Loading...
Search for:
decision-making
0.013 seconds
Total 568 records
Improving the Decision-Making Process under the Presence of Uncertainty in Airplane Conceptual Design, Creating an Intuitive Platform
, M.Sc. Thesis Sharif University of Technology ; Banazadeh, Afshin (Supervisor)
Abstract
Improving performance and reducing costs is a constant competition between aircraft designers, which has made multi-disciplinary optimization always part of the design process. In the design process of a conventional aircraft, there are various uncertainties in technology levels, mission parameters, costs and operating environment. It is clear that these uncertainties will make the decision-making difficult and lead to uncertainties in the output of the design; on the other hand, considering them will increase the computational cost. Understanding how much the uncertainty of each parameter will affect the overall output of the design and its performance, makes it possible to ignore the...
Development of Airport Capacity Management Model Based on Decision Support System
, M.Sc. Thesis Sharif University of Technology ; Pourtakdoust, Hossein (Supervisor)
Abstract
Airports are one of the most important elements of the aviation system that provide the ground infrastructure that is required for enabling or flight across the globe. Master Planning is currently the dominant approach to airport strategic planning. However, history shows that this approach can often result in costly mistakes. Because there are many stakeholders with conflicting objectives, deep uncertainty about the future, and many potential strategies, planners often narrow their scope by using a single forecast for the future, leaving out alternative strategies, and excluding stakeholders, resulting in a Master Plan that quickly becomes obsolete and may be opposed by some stakeholders....
A New Approach to Employ Fuzzy Logic for Airport Expansion
, M.Sc. Thesis Sharif University of Technology ; Malaek, Mohammad Bagher (Supervisor)
Abstract
Airports are critical connectors in the air transportation operational system. In order to meet their operational, economic and social obligations in a very volatile environment, airports need to embrace change rather than resist it. Long-term airport planning has become a complex issue due to the constant growth in air traffic demand. In this context, the thesis puts forward an innovative approach to planning and decision making for various component of airport.in this has been used fuzzy logic decision making method to develop airport in all respect in order to plan balanced growth. Top airports are successful experience in airport expansion planning which can be pattern for other airports...
An Emotion-Based Intelligent Guidance Planning for a Flapping Vehicle
, M.Sc. Thesis Sharif University of Technology ; Pourtakdoust, Hossein (Supervisor)
Abstract
In this research, an emotion-based intelligent guidance planning for a flapping vehicle is proposed. It utilizes different sciences including artificial intelligence, neural, fuzzy and psychology accompanied by flight dynamics and modeling. The proposed system enables the robot to make emotion, learn and make decision based on its given personality. The decision making is related to the path planning and how moving from the current position to the designed one. In other words, the robot, at each moment, knows what to do and how to do. Therefore, guidance commands of the flying robot are as outputs of the system. In the present research, the control system is assumed ideal. The introduced...
Decision Matrix for a Safe Aerial Launch Release Mechanism
, M.Sc. Thesis Sharif University of Technology ; Malaek, Mohammad Bagher (Supervisor)
Abstract
The case of rapid small satellite aerial launch by mother airplane has various applications; such as space experiment, weather monitoring, and getting information from the earth monitoring during natural disasters. In this method, the satellite and the launch vehicle will be carried up by mother airplane to the definite height; then, the launch vehicle will be released and flied - to the insert of satellite into the desired orbit. Aerial launch system success depends on a set of complex elements and their interactions. In the present study, first of all, the element interactions will be investigated by system engineering approach based on operational scenarios; then, a new approach for...
Iteration Control in Design Process
, Ph.D. Dissertation Sharif University of Technology ; Malaek, Mohammad Bagher (Supervisor)
Abstract
The main goal of this research is to reduce aircraft design cycle period, by reducing the necessary number of design cycle iterations. The Design cycle period is one of the main characteristics of the design process and design cycle iterations play a major role in the design cycle period. To achieve the above mentioned goal, we present a mathematical model of iterations for the aircraft design process. This model describes the design coupled tasks as a discrete-linear time invariant dynamic system. This model also helps identify tasks which are the most important for generating iterations. This new method basically helps break information cycles that create iterations among important tasks....
A Model using Interval-Based Multi-Criteria Decision-Making for Assessing Blockchain-Iot Technology in Supply Chain Systems
,
M.Sc. Thesis
Sharif University of Technology
;
Khalili Nasr, Arash
(Supervisor)
Abstract
Supply Chain (SC) systems stand at the cusp of a transformative era, thanks to the synergistic integration of Blockchain Technology (BT) and the Internet of Things (IoT). This confluence promises a plethora of benefits, encompassing heightened data protection, unparalleled transparency, robust fraud prevention mechanisms, meticulous traceability, and substantial financial efficiencies. However, the technological landscape is still in its embryonic phase, leading to a pronounced knowledge void and a palpable uncertainty in the realm of platform selection for SC systems. The challenge is further compounded by the intricate web of criteria, often with overlapping and interdependent facets....
