Zvezdan Stojanović

• Professor
• Professor (full) at European University, Brčko, Bosnia and Herzegovina

This paper explores innovative approaches to determining eigenvalues and eigenvectors through the combination of neural networks and traditional numerical methods. Traditional methods like the Newton‐ Raphson and Durand‐Kerner algorithms are proven effective but often require good initial approximations and can be sensitive to the choice of startin...

Вјештачка интелигенција увелико је ушла у све поре савременог дру- штва и сваким даном све бише утиче на наш свакодневни живот. Вјештачка интелиген- ција се користи у свим сферама модерног живота, почев од медицине, пољопривреде, контроли саобраћаја, код аутономних возила, код концепта паметне куће/зграде/гра- да. У раду ће се анализирати дубоко уч...

This study investigates the use of neural network and their ability to predict disease progression based on clinical data and biomarkers. Using deep neural networks, a model was developed that efficiently analyzes the complex relationship between various factors and predict the probability of disease. The model was validated using retrospective ana...

This paper explores the application of differential equations in modeling the dynamics of violence and preventive strategies in society. Violence represents a complex social phenomenon that affects various aspects of society, including safety, health, and quality of life. Through the lens of differential equations, this paper analyzes dynamic chang...

Sažetak Ovaj rad istražuje primjenu diferencijalnih jednačina u kontekstu modeliranja dinamike nasilja i preventivnih strategija u društvu. Nasilje predstavlja kompleksan socijalni fenomen koji utiče na različite aspekte društva, uključujući sigurnost, zdravlje i kvalitet života. Kroz prizmu diferencijalnih jednačina, ovaj rad analizira dinamičke p...

In the paper, spectral analysis of graphs and implementation in the Python programming language were carried out. Through a mathematical approach, spectral analysis reveals the structure of graphs and enables a deeper understanding of their characteristics. Implementation in Python uses various libraries like NetworkX and NumPy to facilitate graph...

Artificial neural networks find extensive applications in various fields, including complex robotics, computer vision, and classification tasks. They are designed to mimic the highly complex, nonlinear, and parallel computational abilities of the human brain. Just like neurons in the brain, artificial neural networks can be organized to perform rap...

Stohastiˇcke metode u veˇstaˇckoj inteligenciji Apstrakt. Ovaj rad istraˇzuje primene stohastiˇckih metoda u oblasti veˇstaˇcke inteligencije (VI), fokusiraju´ci se na njihov doprinos optimizaciji, uˇcenju i donoˇsenju odluka. Koriste´ci stohastiˇcke modele, omogu´cavamo VI da efikasno obradi nesigurnost, nepredvidljivost i varijaciju u podacima. A...

Wireless sensor networks play a key role in various applications such as environmental monitoring, smart cities and medical monitoring. Latency and reliability are two basic aspects that affect the efficiency and quality of service of these networks. In this research, delay and reliability analyzes of WSN were conducted through the application of m...

This paper explores the applications of stochastic methods in the field of artificial intelligence (AI), focusing on their contribution to optimization, learning, and decision-making. By employing stochastic models, we enable AI to effectively handle uncertainty, unpredictability, and data variation. We analyze how stochastic processes can improve...

Apstrakt. Ovaj rad istražuje primene stohastičkih metoda u oblasti veštačke inteligencije (VI), fokusirajući se na njihov doprinos optimizaciji, učenju i donošenju odluka. Koristeći stohastičke modele, omogućavamo VI da efikasno obradi nesigurnost, nepredvidljivost i varijaciju u podacima. Analiziramo kako stohastički procesi mogu poboljšati konver...

This paper presents the Parkinson "Parkinson detector'' application, which was developed in the Android environment and which should provide a modest contribution to the timely detection of the initial symptoms of Parkinson's disease. The application was developed for a smartphone, commercially available to everyone and using existing, already buil...

Information and communication technologies (ICT) have already entered many pores of modern society and without it, is difficult to imagine the life of modern man. In this paper, we will point out only он one segment of the application of ICT, and that is in the tourism sector and in the promotion of cultural heritage. Tourism can be a significan...

XML (eXtensible Markup Language) predstavlja pojednostavljenu verziju SGML-a (Standard Generalized Markup Language) opšteg meta jezika iz kojeg je nastao i HTML XML ne predstavlja zamjenu za HTML. HTML se koristi za formatiranje i prikaz podataka XML se koristi za stuktuiranje i skladištenje podataka između nekompatibilnih sistema. XML postaje vode...

Sažetak: XML predstavlja jezik za označavanje podataka koji ima fleksibilnu sintaksu koja omogućava da se opiše skoro svaki tip informacija, od najjednostavnijih do manje složenih baza podataka (otuda termin proširivost). XML predstavlja jezik za opis polustrukturiranih podataka koji je razvijen kao osnova za novu generaciju Web aplikacija za rad s...

The main scientific goal of this paper is that on the basis of the collected photos, files and documents, we can make one large database that will help us successfully in future use in medical sciences (dermatology), for early detection and diagnosis of the patient’s disease. In this research, we used techniques for fingerprint recognition. These t...

Tourism has a perspective to be a significant factor in economic growth some countries because it contributes prominently in GDP and creating new jobs. Today, tourism in Bosnia and Herzegovina (BiH) is a rapidly growing sector with great potential for further growth and development. Social media are the most popular channel of digital marketing. Fa...

Apstrakt. Matematika kao nauka i matematičkomatematičko modeliranje kroz historiju su se razvijali uporedo. Med-utim tek u skorijoj prošlostiprošlosti matematičko modelovanje se pojavljuje u osnovnim, srednjoškolskim i visokoobrazovnim nastavnim procesima, planovima i programima. Temeljna matematička kompetencija se definiše kao sposobnost osobe za...

