Searcharxiv⌕ Search

arXiv subjects

Pece Mitrevski

Publications and source records attributed to Pece Mitrevski.

13 recordsLinked to original sources
arXiv2025

Modeling and Simulation of Data Protection Systems for Business Continuity and Disaster Recovery

In today's corporate landscape, particularly where operations rely heavily on information technologies, establishing a robust business continuity plan, including a disaster recovery strategy, is essential for ensuring swift recuperation following outages. This study presents a comparative analysis of recovery solutions, focusing on systems that operate partially or entirely within cloud environments and assessing their reliability in fulfilling organizational roles securely and dependably. Two such systems were deployed and evaluated in a real-world production setting. Key performance and reliability metrics were identified using simulation software to enhance these systems, alongside a System Dynamics analysis conducted for each. This work proposes a comprehensive framework for selecting and maintaining data protection and recovery solutions within organizational structures, outlining criteria for aligning chosen approaches with operational needs while adhering to predetermined timelines specified in business continuity and disaster recovery plans. The resulting analysis and findings offer actionable insights to guide decision-making when selecting appropriate recovery concepts.

cs.NI↗
arXiv2017

Cloud Computing and Content Management Systems: A Case Study in Macedonian Education

Technologies have become inseparable of our lives, economy, and the society as a whole. For example, clouds provide numerous computing resources that can facilitate our lives, whereas the Content Management Systems (CMSs) can provide the right content for the right user. Thus, education must embrace these emerging technologies in order to prepare citizens for the 21st century. The research explored 'if' and 'how' Cloud Computing influences the application of CMSs, and 'if' and 'how' it fosters the usage of mobile technologies to access cloud resources. The analyses revealed that some of the respondents have sound experience in using clouds and in using CMSs. Nevertheless, it was evident that significant number of respondents have limited or no experience in cloud computing concepts, cloud security and CMSs, as well. Institutions of the system should update educational policies in order to enable education innovation, provide means and support, and continuously update/upgrade educational infrastructure.

cs.CY↗
arXiv2017

Behavioural - based modelling and analysis of Navigation Patterns across Information Networks

Navigation behaviour can be considered as one of the most crucial aspects of user behaviour in an electronic commerce environment, which is very good indicator of user's interests either in the process of browsing or purchasing. Revealing user navigation patterns is very helpful in finding out a way for increasing sale, turning the most browsers into buyers, keeping costumer's attention, loyalty, adjusting and improving the interface in order to boost the user experience and interaction with the system. In this regard, this research has identified the most common user navigation patterns across information networks, illustrated through the example of an electronic bookstore. A behavioural-based model that provides profound knowledge about the processes of navigation is proposed, specifically examined for different types of users, automatically identified and clustered into two clusters according to their navigational behaviour. The developed model is based on stochastic modelling using the concept of Generalized Stochastic Petri Nets which complex solution relies on Continuous Time Markov Chain. As a result, calculation of several performance measures is performed, such as: expected time spent in a transient tangible marking, cumulative sojourn time spent in a transient tangible marking, total number of visits in a transient tangible marking etc.

cs.SI↗
arXiv2017

Reducing Competitive Cache Misses in Modern Processor Architectures

The increasing number of threads inside the cores of a multicore processor, and competitive access to the shared cache memory, become the main reasons for an increased number of competitive cache misses and performance decline. Inevitably, the development of modern processor architectures leads to an increased number of cache misses. In this paper, we make an attempt to implement a technique for decreasing the number of competitive cache misses in the first level of cache memory. This technique enables competitive access to the entire cache memory when there is a hit - but, if there are cache misses, memory data (by using replacement techniques) is put in a virtual part given to threads, so that competitive cache misses are avoided. By using a simulator tool, the results show a decrease in the number of cache misses and performance increase for up to 15%. The conclusion that comes out of this research is that cache misses are a real challenge for future processor designers, in order to hide memory latency.

cs.AR↗
arXiv2017

On the Usage of Databases of Educational Materials in Macedonian Education

Technologies have become important part of our lives. The steps for introducing ICTs in education vary from country to country. The Republic of Macedonia has invested with a lot in installment of hardware and software in education and in teacher training. This research was aiming to determine the situation of usage of databases of digital educational materials and to define recommendation for future improvements. Teachers from urban schools were interviewed with a questionnaire. The findings are several: only part of the interviewed teachers had experience with databases of educational materials; all teachers still need capacity building activities focusing exactly on the use and benefits from databases of educational materials; preferably capacity building materials to be in Macedonian language; technical support and upgrading of software and materials should be performed on a regular basis. Most of the findings can be applied at both national and international level - with all this implemented, application of ICT in education will have much bigger positive impact.

cs.CY↗
arXiv2014

Simulating e-Commerce Client-Server Interaction for Capacity Planning

Contemporary ways of doing business are heavily dependent on the e-Commerce/e-Business paradigm. The highest priority of an e-Commerce Web site's management is to assure pertinent Quality-of-Service (QoS) levels of their Web services continually, in order to keep the potential e-Customers satisfied. Otherwise, it faces an immense possibility of losing both e-Customers and revenues, along with a big possibility of gaining bad reputation due to either poor performance or unavailability of the e-Commerce Web site. In order to avoid numerous unpleasant consequences, by designing and implementing e-Commerce Web sites that will always meet e-Customer's high expectations, a relevant performance models have to be utilized to obtain appropriate performance metrics. A continuous assessment of current performances and especially predicting future needs are the subjects of capacity planning methodologies. Within this paper, such a predictive model has been described and evaluated by using discrete-event simulation of both the client-side and server-side processes involved. In addition, the paper discusses the performance metrics obtained as a function of the intensity and quality of the workload parameters.

