With an upsurge in number of available smart phones, tablet PCs etc. most users find it easy to access Internet services using mobile applications. It has been a challenging task for mobile application developers to choose suitable security types (types of authentication, authorization, security protocols, cryptographic algorithms etc.) for mobile applications. Choosing an inappropriate security type for a mobile application may lead to performance degradation and vulnerable issues in applications. The choice of the security type can be done by decision making. Decision making is a challenging task for humans. When choosing a single alternative among a set of alternatives with multiple criteria, it is hard to know which one is the better decision. Mobile application developers need to incorporate Multi-Criteria Decision Making (MCDM) Models to choose a suitable security type for mobile application. A decision model for application security enhances decision making for mobile application developers to decide and set the required security types for the application. In this thesis, we discuss different types of MCDM models that have been applied in an IT security area and scope of applying MCDM models in application security area. Literature review and evaluation of the selected decision models gives a detailed overview on how to use them to provide application security. / The first chapter introduces the thesis work. The second chapter presents the background of decision making models, their process, and the classification of decision making models. The third chapter presents the research methodology we have used in different phases which aims to answer the research questions. The fourth chapter gives a detailed literature study of how decision models can be used in application security. The fifth chapter evaluates selected decision models. The sixth chapter concludes the thesis and presents future work.

The realism of virtual surgery through a surgical simulator depends largely on the precision and reliability of the haptic device. The quality of perception depends on the design of the haptic device, which presents a complex design task due to the multi-criteria and conflicting character of the functional and performance requirements. In the model-based evaluation of the performance criteria of a haptic device, the required computational resources increase with the complexity of the device structure as well as with the increased level of detail that is created in the detail design phases. Due to uncertain requirements and a significant knowledge gap, the design task is fuzzy and more complex in the early design phases. The goal of this thesis is to propose a situated, i.e., flexible, scalable and efficient, methodology for multi-objective and multi-disciplinary design optimization of high-performing 6-DOF haptic devices. The main contributions of this thesis are: 1. A model-based and simulation-driven engineering design methodology and a flexible pilot framework are proposed for design optimization of high-performing haptic devices. The multi-disciplinary design optimization method was utilized to balance the conflicting criteria/requirements of a multi-domain design case and to solve the design optimization problems concurrently. 2. A multi-tool framework is proposed. The framework integrates metamodel-based design optimization with complementary engineering tools from different software vendors, which was shown to significantly reduce the total computationally effort. 3. The metamodeling methods and sampling sizes for specific performance indices found from case studies were shown to be applicable and usable for several kinds of 6-degrees-of-freedom haptic devices. 4. The multi-tool framework and the assisting methodology were further developed to enable computationally efficient and situated design multi-objective optimization of high-performing haptic devices. The design-of-experiment (DOE) and metamodeling techniques are integrated with the optimization process in the framework as an option to solve the design optimization case with a process that depends on the present system complexity. / <p>QC 20171108</p>

This article seeks to enhance acceptance of the profile distance method (PDM) in decision support systems. The PDM is a multiple attributive based decision making as well as a multiple method approach to support complex decision making and uses a heuristic to avoid computationally complex global optimization. We elaborate on the usability of the method and question the heuristic used. We present a bisection algorithm, which efficiently supports the discovery of transition profiles needed in a user-friendly and practical application of the method. Additionally, we provide empirical evidence showing that the proposed heuristic is efficient and delivers results within 5% of the global optimizer for a wide range of data sets.

Kyoto University (京都大学) / 0048 / 新制・課程博士 / 博士(工学) / 甲第15363号 / 工博第3242号 / 新制||工||1488(附属図書館) / 27841 / 京都大学大学院工学研究科都市環境工学専攻 / (主査)教授 寶 馨, 准教授 山敷 庸亮, 准教授 立川 康人 / 学位規則第4条第1項該当

[pt] Nas últimas décadas, foi possível presenciar a forte pressão da opinião pública para reduzir os acidentes com danos ambientais e colisões rodoviárias. Diversas empresas multinacionais, organizações não-governamentais, assim como governos têm investido muitos recursos nesse sentido. A Alfa, uma empresa petroleira com grande presença na América Central, fez uma enorme redução de empresas fornecedoras de transporte nesta região para poder gerenciar, de maneira mais adequada, seus contratados e, junto com eles, trabalhar em busca da minimização do número de acidentes. Assim, no lapso de três anos, a empresa cortou suas relações com quase uma centena de fornecedores e reestruturou sua operação de transporte contratado. Para chegar a um número tão menor de provedores, a empresa lançou mão de várias técnicas de análise de fornecedores de transporte, de técnicas de negociação eletrônica pela Internet e de um método multicritério de apoio à decisão, desenvolvido por ela. Cada uma destas etapas foi revista à luz da bibliografia acadêmica correspondente, o que possibilita a comparação de modelos apontados somente na teoria quanto à sua aplicação prática. Os resultados mostraram que o caso estudado, além de haver conseguido chegar a seu objetivo, é um caso de sucesso que traz valiosas contribuições à bibliografia acadêmica. / [en] In the last decade it was possible to observe a strong pressure from public opinion to reduce the accidents with environmental consequences and road collisions. Several multinational companies, Non Governmental Organizations, as well as Governments have invested great amount of resources for this aim. Alpha, an oil company, with large operation in Central America, made an enormous carriers reduction in this region, with the objective of being able to manage, in a suitable manner, their contractors and work altogether in the search of accident minimization. Thus, in the lapse of three years the company cancelled its relation with almost one hundred of road transport contractors, and restructured its operation of contracted transport. In order to have only one fraction of the contractors, in relation to what the company had before, a great variety of techniques of analysis for carriers was used. Techniques such as electronic negotiation by Internet, and a multi-criteria decision method developed by the company. Each of these stages was reviewed and compared with the academic bibliography that corresponded. This made possible the comparison of models only written in the bibliography relating their practical application. The results show that the case studied, besides having managed to reach its objective, is a case of success, bringing valuable contributions to the academic bibliography.

