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This article provides an overview of modern methods and approaches to scientific and technological solutions' efficiency assessment. Much attention is paid to the problems of the criteria set formulation and the identification of their optimal structure for solving the stated problem. In the paper, based on practical results, the analysis of the effectiveness of scientific and technical solutions,...
In this paper, a method to calculate the probability of lightning attaching in an area-of-interest of any polygonal shape and based on Lightning Location System (LLS) data is described. The calculation is based on previous work in which the equations necessary for calculating the probability of lightning attaching in an area are described. By combining this approach with some of the techniques used...
Due to the rapid growth in scale and complexity of information networks, self-organizing systems have been focused on for realizing new network control architectures that have high scalability, adaptability, and robustness. However, in self-organizing systems, the uncertainty (incompleteness, ambiguity, and dynamicity) of information observable for components in the system can lead to the slow adaptation...
The relevance of the task of developing methods for forecasting the condition of the tracking object is shown, since the results of its solution affect the quality of its functioning as a whole. A method for forecasting the functional state of an escort object in conditions of behavioral uncertainty is presented, based on a gradient descent in the space of functional states.
The problems of control applied investment processes under risk conditions are considered. Firstly, theoretical considerations given regarding the formulation and approximate solution of the optimization problem in the presence of finite series of observation of the flow of the process. □ Secondly, we present the results of the computational experiments.
This paper deals with a design problem of variable gain robust model following/tracking control for a class of uncertain linear systems. The new proposed variable gain robust control system is composed of fixed gain controllers and variable ones. In this paper, LMI-based sufficient conditions for the existence of the proposed variable gain robust controller are given. Finally, a simple numerical example...
A simple but versatile approach to robust control design for linear systems with system and exogenous disturbances is proposed. The proposed approach is based on the technique of linear matrix inequalities and the concept of invariant ellipsoids. The approach is easily implemented computationally, its efficacy is demonstrated on the benchmark example of the F-16 aircraft model.
In this paper, we leverage two large-scale real-world datasets to provide the first results on the limits of predictability of cellular data traffic demands generated by individual users over time and space. Using information theory tools, we measure the maximum predictability that any algorithm has potential to achieve. We first focus on the predictability of mobile traffic consumption patterns in...
Small/micro Unmanned Aerial Systems (UAVs) require the ability to operate with constraints of a diverse, automated airspace where obstacle telemetry is denied. This paper proposes a novel Sense, Detect and Avoid (SDA) algorithm with inherit resilience to sensor uncertainty. This is achieved through the interval geometric formulation of the avoidance problem, which by the use of interval analysis,...
Considering the Insect-like flapping-wing micro aerial vehicle, this paper has analyzed the composite of quasi-steady aerodynamics. That process has associated with the affection due to addition quality produced by wake capture. With introducing rotate circulation. This paper has calculated the lift, drag force, and pitch torque which take part on the wings' surfaces. Ignoring the wings' quality,...
Consensus based distributed robust adaptive finite-time secondary voltage control is designed for inverter-based islanded AC microgrids. The design combines decentralized local states information with the states of the neighboring distributed generators with directed communication topology. Robust control algorithms are used locally for each distributed generator to deal with uncertainty. Lyapunov...
This paper presents a new robust estimation of the lateral velocity and yaw rate using switched Takagi-Sugeno fuzzy interval observers. The longitudinal velocity is treated as the online measured time-varying parameter and the cornering stiffness at front and rear tires are assumed to be unknown but bounded with a priori known bounds. Based on a multiple model switching structure, this design divides...
A modified measurement procedure for the purity determination of high purity potassium iodate is described. The procedure consists of the coulometric standardization of sodium thiosulfate by generated iodine, stoichiometric interaction of standardized sodium thiosulfate with potassium iodate and the coulometric titration of excess sodium thiosulfate by generated iodine. In the proposed measurement...
The paper presents a probabilistic approach (PA) to quantify the impacts of increased PV connections in bidirectional feeders within a distribution network. The aim is to establish a tool that can serve distribution network operators (DNOs) in seizing the maximum allowable photovoltaic (PV) connections, and ultimately with their responsibility on providing a reliable and secure power. An uncertainty...
Decisions are often made under risk and a decision-maker's risk preference naturally interferes the decision made. This study analyzes how Brazilians react when they made a decision under risk. The analysis involves the use of lotteries in a smartphone purchase scenario, attempting to identify if specific characteristics of the individuals, such as age, educational level, gender or marital situation,...
Arms race is a typical conflict among rational and non-myopic decision-makers (DMs). Nevertheless, the assumption of basis graph model for conflict resolution (GMCR) is not suitable for this issue that each DM possesses identical priority disregarding the difference of their capabilities. In order to handle with this drawback, this paper proposes a novel methodology, entitled capability-based GMCR...
This paper applies the CVIU (Control Variation Increases Uncertainty) approach to a discrete time scenario. Important solution characteristics are indicated, which conceptually preserves the findings in the continuous time case presented in [1]. Mainly, the arising of three control regions in the state space and the association of the value function with a discrete Lyapunov and a modified Riccati...
Aiming at multiple-input multiple-output (MIMO) systems with multiple time delays in the process industry, all-pole approximation is proposed for different time delays in this paper. What is more, in order to reinforce the tracking performance and controller robustness in the case of uncertainty and disturbance, loop transfer recovery method at output side is proposed to realize the multiple-loops...
Real-time applications are usually well-defined and operate based on a particular system model. However, in practical scenarios, the applications can perform differently because of the uncertainties in the environment. The system can use video streams to capture sequential real-time information of its surroundings. The system also needs to identify various constraints that have significant effects...
Fuzzy logic systems have been extensively applied for solving many real world application problems because they are found to be universal approximators and many methods, particularly, gradient descent (GD) methods have been widely adopted for the optimization of fuzzy membership functions. Despite its popularity, GD still suffers some drawbacks in terms of its slow learning and convergence. In this...
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