Oksana Herasymenko

Work place: Taras Shevchenko National University of Kiev, Volodymyrska Street, 64/13, 01601, Kiev, Ukraine

E-mail: oksgerasymenko@gmail.com


Research Interests: Computer Architecture and Organization, Distributed Computing, Data Mining, Data Structures and Algorithms


Oksana Herasymenko: Assist. professor of networking and Internet technologies department, Taras Shevchenko National University of Kiev.

Born at 1983 in Borzna town, Chernihiv region, Ukraine. M. Sc. in computer system and networks (2006) from Chernihiv State Technological University, Ukraine.

Major interests: resource control in distributed computing system and data mining. Now she is preparing her Ph.D. thesis in information technologies.

Author Articles
Distributed Computer System Resources Control Mechanism Based on Network-Centric Approach

By Zhengbing Hu Vadym Mukhin Yaroslav Kornaga Yaroslav Lavrenko Oksana Herasymenko

DOI: https://doi.org/10.5815/ijisa.2017.07.05, Pub. Date: 8 Jul. 2017

In this paper, we present the development of a decentralized mechanism for the resources control in a distributed computer system based on a network-centric approach. Intially, the network-centric approach was proposed for the military purposes, and now its principles are successfully introduced in the other applications of the complex systems control. Due to the features of control systems based on the network-centric approach, namely adding the horizontal links between components of the same level, adding the general knowledge control in the system, etc., there are new properties and characteristics. The concept of implementing of resource control module for a distributed computer system based on a network-centric approach is proposed in this study. We, basing on this concept, realized the resource control module and perform the analysis of its operation parameters in compare with resource control modules implemented on the hierarchical approach and on the decentralized approach with the creation of the communities of the computing resources. The experiments showed the advantages of the proposed mechanism for resources control in compare with the control mechanisms based on the hierarchical and decentralized approaches.

[...] Read more.
Analytical Assessment of Security Level of Distributed and Scalable Computer Systems

By Zhengbing Hu Vadym Mukhin Yaroslav Kornaga Yaroslav Lavrenko Oleg Barabash Oksana Herasymenko

DOI: https://doi.org/10.5815/ijisa.2016.12.07, Pub. Date: 8 Dec. 2016

The article deals with the issues of the security of distributed and scalable computer systems based on the risk-based approach. The main existing methods for predicting the consequences of the dangerous actions of the intrusion agents are described. There is shown a generalized structural scheme of job manager in the context of a risk-based approach. Suggested analytical assessments for the security risk level in the distributed computer systems allow performing the critical time values forecast for the situation analysis and decision-making for the current configuration of a distributed computer system. These assessments are based on the number of used nodes and data links channels, the number of active security and monitoring mechanisms at the current period, as well as on the intensity of the security threats realization and on the activation intensity of the intrusion prevention mechanisms. The proposed comprehensive analytical risks assessments allow analyzing the dynamics of intrusions processes, the dynamics of the security level recovery and the corresponding dynamics of the risks level in the distributed computer system.

[...] Read more.
Other Articles