cs.CY↗
arXiv2014

Regional Pilot Study to Evaluate e-Readiness and Local e-Government Services

The concept of local e-Government has become a key factor for delivering services in an efficient, cost effective, transparent and convenient way, in circumstances where a) citizens do not have enough time available to communicate with local authorities in order to perform their responsibilities and needs, and b) information and communication technologies significantly facilitate administrative procedures and citizens-government interaction. This paper aims to identify e-services that local authorities provide, and to investigate their readiness for delivering these services. A pilot research has been conducted to identify the offer of e-services by local authorities, along with e-readiness in municipalities of the Pelagonia region in the Republic of Macedonia. The survey was carried out by means of structured interview questions based on a modified model proposed by Partnership on Measuring ICT for Development - web analysis of municipal websites in the region has been conducted, as well. The study reveals uneven distribution according to the age group of users, lack of reliability and confidence for processing the needs and requests electronically by a large part of the population, and improperly developed set of ICT tools by local governments for providing a variety of services that can be fully processed electronically.

cs.CY↗
arXiv2014

On the Development of Methodology for Planning and Cost-Modeling of a Wide Area Network

The most important stages in designing a computer network in a wider geographical area include: definition of requirements, topological description, identification and calculation of relevant parameters (i.e. traffic matrix), determining the shortest path between nodes, quantification of the effect of various levels of technical and technological development of urban areas involved, the cost of technology, and the cost of services. These parameters differ for WAN networks in different regions - their calculation depends directly on the data "in the field": number of inhabitants, distance between populated areas, network traffic density, as well as available bandwidth. The main reason for identification and evaluation of these parameters is to develop a model that could meet the constraints imposed by potential beneficiaries. In this paper, we develop a methodology for planning and cost-modeling of a wide area network and validate it in a case study, under the supposition that behavioral interactions of individuals and groups play a significant role and have to be taken into consideration by employing either simple or composite indicators of socioeconomic status.

cs.NI↗
arXiv2013

ICT and Competitiveness of the Macedonian Economy

The ongoing process of liberalization, as well as the intensive technological breakthrough have a great impact either on the macroeconomic policy creators, or the dissimilarity of conventional approach to found a strategy of a certain company. Bearing in mind the very notation, core characteristics of the concept of competitiveness are needed to be explored, but also the necessity to establish a national competitiveness strategy. However, the main attention should be paid on the technological changes that affect the economic growth, but the life standard increase, as well. Nevertheless, developing and transitional economies are being down-sided with respect to the technological and innovative capability that measurably implies the necessity to redefine the conception of competitiveness. Taking into account the above clarifications, the paper will set a comparative analysis of the key factors that pressure the competitiveness of Balkans region countries, mainly by the composition of the Growth Competitiveness Index. In addition, the major accent will be put on the composite Technology index and its impact on the mainstream of the respective total index. Finally, the paper will examine the possible change of Growth Competitiveness Index ranking of the Macedonian economy, principally by the variation of the Technology index rank.

cs.CY↗
arXiv2013

Estimating the FDI Impact on Economic Growth and Export Performances of the European Economies in Transition

Within the last two decades, Foreign Direct Investment (FDI) has been observed as one of the prime instruments in the process of restructuring the European economies in transition. Many scholars argue that FDI is expected to be a source of valuable technology transfer thus might certainly have positive effects on host country development efforts. Nonetheless, there are no clear-cut findings about the FDI genuine performances in supporting the economic growth, productivity and export improvements within the European transition countries. Using a large and comprehensive data set, we will therefore analyze the linkage between FDI and above mentioned variables, so as to recommend national policy appropriate measures aimed at averting negative and strengthening the positive FDI spillovers.

q-fin.GN↗
arXiv2013

E-Business Implications for Productivity and Competitiveness

Information and Communication Technology (ICT) affects to a great extent the output and productivity growth. Evidence suggests that investment growth in ICT has rapidly accelerated the TFP (total factor productivity) growth within the European Union. Such progress is particularly essential for the sectors which themselves produce new technology, but it is dispersing to other sectors, as well. Nevertheless, decrease in ICT investment does not necessarily decline the ICT contribution to output and productivity growth. These variations come out from the problems related to the particular phenomenon proper assessment, but predominantly from the companies' special requirements, as well as the necessary adjustments of labour employed. Hence, this paper aims at estimating the huge distinction in terms of ICT and TFB contributions to labour productivity growth among some of the European member states, as well as the factors which might stand behind the particular findings.

cs.OH↗
arXiv2012

On the Performance Potential of Connection Fault-Tolerant Commit Processing in Mobile Environment

Mobile inventory, mobile commerce, banking and/or commercial applications are some distinctive examples that increasingly use distributed transactions. It is inevitably harder to design efficient commit protocols, due to some intrinsic mobile environment limitations. A handful of protocols for transaction processing have been offered, but the majority considers only a limited number of communication models. We introduce an improved Connection Fault-Tolerant model and evaluate its performance potential by comparing results in several deferent scenarios, as well as its contribution to the overall mobile transaction commit rate. Our performance analysis, conducted using general-purpose discrete-event simulation programming language, evaluates the effect of (i) ad-hoc communication between mobile hosts and (ii) the employment of an appropriate decision algorithm for mobile host agents. Conjointly, they substantially improve commit rate. In respect of the stochastic nature of random network disconnections, we determine connection timeout values that contribute the most to the highest perceived ad-hoc communication impact.

cs.NI↗