This thesis is concerned with problematics of multi-criteria decision making, especially method DEMATEL, its modifications and combinations with another methods. There is description of particular steps of this methods and selected theory from various areas, which is used in these methods. In every chapter we can find theoretical explanation of these methods, description of their steps and afterwards these theoretical findings are applied on numerical example. Firstly, the crucial method is introduced. Then this thesis is concerned with its adjustments based, on different approaches, which are often used not only in decision making. In the end, all these findings are aggregated and new method is founded.

The thesis is concerned with Multi-Criteria Decision Making, in particular the Analytic Network Process method. The introductory part is dedicated to compile all the theory necessary to understand the method and utilized throughout the paper. The Analytic Hierarchy Process method is described and later generalized in the form of the ANP. Part of the paper is a description of available software products that are able to solve the ANP models. The main focus is on the application of the method, the usability and efficiency of possible use in macroeconomics is tested. In the third chapter a macroeconomic forecasting model is developed in cooperation with experts. The results of this model are compared with the best available up-to-date forecasts by local and international institutions.

In today's world there are many different substitutes for most products and services, increasing the demands on decision-making among substitutes. In order to make a decision, it may be very helpful to use multi-criterial methods for evaluating of the options, which are available to the general public through special programs. Thank to these programs, the general public does not have to be informed in detail about multi-criterial methods and can use the convenience of multi-criteria analysis. The aim of this thesis is to describe and compare the publicly available noncommercial czech software that allows the simplification of choice when choosing from several options according to specified criteria. The thesis work is focused on discrete models of evaluation that are simpler and more suitable for pre-defined alternatives. Non-commercial programs, many of which were created at universities, are evaluated in this thesis. Furthermore, some very well-known evaluation methods, which appear in some programs, are presented.

The topic of these Thesis is the use of the multi-criteria methods at budgeting the expenditure side of the state budget. The first chapter of the thesis describes in detail the ex ante analysis as a support tool for decisions on public expenditure and also the economy, efficiency and effectiveness as the criteria for the ex ante and ex post analysis of the public expenditure of the state budget. Furthermore, I describe here analysis of decision making, specifically the individual elements and the structure of decision-making process.The second chapter focuses on various methods of quantification of the weight of the criteria and the methods of multi-criterial decision. In the third, final chapter, I apply the methods described in second chapter to a specific example.

Within the last decade, wind power has faced a strong expansion in Sweden, supported by national policies. However, when wind power projects are to be developed, a series of legal difficulties, opposing land-use interests and resistance often arise, hindering their implementation on a local level. To bypass such difficulties, the Swedish government has invited municipalities to localise suitable areas for wind power development in their comprehensive plans. By adopting this proactive approach, different interests and views can be implemented in an early stage of the planning process, possibly reducing the risk of land-use issues and local resistance.The Municipality of Kiruna is currently updating its comprehensive plan and wind power is among the planning issues to be further investigated. Therefore, this thesis aims to combine GIS and multi-criteria decision making to support wind power spatial planning in Kiruna Municipality by exploring environmental, economic and social constraints and criteria under different planning scenariosTherefore, a spatial multi-criteria decision analysis is implemented to promote wind power localisation and at the same time, to prevent possible detrimental consequences. Swedish legislation, guidelines issued by national agencies and wind power planning practices are implemented to delimit areas feasible or unfeasible for wind power development. Then, the localisation process within feasible areas is guided by a set of social, economic and environmental criteria reflecting land-use interests typical of Kiruna Municipality. Weights, steering the relevance of the different criteria in the process, are then developed on the basis of three planning scenarios of future development for the Nordic Arctic.The results of the analysis show that approximately 90% of the territory of Kiruna Municipality is not feasible for wind power development. In particular, low wind speeds and areas of interest for defence are constraints excluding large portions of the municipal territory. Among the feasible areas, it is particularly complex to identify locations which are not located within areas of interest for reindeer herding or national interest for undisturbed mountainous environment and that have an adequate distance from existing electric grids. Nevertheless, the planning scenarios pinpoint suitable locations for wind power development in northeastern Kiruna, in proximity of Karesuando.