Inter-domain routing policies are an important component of today’s routing infrastructure. Knowledge about these policies can be used for better traffic engineering, detecting misconfiguration, preventing policy conflicts and also, in understanding Internet routing. However, many domains consider their policies proprietary and rarely reveal them. Hence, techniques that reverse-engineer routing...

One of the security issues in data outsourcing is the enforcement of the data owner’s access control policies. This includes some challenges. The first challenge is preserving confidentiality of data and policies. One of the existing solutions is encrypting data before outsourcing which brings new challenges; namely, the number of keys required to access authorized resources, efficient policy u...

Mobile location-dependent information services (LDISs) have become increasingly popular in recent years. However, data caching strategies for LDISs have thus far received little attention. In this paper, we study the issues of cache invalidation and cache replacement for location-dependent data under a geometric location model. We introduce a new performance criterion, called caching efficiency...

Reinforcement learning (RL) is a kind of machine learning. It aims to optimize agents’ policies by adapting the agents to an environment according to rewards. In this paper, we propose a method for improving policies by using stochastic knowledge, in which reinforcement learning agents obtain. We use a Bayesian Network (BN), which is a stochastic model, as knowledge of an agent. Its structure i...

This research presents a model for optimal allocation of Iranian oil and gas resources in sanction condition based on stochastic linear multi-objective programming. The general policies of the resistive economy include expanding exports of gas, electricity, petrochemical and petroleum products, expanding the strategic oil and gas reserves, increasing added value through completing the petroleum...

proposed death certificate form ahangarzade rezaee s* received: 16 july, 2010 accepted: 25oct, 2010 abstract background & aims: health is the most important issue for the development of social justice in all developing countries. human life is strongly linked to accidents, injuries, and diseases that cause millions of deaths annually in the world. death record information is obtained through de...

− Dynamic load sharing policies take system state into account in making load distribution decisions. The state information can be maintained in one of two basic ways: distributed or centralized. Two principal types of policies that belong to the distributed scheme are the sender-initiated and receiverinitiated policies. In the centralized scheme, a central coordinator node is responsible for c...

We consider a novel use of mostly-correct reactive policies. In classical planning, reactive policy learning approaches could find good policies from solved trajectories of small problems and such policies have been successfully applied to larger problems of the target domains. Often, due to the inductive nature, the learned reactive policies are mostly correct but commit errors on some portion...