scholarly journals Využitie vybraných metód operačného výskumu pri plánovaní ochrany síl vo vzdušných operáciách

2021 ◽  
Vol 20 (2) ◽  
pp. 54-63
Author(s):  
Martin Bakič ◽  

At the beginning of the article, we characterize the purpose, conditions, utilization and objectives of force protection for air operations. We focus on selected modern methods applicable in the planning process of force protection for air operations. The article presents the research based on the Markov model, scenario method (scenario planning) and SWOT analysis in aviation with direct implementation into the planning process in this field. We briefly define the selected methods and identify their specific use in force protection planning for air operations. Specifically, we examine the method application as efficiently as possible in real-life situations (in operations) or complex exercises before the actual deployment of forces.

2008 ◽  
Vol 4 (3) ◽  
pp. 191 ◽  
Author(s):  
Muhannad Quwaider ◽  
Subir Biswas

This paper presents the architecture of a wearable sensor network and a Hidden Markov Model (HMM) processingframework for stochastic identification of body postures andphysical contexts. The key idea is to collect multi-modal sensor data from strategically placed wireless sensors over a human subject’s body segments, and to process that using HMM in order to identify the subject’s instantaneous physical context. The key contribution of the proposed multi-modal approach is a significant extension of traditional uni-modal accelerometry in which only the individual body segment movements, without their relative proximities and orientation modalities, is used for physical context identification. Through real-life experiments with body mounted sensors it is demonstrated that while the unimodal accelerometry can be used for differentiating activityintensive postures such as walking and running, they are not effective for identification and differentiation between lowactivity postures such as sitting, standing, lying down, etc. In the proposed system, three sensor modalities namely acceleration, relative proximity and orientation are used for context identification through Hidden Markov Model (HMM) based stochastic processing. Controlled experiments using human subjects are carried out for evaluating the accuracy of the HMMidentified postures compared to a naïve threshold based mechanism over different human subjects.


2015 ◽  
Vol 1 (7) ◽  
pp. 43
Author(s):  
Olena Burunova ◽  
Sergii Gushko ◽  
Volodymyr Kulishov

The paper investigates the process of strategic management and missions of a multinational corporation on the basis of the model of the balanced scorecard (BSC) formation. Due to the trends in modern management, the development of a company’s strategy, and the estimation of its efficiency are carried out with increasing frequency by means of scorecards. Thus, the aim of the research is to explore the paradigm of strategic management of multinational corporations within the framework of implementation of the model of an enterprise scorecard in an ERP system. The topicality of the research is determined by the necessity to implement the worked out in detail monitoring of company’s activity in a strategic focus, which will allow increasing the operationability and efficiency of administrative decisions and controlling the most essential financial and non-financial performance indices. In the course of work, the authors were guided by the principles of systemic and dialectical approaches to explore the problem. Thereat methods of logic and factor analysis, swot analysis, scenario planning, approaches to grouping, comparison, generalization, interconnection of the theoretical and practical aspects of the work of multinational corporations were used. They serve to deepen the theoretical and methodological aspects referred to the formation of the accounting and analytical information and implementation of the balanced scorecard model in the process of institutionalization of informative economy. It is well-proven that optimization of a business strategy of companies contributes to realization of the information support mechanism of the accounting and analytical systems under the condition of ERP introduction- systems for the improvement of methods of accounting, control and analysis. It gives an opportunity to efficiently manage the resources of corporations, to regulate their production load, to control quality and push their products forward to foreign markets. It has been found out that, taking into account these tendencies, it is possible to construct a pay card of the system of indices according to the levels of acceptance of administrative decisions on the basis of all main business processes of a corporation.


Author(s):  
Maryam Ebrahimi

The main purpose of this study is to describe and analyze an agent from a distributed multi-agent based system (ABS) according to the BDI architecture. This agent is capable of autonomous action to propose general technology strategies (TSs) in renewable energy SMEs based on a set of rules and interacts with a core agent in multi ABS. The recognition of internal strengths and weaknesses as well as external opportunities and threats takes place on the basis of technological SWOT-analysis. Proposed TSs are categorized into four types: aggressive strategy, turnaround oriented strategy, diversification strategy, and defensive strategy. Agent architecture in terms of three abstraction layers called psychological, theoretical, and implementation is explained. And after system validation by experts, some program codes and output results of this agent are presented. This system provides information to facilitate the TS planning process to be carried out effectively.


Author(s):  
Ruth Banomyong ◽  
Apichat Sodapang

The purpose of this chapter is to provide a framework for the development of relief supply chain systems. An illustrative case study is presented in order to help relief supply chain decision makers in their relief supply chain planning process. Developing simulation models to test proposed relief supply chain response plans is much less risky than actually waiting for another disaster to happen and test the proposed relief supply chain model in a real life situation. The simulated outcome can then be used to refine the developed relief supply chain response model.


Author(s):  
Andreas Schühly ◽  
Frank Becker ◽  
Florian Klein

2015 ◽  
Vol 26 (1) ◽  
pp. 138-154 ◽  
Author(s):  
Marta Bottero

Purpose – The purpose of this paper is to propose a multi-methodological approach for assessing the sustainability of urban projects. The proposed framework has the objective of addressing the different dimensions involved in the analysis (economic, environmental, social, technological, cultural, etc.), following the subsequent phases for the definition of the projects (from a very general masterplan to more detailed preliminary projects). Design/methodology/approach – The multi-methodological approach is organized according to subsequent steps, involving the application of different evaluation methods, namely SWOT analysis, multicriteria analysis, discounted cash flow analysis and sensitivity analysis. With the aim of better illustrating the proposed approach, the method is applied on a real case concerning the project of a new boulevard in the city of Skopje. Findings – The proposed approach resulted to be successful in structuring the complex planning context and in increasing and improving the information for the project, thus acting as a learning process. Originality/value – The paper is based on the experimentation of an hybrid approach for addressing planning process. The multi-methodological framework can be useful in supporting decision making process in the domain of urban projects. In this sense, the proposed framework is able to communicate the planners’, designers’ and decision maker’s perspectives, to enhance transparency in the decision process and thus to increase acceptance.


