Considering the network structure is one of the new approaches in studying stochastic PERT networks (SPN). In this paper, planar networks are studied as a special class of networks. Two structural reducible mechanisms titled arc contraction and deletion are developed to convert any planar network to a series-parallel network structure. In series-parallel SPN, the completion time distribution f...

The analysis of flow in water-distribution networks with several pumps by the Content Model may be turned into a non-convex optimization uncertain problem with multiple solutions. Newton-based methods such as GGA are not able to capture a global optimum in these situations. On the other hand, evolutionary methods designed to use the population of individuals may find a global solution even for ...

Generative adversarial networks (GANs) [7] are a recent approach to train generative models of data, which have been shown to work particularly well on image data. In the current paper we introduce a new model for texture synthesis based on GAN learning. By extending the input noise distribution space from a single vector to a whole spatial tensor, we create an architecture with properties well...

Purpose – The concept of utility was the first time applied in Economics. The paper reports its usefulness for the decision making in complex technological systems, in general and in computer networks, in particular. Three selected decision making problems are considered, corresponding solution algorithms are explained and results of numerical experiments are presented for the selected real-wor...

Pattern recognition techniques are associated a symbolic identity with the image of the pattern. In this work we will analyze different neural network methods in pattern recognition. This problem of replication of patterns by machines (computers) involves the machine printed patterns. The pattern recognition is better known as optical pattern recognition. Since, it deals with recognition of opt...

The increased traffic load, proliferation of network nodes and, in particular, wireless user devices, and the boom in user services and exponential growth of information stored in content distribution networks (CDNs) have brought new challenges for current networks. One major challenge has and continues to be efficient load balancing and information access. The topics have been well studied for...

Numerous replica placement algorithms have been proposed in the literature for use in content delivery networks. However, little has been done to compare the various placement algorithms against each other and against caching. This paper debates whether we need replica placement algorithms in content delivery networks or not. The paper uses extensive evaluation of algorithms, systems and web wo...

This paper proposes a generic architecture and protocol for adaptive distribution of multimedia content within collaborative conferencing sessions, supplying applications like presentation sharing, co-browsing, or application sharing with extensive content. Applications building upon it are able to use efficient decoupled content delivery with adaptation in a tightlycoupled environment while in...

Content delivery is a growing enterprise in the Internet. Critical to the management of content delivery systems is understanding customer behavior, its impact on the consumption of system resources and how together, these affect revenue. We believe that price dictates overall customer behavior and that understanding the relationship between price and customer behavior is the key to effective s...

a methodology is presented in this paper to find optimal location and dosage of chlorine injection in water distribution networks. the objective is to minimize the chlorine consumption while keeping the residual chlorine at each node within the standard range. unfortunately because of wrong water quality management in water distribution networks in many parts of the world, many problems such...