Paradox Analysis of Collective Decision Making and Authority in Universities: A Case Study of Sharif University of Technology
, M.Sc. Thesis Sharif University of Technology ; Arasti, Mohammad Reza (Supervisor) ; Talebian, Masoud (Supervisor)
Abstract
Planning as one of the most important management tasks in all organizations is necessary and essential. Strategic planning is at the top of every organization’s decision-making, and it is important and crucial. Universities like other organizations cannot survive or thrive without a clear strategy. This study has done considering the importance of planning in universities and higher education institutions and discussing one of the challenges in this field. This challenge is analyzing the paradox of top-down planning and collective decision-making and the authority of faculty members in universities. It is an exploration research with the qualitative method and according to a case study of...
The Effect of Wages on the Intensity of Child Labor
, M.Sc. Thesis Sharif University of Technology ; Keshavarz Hadad, Gholamreza (Supervisor) ; Fatemi Ardestani, Farshad (Supervisor)
Abstract
In this study, the intensity of child labor has been investigated by modeling household behavior in a framework of collective decision-making on resource allocation, and for this purpose, a household utility maximization problem has been used in which child’s and parents’ wages, non-working incomes, education level for bargaining power as well as several variables at the social level such as unemployment rate, divorce rate and Gini coefficient have been used to reflect labor market conditions. In this study, the structure of equations for girls and boys in urban and rural areas has been estimated by using raw household budget data for 2015 in Iran and multivariate Tobit technique. Findings...
Examining Factors Influencing Top Managers' Decisions about Conducting Strategic Planning: a Case Study in Two Iranian Companies
, M.Sc. Thesis Sharif University of Technology ; Alavi, Babak (Supervisor) ; Arasti, Mohammad Reza (Co-Advisor)
Abstract
Despite the profound impact of formal strategic planning on the performance of companies, there have been a few researches on the factors that influence the starting phase of strategic planning process. This research tries to identify these factors and clarify the decision process of conducting strategic planning. In other words, the main purpose of this study is to identify the rationales of companies for initiation of strategic planning. Regarding limited previous studies on this topic, especially about the decision process about conducting strategic planning in Iranian companies, the case study methodology is used. The study is conducted in two phases. In the first phase, five companies...
A New Approach to Loss Aversion in Repeated Gambles
, M.Sc. Thesis Sharif University of Technology ; Zamani, Shiva (Supervisor)
Abstract
After introducing “Prosopect Theory” by Kahneman and Tversky in 1979, it is mostly used as an alternative to expected utility theory in order to study human decision making under risky situatutions. Loss aversion has been considered as an important aspect of this theory. In this study, we review loss aversion and the effects of education and gender on it. Finally, we study the effect of repeating a gamble on its participants’ loss aversions. The results show that education and gender have direct effects on loss aversion and repeating a gamble can decrease loss aversion of participants.
Deriving a Model for Determining the Relative Utility of Residential Apartments for Private Buyers
, M.Sc. Thesis Sharif University of Technology ; Isaei, Mohammad Taghi (Supervisor)
Abstract
In this research, the aim is to find the factors that can influence on the utility perception of both private buyers and experts. What's more, the share of each factor on the overall utility is derived by the use of AHP technique. The next step is to derive a model that contain all the factors seen by private and inexpert buyers., and their relative weight. At the next step, the aime is to complete the model by adding the factors not seen by all private buyers, but advised by residential apartment experts and their relative weight. The model should be able to rank different residential apartments, when the value of each factor is given for each ot the apartments.
Career Decision Making Among Software Engineers: A Bounded Rationality perspective
, M.Sc. Thesis Sharif University of Technology ; Alavi, Babak (Supervisor)
Abstract
A qualitative study has been conducted in order to identify evidence of bounded rationality in software engineers' career decision making. Tversky and Kahneman's heuristics and biases approach has been used as a theoretical framework of the study. The theoretical framework comprised four decision-making and judgment heuristics, i.e. availability, representativeness, anchoring and adjustment, and affect heuristic. The data were gathered through semi-structured interviews and analyzed using thematic analysis method. The final results revealed that software engineers did make use of heuristics in making career decisions. Several incidents of the use of availability, representativeness, and...
