The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In large-scale data classification tasks, it is becoming more and more challenging in finding a true class from a huge amount of candidate categories. Fortunately, a hierarchical structure usually exists in these massive categories. The task of utilizing this structure for effective classification is called hierarchical classification. It usually follows a top-down fashion which predicts a sample...
Linear two-criteria problems of efficiency and risk control are considered. The minimax risk function and the risk function in the polyhedral 1-metric as risk assessment are used. Two-criteria problems are formalized in the form of the sum type convolution of the efficiency and risk criteria and of the ratio type convolution. It is shown that the solutions of the corresponding linear decision-making...
In recent times a number of discussions have been started about the pro's and con's of the traditional develop methods (Waterfall, Stage Gate) and more contemporary and incremental methods (Agile, DevOps1). These discussions are frequently related to themes of controlling risk and dealing with the dynamics of the environment of programs and projects. In this paper results from a literature study are...
The procedure of the aggregation of experts' individual probability estimates for solving probability inference problems in probability trees are proposed. The suggested methodology allows to consider specific forms of uncertainty arising from the process of interaction between the expert judgments. The structure of such interactions may be different in nature — they can be consistent, compatible,...
The importance of enterprise innovation risk management is constantly increasing, because it has influence on the company's leading positions, increasing its competitiveness in the domestic and international markets. It also helps to increase the economic and production potentials that are necessary to implement the innovative development strategy of the state as a whole. There are certain problems...
Objectives. The article proposes a modification of the method for quantitative risk assessment (the Monte Carlo simulation method) by taking into account the multifactorial relationship between the key parameters and the risk factors of the investment project, which makes it possible to obtain a more relevant and efficient sample of simulations. Methods. Investigations described in the article are...
Management of technological process in real time is associated with the emergence of risks related not only with the technical component work of a hazardous production facility, but also inaccurate or untimely assessments pre-emergency or emergency situations on the part of staff. In this article, the proposed methodology is focused on the process of obtaining elemental sulfur by Claus method used...
Offering strategy of a price-maker demand response aggregator (DRA) in a two-settlement market is presented in this paper. The aggregator minimizes its cost by offering energy and price bids in the day-ahead market and energy bids in the balancing market. On the other hand, DRA optimally manages the aggregated demands of a large number of electric vehicles and properly distributes them through the...
Possibility theory is briefly presented and proposed for the evaluation of epistemic uncertainty in electromagnetic-compatibility models. In particular, fuzzy sets are exploited to describe some unknown/uncontrolled model parameters which cannot be rigorously treated through probability theory, since their statistical distribution is unknown. A hybrid approach is used to combine such possibilistic...
Based on the three-terminal interval number and the project risk theory, this paper discusses the problem of risk weighting in uncertain market decision-making, and puts forward the method of combining the grey system theory and the three-terminal interval number to determine the weight of decision-making. The best-selling weight, the unsalable weight and the normal weight are calculated by expert...
Flood risk and supply chain resilience have emerged as a key management concern, due to global sourcing and globalization of supply chain. This study aims to develop a framework to identify important factors for the establishment of flood-resilient supply chain. The framework is formulated based on the concept of resilience triangle and the distinctive characteristics of flood disaster. The relevant...
Risk Management, according with the ISO Guide 73 is the set of "coordinated activities to direct and control an organization with regard to risk". In a nutshell, Risk Management is the business process used to manage risk in organizations. ISO 31000 defines a framework and process for risk management. However, implementing this standard without a detailed plan can become a burden on organizations...
Within the Dutch government the Gateway Review method has been adopted to facilitate a learning and helping perspective towards owners of high risk programs and projects with a substantial IT component. The current paper reports on findings from data analysis done on Gateway Review reports collected since the introduction of the method in the Ministry of Interior in the Netherlands. The conclusion...
No single, stand-alone decision-aid method, expert assessment methodology or physical, deterministic approaches can be used to solve complex real life problems which often imply several actors and base on heterogeneous imperfect information provided by several more or less reliable sources. This paper presents adapted and extended Multi-Criteria Decision-Making Methods (MCDMs) to help expertise process...
The paper provides the methodology of power network equipment technical state assessment risk evaluation to ensure effective power network operation and optimization of maintenance and repair schedules. The analysis of existing approaches for risk assessment is carried out from the point of mathematical formulation and existing application practice. The case study illustrates the calculation of technical...
Tunnel project is a large and complicated project, which often faced with huge potential risks. Therefore, the risk assessment of tunnel project is one of the essential work. Risk analysis has become a required tool to identify and quantify risk, as well as visualize causes and effects, and the course (chain) of events. During the process of risk assessment, however, because of limited information...
This paper presents a risk assessment algorithm for automatic lane change maneuvers on highways. It is capable of reliably assessing a given highway situation in terms of the possibility of collisions and robustly giving a recommendation for lane changes. The algorithm infers potential collision risks of observed vehicles based on Bayesian networks considering uncertainties of its input data. It utilizes...
Due to the proliferation of microgrids in distribution networks and then the growing penetration level of Renewable Energy Resources (RESs) laid in these blocks, the operation problem of microgrids faces with serious challenges caused by RESs volatility and uncertainties; in addition, the uncertainties caused by DGs probable outages compound the situation. These challenges put emphasis on the importance...
The ISO 26262 is currently the dominant functional safety standard for electrical and electronic systems in the automotive industry. The Functional Safety Concept subphase in the standard requires the Preliminary Architectural Assumptions (PAA) for allocation of functional safety requirements. This paper justifies the need for, and defines a process ATRIUM, for consistent design of the PAA. ATRIUM...
Traditionally, researchers and practitioners have been focused on deterministic costing models without acknowledge and handle conveniently cost uncertainty. This paper presents and discusses a methodology for measuring the risk within costing systems: Costing at Risk (CaR) which, considering a predefined confidence level, takes into account the worst expected outcome in terms of cost in a certain...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.