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.
Results
Showing 1 to 20 of 137 for “"Large scale systems"”.
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Resource Management in Large-scale Systems
… focus of this thesis is resource management in large-scale systems. Our primary concerns are energy management and practical principles for self-organization and self-management. The main contributions of our work are: 1. Models. We proposed several models for different aspects of resource …
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Storage management for large scale systems
… management is crucial to the performance of many large scale computer systems. This thesis studies performance issues in buffer cache management and disk layout management, two important components of storage management. The buffer cache stores popular disk pages in memory to speed up the access …
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Process Monitoring of Large Scale Systems
… processes are highly complex and operate with a large number of variables under closed loop control. Plant engineers and operators are unable to effectively detect and diagnose faults for these large scale systems using traditional process monitoring methods. However, by developing measures that …
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Approximate dynamic programming for large scale systems
Sequential decision making under uncertainty is at the heart of a wide variety of practical problems. These problems can be cast as dynamic programs and the optimal value function can be computed by solving Bellman's equation. However, this approach is limited in its applicability. As the number of …
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Hardware Memory Compression for Large-scale Systems
… focuses on hardware memory compression for large-scale systems. In general, large-scale systems have unique properties: (1) applications are more demanding on address translation, (2) many users execute workloads requesting different amounts of memory concurrently, and (3) these systems have …
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Mathematical algorithms for optimisation of large scale systems
… with the problem of optimisation of steady state large scale systems using mathematical models. Algorithms for on-line optimisation of interconnected industrial processes are investigated. The research is concerned with two different kinds of algorithms which are based on the structure of the …
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Fault Detection and Diagnosis for Large -Scale Systems
Implementing an effective process monitoring algorithm is essential in minimizing downtime, increasing the safety of plant operations, and reducing manufacturing costs. Data-driven techniques based on multivariate statistics such as principal component analysis and partial least squares have been …
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Probabilistic Modeling and Verification of Large Scale Systems
Many large scale systems have a stochastic behavior. Such stochastic behavior is the result of the randomness in the systems' operating environments. It can also be the result of the use of randomized protocols that are used to reduce the need for costly synchronization. We abstract a system state …
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On the decentralized control of large-scale systems.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1973. Ph.D.
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Organizational memory management for large-scale systems development
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1994.
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Languages and Tools for Optimization of Large-Scale Systems
… means of Monte-Carlo simulation. In many control systems, it is necessary to consider interaction with a user. In this thesis, a manual control scheme for an unstable inverted pendulum system, where the inputs are bounded, is presented. The proposed controller is based on the notion of …
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The design of decentralised controllers for large scale systems
… of decentralised controller design to large scale systems allows established CAD methods to be implemented easily and efficiently. When the control engineer designs a distributed controller the system is divided up into a number of subsystems and a controller designed for each …
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H2, fixed architecture, control design for large scale systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1990.
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Decentralized sliding mode control and estimation for large-scale systems
… decentralised robust control and estimation for large scale systems (LSSs) using robust sliding mode control (SMC) and sliding mode observers (SMO) theory based on a linear matrix inequality (LMI) approach. A complete theory of decentralized first order sliding mode theory is developed. The main …
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Determining the likelihood of un-controllability in large scale systems
Large-scale dynamical systems are of interest due to their broad applications in various areas, such as physiological systems, gene networks, large-scale energy systems, robot motions, multiple space air, and buildings. In such systems there are a large number of interconnected systems whose …
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Multimodel Design of Large Scale Systems With Multiple Decision Makers
The central theme of this thesis is multimodeling. It is concerned with modeling and control strategy interaction in a multimodel context. Realistic situations are studied, which allow the decision makers to use different simplified models of the system. Three different approaches to multimodeling …
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Control and estimation for large-scale systems having spatial symmetry
Thesis. 1978. Ph.D.--Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
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On-line distributed hierarchical control and optimisation of large scale systems
… on-line steady state optimisation and control of large scale systems using a micro-computer based system. A two-level hierarchical computer structure consisting of a coordinator at the supremal (upper) level and two local decision units at the infimal (lower) level had been established. Parallel …
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