Author(s):  
Chris A. Geldenhuys ◽  
Theo H. Veldsman

Orientation: In the hyper turbulent context faced currently by organisations, more flexible strategic planning approaches, such as scenario planning which take into account a more comprehensive range of possible futures for an organisation, will position organisations better than conventional forecast and estimates that depend only on a single, linearly extrapolated, strategic response.Research purpose: This study aimed to investigate how scenario-based planning (a strictly cognitive management tool) can be combined with organisational change navigation (a practice addressing the emotionality of change) and how this integrated process should be aligned with the prerequisites imposed by a developing country context and an Afro-centric leadership perspective in order to make the process more context relevant and aligned.Motivation for the study: The integration of organisational change navigation with conventional scenario based planning, as well as the incorporation of the perquisites of a developing countries and an Afro-centric leadership perspective, will give organisations a more robust, holistic strategic management tool that will add significantly more value within a rapidly, radically and unpredictably changing world.Research design, approach and method: The adopted research approach comprised a combination of the sourcing of the latest thinking in the literature (the ‘theory’) as well as the views of seasoned practitioners of scenario planning (the ‘practice’) through an iterative research process, moving between theory and practice, back to practice and finally returning to theory in order to arrive at a validated expanded and enhanced scenario-based planning process which is both theory and practice ‘proof’.Main findings: A management tool incorporating the change navigation and the unique features of developing countries and Afro-centric leadership was formulated and empirically validated. This management tool is referred to as a change navigation based, scenario planning process (CNBSPP).Practical/managerial implications: CNBSPP is available for use by organisations wishing to apply a strategic planning tool that fits within a developing country context and an Afro-centric leadership approach.Contribution/value add: The research makes a unique contribution to the current level of knowledge by integrating two disciplines usually practised independently of one another, namely scenario-based planning and organisational change navigation. It also embedded the process into a different context of application, that is, the developed world as viewed from an Afro-centric leadership perspective.


2019 ◽  
Vol 11 (24) ◽  
pp. 3048
Author(s):  
Laura Brewington ◽  
Victoria Keener ◽  
Alan Mair

This project developed an integrated land cover/hydrological modeling framework using remote sensing and geographic information systems (GIS) data, stakeholder input, climate information and projections, and empirical data to estimate future groundwater recharge on the Island of Maui, Hawaiʻi, USA. End-of-century mean annual groundwater recharge was estimated under four future land cover scenarios: Future 1 (conservation-focused), Future 2 (status-quo), Future 3 (development-focused), and Future 4 (balanced conservation and development), and two downscaled climate projections: a coupled model intercomparison project (CMIP) phase 5 (CMIP5) representative concentration pathway (RCP) 8.5 “dry climate” future and a CMIP3 A1B “wet climate” future. Results were compared to recharge estimated using the 2017 baseline land cover to understand how changing land management and climate could influence groundwater recharge. Estimated recharge increased island-wide under all future land cover and climate combinations and was dominated by specific land cover transitions. For the dry future climate, recharge for land cover Futures 1 to 4 increased by 12%, 0.7%, 0.01%, and 11% relative to 2017 land cover conditions, respectively. Corresponding increases under the wet future climate were 10%, 0.9%, 0.6%, and 9.3%. Conversion from fallow/grassland to diversified agriculture increased irrigation, and therefore recharge. Above the cloud zone (610 m), conversion from grassland to native or alien forest led to increased fog interception, which increased recharge. The greatest changes to recharge occurred in Futures 1 and 4 in areas where irrigation increased, and where forest expanded within the cloud zone. Furthermore, new future urban expansion is currently slated for coastal areas that are already water-stressed and had low recharge projections. This study demonstrated that a spatially-explicit scenario planning process and modeling framework can communicate the possible consequences and tradeoffs of land cover change under a changing climate, and the outputs from this study serve as relevant tools for landscape-level management and interventions.


Author(s):  
P Mahalakshmi ◽  
Muruganandam M ◽  
Sharmila A

ABSTRACTObjective: Voice Recognition is a fascinating field spanning several areas of computer science and mathematics. Reliable speaker recognition is a hardproblem, requiring a combination of many techniques; however modern methods have been able to achieve an impressive degree of accuracy. Theobjective of this work is to examine various speech and speaker recognition techniques and to apply them to build a simple voice recognition system.Method: The project is implemented on software which uses different techniques such as Mel frequency Cepstrum Coefficient (MFCC), VectorQuantization (VQ) which are implemented using MATLAB.Results: MFCC is used to extract the characteristics from the input speech signal with respect to a particular word uttered by a particular speaker. VQcodebook is generated by clustering the training feature vectors of each speaker and then stored in the speaker database.Conclusion: Verification of the speaker is carried out using Euclidian Distance. For voice recognition we implement the MFCC approach using softwareplatform MatlabR2013b.Keywords: Mel-frequency cepstrum coefficient, Vector quantization, Voice recognition, Hidden Markov model, Euclidean distance.


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