Measuring a Bank's BI Readiness
, M.Sc. Thesis Sharif University of Technology ; Kermanshah, Ali (Supervisor)
Abstract
Business Intelligence (BI) became a new trend in IT applications and the organization's request for it, has notably increased. BI helps organization for better decision making. It means appropriate and correct information for appropriate person at the suitable time and in the suitable format. The key point is that only buying a BI Application doesn't mean a successful BI Implementation. The organizations should know their needs and prerequisites for implementing these applications. Strategic alignment, information usage culture and technical readiness are a bit of these prerequisites. Banks are one of the industries that use IT as a heart in their business. Some of these banks create...
Developing a Decision Support System for Generation Expansion Policy Making in Iranian Deregulated Electricity Market
, M.Sc. Thesis Sharif University of Technology ; Kermanshah, Ali (Supervisor) ; Bahramgiri, Mohsen (Supervisor)
Abstract
Iranian Power industry has undergone fundamental changes since deregulation started in 2003. Currently, bulk trade of electricity in the industry is mainly conducted through a day ahead wholesale market, representing over 98 percent of the exchange of electricity within the grid. Although the current market regime is under operation for over 4 years, several political, cultural and operational obstacles have hindered effective evolution of the restructuring process. Low political support from privatization of the industry assets backed by lack of confidence and trust in market economies in general, and low economic incentive of the market players has slowed down formation of an effective...
An Analysis of Key Factors Contributing to Residential Property Valuation in Iran
,
M.Sc. Thesis
Sharif University of Technology
;
Sharbatoghlie, Ahmad
(Supervisor)
Abstract
It is our purpose in this study to compare and analyze behavioral aspects of residential property valuation in Iran. More specifically, this research aims to explore the attributes that influence the value of residential property from the consumers’ and valuers’ perspective to determine whether valuers account for consumer behavior accurately. Finally, we investigate which variables operate at the lower end of the market, as distinct from those influencing the value of higher priced property. The core methodology underpinning the measurement of buyer and valuer behavior is the use of survey analysis. The identification of variables employing a two stage process forms an initial but critical...
A Framework for Price Negotiations in Presence of Alternative Options
, M.Sc. Thesis Sharif University of Technology ; Sheikhzadeh, Mehdi (Supervisor)
Abstract
The present research investigates the conjunction of two areas of pricing and negotiation techniques to find a relationship between price and other key factors such as quality, quantity, time, etc. and observe the overall effect of these factors on how to design and implement negotiations over price in B2B environment. The research presents a model to describe the process of negotiation and applies quantitative methods to rank negotiable scenarios. This set of scenarios, then is sorted in a triangular model of negotiation strategy and is used as a roadmap for negotiation. Furthermore, researcher evaluates effective tactics and their implementation to drive negotiation sessions based on...
Neurocomputational Modeling of the Dual-Process Theory of Decision Making and Its Implication for Public Policy Making
, M.Sc. Thesis Sharif University of Technology ; Ghaninejad, Moussa (Supervisor)
Abstract
Supported by a rich literature in psychology and neuroscience, the dual-process theory of decision making assumes that individuals’ decisions are made through arbitration between habitual and goal-directed processes within their minds. Whereas the goal-directed system makes decisions after deliberating all positive and negative consequences of each feasible choice, the habitual system make choices based on the habits formed in previous experiences. Although the decisions of the goal-directed system are always more optimal that those of the habitual system, but due to that fact that the goal-directed system is slow, effortful and time-consuming, it is sometimes more efficient to make...
Stocks Market Trading Strategy Recommendation Using Experts’ Opinion Aggregation
, M.Sc. Thesis Sharif University of Technology ; Fazli, Mohammad Amin (Supervisor)
Abstract
Investors highly value the ability to predict the behavior of the capital market. Over time, various methods have been introduced to forecast the future of this market and anticipate its movements. A novel approach to achieving this is by developing data-driven decision support systems that can assist investors in making informed trading decisions. The opinions of experts play a crucial role in shaping people's perception of the market, which ultimately affects its final behavior. In this study, we have created a decision support system that can help investors by considering the complexities and meaningful relationships between different aspects of the problem. We have developed frameworks...
Language-informed Sequential Decision-making
, M.Sc. Thesis Sharif University of Technology ; Soleymani Baghshah, Mahdieh (Supervisor)
Abstract
Sample efficiency and systematic generalization are two long-standing challenges in sequential decision-making problems, especially, in reinforcement learning settings. It is hypothesized that involving natural language in conjunction with other observation modalities in decision-making environments can improve generalization due to its compositional and open-ended nature, and sample efficiency due to the concise information summarized in relatively short linguistic units. By exploiting this information and the compositional structure of the language, one can achieve an abstract and factored understanding of the environment and the task at hand. To do so, it is necessary to find the proper...