Fuzzy Multi-Criteria Assessment of Dwelling’s Sustainability

Abstract

The thesis focuses on application of Game Theory and Fuzzy Sets and the SAW-G multi-criteria decision making methods for problems solution in civil engineering tasks. The main objects of research include the assessment of dwellings in uncertain environment and application of Fuzzy Game Theory for decision making in civil engineering tasks, such as choosing the best alternative in heating systems, or building renovation alternative, considering sustainability goals. As a case study for the most widely used dwellings: traditional brick house, blockhouse, wood frame house SAW-G method is applied, and for traditional one flat dwelling house and loft type apartment Fuzzy Game Theory is applied. The dissertation consists of introduction, 3 chapters, general conclu-sions, references and authors publications. The Introduction part reveals the investigated problem, importance of the thesis and the object of the research. There is also described a purpose and tasks of the paper, research methodology, scientific novelty, the practical significance of results, examined in the paper, and presented the de-fended statements. The introduction ends in presenting the author’s publications on the subject of the defended dissertation, offering the material of made presentations in conferences and defining the structure of the dissertation. Chapter 1 presents a literature review about the investigations, where the decision making in civil engineering is linked with the sustainability and with the reference to the provided information, the conclusions are developed. Chapter 2 presents the decision model of multi-criteria tasks and de-scribes the sets of criteria. Here the multi-criteria methodology, which will be applied later in the case study’s calculations, is examined: SAW-G, Game Theory, Fuzzy Sets, Fuzzy Games. Chapter 3 investigates the case studies, adopting the referred methodology for the decision making in presented tasks. At the end of each case study the results and conclusions are presented. The general conclusions are presented at the end after all chapters. 6 articles focusing on the subject and discussed in dissertation are published: two of them – in scientific journals, included in Thomson ISI list (Medineckiene et al. 2010a; Medineckiene et al. 2011a); one of the journals is in science information institute’s data base „ISI Proceed-ings“(Medineckiene et al. 2011b); another one – in other international data base editions (Medineckiene and Kracka 2011); two of the journals – in other reviewed scientific journals, conference presentation material (Pelds-hus et al. 2010; Medineckiene et al. 2010b). 6 presentations on the subject have been given in conferences at national and international level.