider for implementing an electronic health record (EHR) system on the cloud from a security standpoint. This is an important issue because many eligible physicians still do not use EHRs and thus cannot meet the meaningful use criteria and receive incentives provided by the Centers for the Medicare and Medicaid Services ...

Building a new GIS project is a major investment. Choosing the right GIS software package is critical to the success and failure of such investment. Because of the complexity of the problem a number of decision making tools must be deployed to arrive at the proper solution. In this study a new decision making approach for solving GIS software selection problem was proposed by integrating Expert...

This paper reports part of a study that examines how members of a senior management team in a public sector organisation make decisions under urgency. Four regional managers, who are geographically dispersed around New Zealand were interviewed, either face-to-face or via telephone, regarding their experiences of decisionmaking under urgency. Preliminary results indicate that only three out of a...