Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"Fuzzy System"”.
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Control of nonlinear systems using Sugeno fuzzy approximators
… deals with the issue of controlling nonlinear systems by integrating available classical as well as modern tools such as fuzzy logic and neural networks. The proposed approaches throughout this thesis are based on the well known first-order Sugeno fuzzy system. To achieve a better understanding …
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Towards Structural Health Monitoring of Gossamer Structures Using Conductive Polymer Nanocomposite Sensors
… as strain sensors. Any health monitoring system works on the principle of sensing the response (strain, acceleration etc.) of the structure to an external excitation and analyzing the response to find out the location and the extent of the damage in the structure. A sensor network, a …
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Pavement Friction Management (PFM) - A Step Toward Zero Fatalities
… monitor the pavement friction periodically and systematically to support their safety management programs. The collected data can help implement preservation policies that improve the safety of the roadway network and decrease the number of skidding-related crashes. This dissertation introduces …
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Boundary conditioning concept applied to the synthesis of microsystems using fuzzy logic approach
The burgeoning field of MicroSystems Technology (MST) has a tremendous potential for sensing and actuation of industrial systems in almost every field of human interest. This thesis proposes a synthesis of microsystems in order to explore the advantage of miniaturization by developing a technology …
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Fuzzy Filters for depth map smoothing
… of that noise using nonlinear filters based on fuzzy systems.<br/><br/>The depth from stereo algorithm is reviewed and a widely used correlation based matcher, the Sum Squared Difference (SSD) matcher, is introduced together with an established method of measuring sub-pixel disparities in stereo …
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Support Vector Machine-based Fuzzy Systems for Quantitative Prediction of Peptide Binding Affinity
… real-value predictive models through the use of fuzzy systems. A non-linear system is proposed with the aid of support vector-based regression to improve the fuzzy system and applied to the real value prediction of degree of peptide binding. This research study introduced two novel methods to …
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Fuzzy logic for task space telemanipulation of a five fingered robotic hand
This work presents a fuzzy logic based HandyMan (Hand gesture commands for grasping and manipulation) system to recognize the operator's hand gestures during task space telemanipulation. A combination of joint positions may be shared between at least two manipulation gestures. To avoid …
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An Adaptive Educational Game To Help Students Learn How To Solve Systems Of Linear Equations
… domain of linear algebra, particularly solving a system of linear equations. Matrix is an adaptive educational game that uses intelligent tutoring modules to guide the student's learning process and provide feedback based on the student's performance. These modules are domain module, student …
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Type-2 Fuzzy Logic based Systems for Adaptive Learning and Teaching within Intelligent E-Learning Environments
… that incorporate adaptive learning and teaching systems that enable the creation of adaptive learning environments to suit individual student needs. The efficiency of these adaptive educational systems relies on the methodology used to accurately gather and examine information pertaining to the …
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Applying fuzzy logic to stock price prediction
The major concern of this study is to develop a system that can predict future prices in the stock markets by taking samples of past prices. Stock markets are complex. Their dramatic movements, and unexpected booms and crashes, dull all traditional tools. This study attempts to resolve such …
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Ultrasonic Real-Time Quality Monitoring Of Aluminum Spot Weld Process
The real-time ultrasonic spot weld monitoring system, introduced by our research group, has been designed for the unsupervised quality characterization of the spot welding process. It comprises the ultrasonic transducer (probe) built into one of the welding electrodes and an electronics hardware …
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Hybrid fuzzy-proportionl integral derivative controller (F-PID-C) for control of speed brushless direct current motor (BLDCM)
Hybrid Fuzzy proportional-integral-derivative (PID) controllers (F-PID-C) is designed and analyzed for controlling speed of brushless DC (BLDC) motor. A simulation investigation of the controller for controlling the speed of BLDC motors is performed to beat the presence of nonlinearities and …
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Hybrid fuzzy- proportionl integral derivative controller (F-PID-C) for control of speed brushless direct curren motor (BLDCM)
Hybrid Fuzzy proportional-integral-derivative (PID) controllers (F-PID-C) is designed and analyzed for controlling speed of brushless DC (BLDC) motor. A simulation investigation of the controller for controlling the speed of BLDC motors is performed to beat the presence of nonlinearities and …
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Design and analysis of fuzzy systems supported by social network analysis techniques
… and development of a new methodology for fuzzy system comprehensibility analysis based on fuzzy systems' inference maps, so-called fuzzy inference-grams, Fingrams in short. Fingrams show graphically fuzzy rule-based systems, presenting the interaction between rules at the inference level …
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Type-2 Fuzzy Probabilistic System for Proactive Monitoring of Uncertain Data-intensive Seasonal Time Series
This research realises a type-2 fuzzy probabilistic system for proactive monitoring of uncertain data-intensive time series in both theoretical and practical implications. In this thesis, a new form of representation, J-plane, is proposed for concave and un-normalized type-2 events as well as …
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Investigation into the creation of an ambient intelligent physiology measurement environment to facilitate modelling of the human wellbeing
… better understand the human wellbeing.<br/>The system developed aims to provide evidence that a level of automated care is both possible and practical. This care is for those with chronic physical or mental disabilities who have difficulty in their interactions with standardised living spaces. …
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Soft Computing-based Life-Cycle Cost Analysis Tools for Transportation Infrastructure Management
… made the task of maintaining the infrastructure systems more challenging than ever before. Life-cycle cost analysis (LCCA) is an important tool for transportation infrastructure management, which is used extensively to support project level decisions, and is increasingly being applied to enhance …
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An object-based analysis of cloud motion from sequences of METEOSAT satellite data
… of the cloud content in the imagery using a fuzzy system. It then proposes tracking clouds as flexible structures to analyse the motion of the clouds themselves, and using the nature of cloud edges to identify the atmospheric flow around the structures.<br/><br/>To produce stable structural …
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A context-aware method for verifying user identity in pervasive computing environments
… user identity is a crucial element of any system to avoid potential identity attacks. Selecting an appropriate verification method impacts on the system’s overall behaviour since it is a trade-off between security and usability. It is even more significant when that system is situated in a …
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Design Optimization of Fuzzy Logic Systems
Fuzzy logic systems are widely used for control, system identification, and pattern recognition problems. In order to maximize their performance, it is often necessary to undertake a design optimization process in which the adjustable parameters defining a particular fuzzy system are tuned to …
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