...Dr Raul Espejo; Jerzy Jozefczyk; Dariusz Gasior Purpose – The concept of utility was the first time applied in Economics. The purpose of this paper is to report its usefulness for the decision making in complex technological systems, in general and in computer networks, in particular. Three...

...Jerzy Józefczyk; Dariusz Gąsior Purpose The purpose of this paper is to deal with a problem of admission control in computer networks when some of their parameters are uncertain. The case is considered when the most common probabilistic description of the uncertainty cannot be used and another...

... to be improved (Tang and Guo, 2004). Data security Cybernetics Financial control Computer networks Network financial information security is not a problem that only concerns financial industry, because it is closely related to economic security, social security and country security of China...

...Jerzy Józefczyk; Dariusz Gąsior Purpose The purpose of this paper is to examine the problem of rate allocation (RA) in computer networks in cases when some parameters are unknown or their values are imprecise. Design/methodology/approach The application of uncertain variables for the RA...

...(p^{k) for some k≥1. The smaller a power of p in the isoefficiency function is, the more scalable the parallel system. Here, the system includes the algorithm and architecture combination. Cybernetics Programming and algorithm theory Computer networks There has been}...

... Cybernetics Human‐computer interaction Computer networks Software engineering A global change resulting from a convergence between communication technologies – namely Internet and other devices technologies – namely robotics, mobile communication, and domotics – is presently occurring...

...Ivan Hanuliak As new computer communication systems, such as distributed computer networks or mobile data networks, grow in scale and complexity, the problem of being able to understand and to predict system behaviour becomes increasingly important. To their behaviour analysis we can use both...

..., then it can keep itself away from pollution. If we represent a state of a site by either I (infected) or O (non‐infected) and the state of a site i is denoted by INFE(i)∈{I, O)), then the former case of infection is defined mathematically as follows: Computer networks...

...Amitava Ghosal; Raja Ghosal Computer networks are very complex and somewhat unpredictable systems in dynamic operations. Cybernetic modelling, incorporating stochastic, fuzzy variables, wherever appropriate, approximating interactions not easily tractable via a black‐box systems approach, may...