Premises of creation of Internet portal designed to provide access to participants of educational and scientific process for the joint creation, consolidation, concentration and rapid spreading of educational and scientific information resources in its own depository are considered. CMS-based portal content management systems’ potentiality is investigated. Architecture for Internet portal of MES of Ukraine’s information resources is offered.

Створення порталу інформаційно-довідкових ресурсів міністерства освіти і науки україни

Tensor Analysis of Networks. By Gabriel Kron. Pp. xxix, 635. 70s. 1965. (Macdonald)

Contemporary service enterprises face challenges of the rapidly evolving technologies and business environments. Thus, the precise analysis and the accurate planning can be a key to the selection of the “right” strategies for IT investments and the implementation of any new technologies. Consequently, the purpose of this paper is to contribute to the profiling and development a “Fail-safe” (i.e., Consistent) Service-oriented formal model to support architectural decisions in service enterprise planning, and dynamic business activities managing by “Fault-tolerant” design. Furthermore, the objective is to construct a “process/formal model” that can be applied by services providers in assignments concerning enterprise architecture, or IT architecture, planning and development. And, in turn, the goal of the “process/formal model” is to cover both areas of activity: the planning and enterprise processes effective management and development with a dependable (i.e., “Fault-tolerant”) methodology to save time and resources along the life-cycle.

Building Consistent Formal Specification for the Service Enterprise Agility Foundation

In this paper, to solve the problem of detecting network anomalies, a method of forming a set of informative features formalizing the normal and anomalous behavior of the system on the basis of evaluating the Hurst (H) parameter of the network traffic has been proposed. Criteria to detect and prevent various types of network anomalies using the Three Sigma Rule and Hurst parameter have been defined. A rescaled range (RS) method to evaluate the Hurst parameter has been chosen. The practical value of the proposed method is conditioned by a set of the following factors: low time spent on calculations, short time required for monitoring, the possibility of self-training, as well as the possibility of observing a wide range of traffic types. For new DPI (Deep Packet Inspection) system implementation, algorithms for analyzing and captured traffic with protocol detection and determining statistical load parameters have been developed. In addition, algorithms that are responsible for flow regulation to ensure the QoS (Quality of Services) based on the conducted static analysis of flows and the proposed method of detection of anomalies using the parameter Hurst have been developed. We compared the proposed software DPI system with the existing SolarWinds Deep Packet Inspection for the possibility of network traffic anomaly detection and prevention. The created software components of the proposed DPI system increase the efficiency of using standard intrusion detection and prevention systems by identifying and taking into account new non-standard factors and dependencies. The use of the developed system in the IoT communication infrastructure will increase the level of information security and significantly reduce the risks of its loss.

A Software Deep Packet Inspection System for Network Traffic Analysis and Anomaly Detection.

This chapter presents an adapted bat-inspired algorithm (ABA) besides a search space shrinking (SSS) in the frame of an efficient hybrid algorithm (EHA) for transmission network expansion planning (TEP). The network losses considered in the comprehensive efficient application of EHA to a real system with large-scale. In this approach, ABA handles the discrete variables of TEP. The evaluation of the fitness function as well as the planning options are via an optimal power flow. The SSS technique has a crucial role in the definition of ABA initial candidates, thereof considerably reduction of solution search space, thus the computational performance of the proposed ABA. The evaluation of Southern Brazilian system validates the proposed approach in comparison to the other state-of-the-art algorithms.

A Hybrid Bat-Inspired Algorithm for Power Transmission Expansion Planning on a Practical Brazilian Network

In this paper we investigate the impact of the algorithm of intellectual vertical handover proposed by our team earlier. In this paper we have improved the algorithm of handover functioning using fuzzy logic based on cloud computing platform and core network for 5g services. To ensure the ABC (Always best connected) demands, intellectual vertical handover decision strategies have been proposed in the paper using advanced tools and concepts.

Mobility management and vertical handover decision in an always best connected heterogeneous network

An efficient management of information/service workflows and their easy, highly-adaptive configuring in various distributed networked architectures enables reliable and effective performance a lot of applications. Among them are the distributed Web portals with related database networks for e/m-business, socio-commercial nets, corporate/enterprise networks, software of NGN architectural platforms on the low and high system levels, and so on. Thus, we propose in this paper an approach that allows considering the architecture of any kind of networked systems, which could be described by the graphs - formalized, for example, with help of its adjacency matrix. This approach comprises a characterization and deployment of the networked system topological properties. Namely, it involves an a priory approximate determination of the basic network design characteristics, e.g., information/service workflows capacity and the reliability assessment including configuration changes in running systems.

An Approach to the Flexible Information/Service Workflow Managing in Distributed Networked Architectures

In this paper is proposed method of intellectual vertical handover that allows performing unloading of wireless heterogeneous access networks using multi-criteria network evaluation. An algorithm of handover functioning is further improved using fuzzy logic based on cloud technology. An imitation model is created for investigation of heterogeneous network with realization of proposed algorithm of initiation of vertical handover. A process of service provisioning by heterogeneous network is investigated based on created model. In the process of modeling it is shown that proposed algorithm allows choosing optimal cell for each individual user among available cells of different access systems.

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A Novel Approach of Optimum Multi-criteria Vertical Handoff Algorithm for Heterogeneous Wireless Networks

Modern enterprises are global, associative e-business infrastructures involving employee, supplier, partner and customer networks. These dynamic, distributed organisations must have a flexible structure designed to move quickly in the face of global competitive pressures. Highly structured, vertically integrated, hierarchical organisations cannot respond to increasingly shorter periods of opportunity. Thus, we develop in this paper a method that allows considering the architecture of any kind of networked systems, which could be described by the formalised graphs and its adjacency matrix. This approach encompasses a categorisation and utilisation of the networked system topological properties. Namely, it involves an a-priory approximate determination of the basic network design performance features, e.g., information transfer capacity and the reliability assessment including configuration changes in running systems.

Enterprise distributed service platform – network architecture and topology optimisation

Modern distributed service-oriented networks are complex heterogeneous systems. This includes cloud network. To solve synthesis problems of distributed service-oriented structures an algorithm of conformal mapping topology that is based on the definition of hyperbolic virtual coordinates has been proposed. This algorithm requires less iterations than other methods and is able to provide guaranteed delivery of data and decreasing of ratio between the number of iterations and nodes in the process of intensive rapid convergence.

Ivan Demydov

Papers

Mobility management and vertical handover decision in an always best connected heterogeneous network

An Approach to the Flexible Information/Service Workflow Managing in Distributed Networked Architectures

A Novel Approach of Optimum Multi-criteria Vertical Handoff Algorithm for Heterogeneous Wireless Networks

Enterprise distributed service platform – network architecture and topology optimisation

Synthesis of distributed service-oriented structures cloud networks is based on algorithm for determining hyperbolic virtual coordinates