Sadržaj-Parcijalne diferencijalne jednačine su grana inženjerske matematike koja u posljednjim decenijama na naučnom polju igra veoma važnu ulogu prilikom rješavanja određenih inženjerskih problema. U ovom radu primjenili smo jednu vrstu parcijalnih diferencijalnih jednačina prilikom ispitivanja uticaja mikrotalasa uočene su pojave koje se dešavaju...

Sadržaj-Parcijalne diferencijalne jednačine su grana inženjerske matematike koja u posljednjim decenijama na naučnom polju igra veoma važnu ulogu prilikom rješavanja određenih inženjerskih problema. U ovom radu primjenili smo jednu vrstu parcijalnih diferencijalnih jednačina prilikom ispitivanja uticaja mikrotalasa uočene su pojave koje se dešavaju...

Apstrakt. Matematika kao nauka i matematičko modeliranje kroz historiju su se razvijali uporedo. Med-utim tek u skorijoj prošlosti matematičko modelovanje se pojavljuje u osnovnim, srednjoškolskim i visokoobrazovnim nastavnim procesima, planovima i programima. Temeljna matematička kompetencija se definiše kao sposobnost osobe za razvoj i primjenu m...

The number of users accessing the Internet via mobile devices (smartphones, laptops, personal digital assistants) is constantly increasing. The most important advantage of mobile technologies over landline phone is the ability to access services anytime and anywhere. This feature can be used to enable the administration, both at the local and state...

Tourism has significant role in economic growth some countries because it contributes importantly in GDP of that countries and creating a new jobs. Today, tourism in Bosnia and Herzegovina (BiH) is a rapidly growing sector with great potential for further growth and development. Social media are the most popular channel of digital marketing. Facebo...

The use of social media has a wide range of applications in different areas of life. Accordingly, the impact of social networks in everyday life is growing. Bosnia and Herzegovina has a solid telecommunication infrastructure, which is of great importance for the development of social networks. This paper will show the application of social networks...

Today internet represents the most important technology for comunication and for reciving information. It would be dificult to imagine modern man living without the internet. However, despite the advantages such as, learning, reciving information, electronic managment, interner usage can also present a risk, especially for the younger population. I...

Effective collaboration between all level of government (on local and state level), all agencies and ministries have great impact on development one country. Here is reflected the importance of the introduction of e-government, which should effectively connect all of those participants into one efficient unit. Bosnia and Herzegovina is country with...

The number of users accessing the Internet via mobile devices is constantly growing. The reasons for this are manifold: the evolution of mobile networks of the large flow (3G, 4G) access to information anytime and anywhere, the ability of the current connection, the greater availability of information, and the like. Preconditions for this have been...

Due to the great advances in infrastructure and software, due to the huge capital invested in their development, and due to increasing demands for mobility customers and operations in real time, mobile networks are in a growing mode. According to relevant survey, the number of mobile subscribers in the global level has almost reached the total popu...

Basic differences between e-commerce and e-business are described in this paper. Phases in developing e-business and basic in developing corporate website are described in this paper too. Creation website is of the fundamental importance in e-business. Basic elements of the corporate website are described in this paper.

Usljed velikog napretka u infrastrukuri i u softveru, usljed ogromnog kapitala uloženog u njihov razvoj, te usljed sve većih zahtjeva klijenata za mobilnošću i poslovanjem u realnom vremenu, mobilne mreže bilježe sve veći rast. Prema relevantnim istraživanjima, broj mobilnih pretplatnika na globalnom svjetskom nivou je gotovo dostigao ukupan broj s...

One company can sells two or more separate products in a package for a single price. It is called "bundling". In this paper is described bundling in telecommunications area, that is, forming packages of the services, like triple play and quadruple play as a way which is used in Bosnia and Herzegovina by all operators with basic goal to keep existin...

In this paper is described some of the xDSL technologies, which are used in the M:TEL access network, problems and possible errors in the realisations of the Triple Play services in that network. It is suggested to use combination of the xDSL technologies and optical fibers in the access network. GPON is one of the possible solution for access netw...

Different services from the triple play concept have various requirements for using network resources, different nature considering required parameters of quality. Because of problems we can meet in access and backbone network which can cause overloading of network links, through implementing QoS the problems can be solved because, among other thin...

Different services from the triple play concept have various requirements for using network resources, different nature considering required parameters of quality. Because of problems we can meet in access and backbone network which can cause overloading of network links, through implementing QoS the problems can be solved because, among other thin...

Since mid-2010 leading operators in BiH began an intensive introduction of multimedia services. These services include an integrated offer of IPTV and a multicast Internet access. In the initial phase of the IPTV, end-users of services were offered linear programmed TV services and VOD services.

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This paper shows an analysis how to calculate proper bandwidth for VoIP calls after proper dimensioning of PSTN network. For this purpose, we use Erlang B and extended Erlang B formulae. Further, we have developed a software tool, named Bandwidth Calculator to calculate proper number of the circuits on the PSTN side and after that IP bandwidth. Tra...

This paper shows an analysis how to calculate proper bandwidth for VoIP calls after proper dimensioning PSTN network. For this purpose, we use Erlang B and extended Erlang B formulas. Further, we have developed a software tool to calculate proper numbers of the circuits on the PSTN side (using our bandwidth calculator) and after that, bandwidth on...

Sadržaj – Stalno povećanje Internet saobraćaja zbog broadband trenda, može dovesti do uskih grla u postojećim mrežama, jer poslovni i krajnji korisnici imaju sve veće zahtjeve za propusnim opsegom. Prilikom projektovanja kvalitetne VoIP mreže, mrežni administrator mora voditi računa o mnogobrojnim faktorima koji utiču na kvalitet VoIP poziva. U rad...