In this paper we use the concept of resource cumulation to model various forms of computation. The space of cumulations (called a cumulator) is simply represented as a five tuple consisting of a well-founded partial order, a monoid and a volume function. The volume function is introduced to simplify reasoning about limit points and other topological properties. A specification command is a set ...

When an update to a view is requested by a user, there may be no unique way of up dating the stored relations in the database to realize the requested update. Chosing one of the alternatives for updating stored relations may not reflect the change that has actually taken place in the real world; in the presence of other derived views, the database may actually present a very wrong model of the ...

The terms "cumulative" and "cumulative effects" are becoming more widely used in environmental impact assessment. The popularity of the concept is understandable as our culture comes to recognize that solitary insults to the environment considered in isolation cannot capture the full effect of the problems now before us. But what exactly do we mean by the term "cumulative"? "Cumulative" means g...

The cumulative cyber deterrence can be seen as a concept in which increasing the weight of different means and their use increases deterrent effect on common level or selected adversaries. Cumulative may include all traditional options deterrence, active passive. Active characterized targeting specific threats actors, consisting several methods, while passive is form commonly targeted at potent...

in the case of hazardous materials management, selected routes for carrying hazardous materials (i.e.,hazmat) have significant effects on locating hazmat distribution centers. since, risk and cost are usuallyconsidered as two main attributes to determine the best routes, optimized locations are sequentially outlineddepending on selected routes. in the present paper, two different approaches of ...

periodic vehicle routing problem focuses on establishing a plan of visits to clients over a given time horizon so as to satisfy some service level while optimizing the routes used in each time period. this paper presents a new effective heuristic algorithm based on data mining tools for periodic vehicle routing problem (pvrp). the related results of proposed algorithm are compared with the resu...