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 57 for “"Information Theoretic Approach"”.
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An information theoretic approach to veridical hallucination
… derive from a branch of signal theory, called Information Theory. Information Theory is a formal calculus for quantifying and computing the information content of a source or a signal carrying information about a source. It is an attempt to formalize an intuitive notion of information that we …
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An information-theoretic approach to interest matching
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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An information theoretic approach to EEG-fMRI integration
… functional brain imaging data based on information theory is proposed. As a proof of principle, the framework, which was originally developed in the study of neuronal population codes, is applied in the experimental context of visually evoked responses and the neural underpinnings of …
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An information-theoretic approach to estimating risk premia
Evaluation of linear factor models in asset pricing requires estimation of two unknown quantities: the factor loadings and the factor risk premia. Using relative entropy minimization, this paper estimates factor risk premia with only no-arbitrage economic assumptions and without needing to estimate …
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Discovering phonemic base forms automatically : an information theoretic approach
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1983.
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Information theoretic approach for assessing image fidelity in photon-counting imagers
… conditions. In this work we present an information-theoretic model for the photon-counting imaging (PCI) method, thereby providing a rigorous foundation for the merits of PCI in terms of image fidelity. This can facilitate our understanding of the demonstrated success of photon-counting …
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Acoustic Feature Design for Speech Recognition, a Statistical Information-Theoretic Approach
… of the LDA projection matrix is a maximum mutual information estimation problem in the lower-dimensional space with some constraints on the model of the joint conditional and unconditional PDFs of the features, and then, by relaxing these constraints, we develop a dimensionality reduction approach …
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Scalable fault management architecture for dynamic optical networks : an information-theoretic approach
… In this thesis, we propose new fault-diagnosis approaches specifically tailored to all-optical networks, with an objective of keeping the diagnostic capital expenditure and the diagnostic operation effort low. Instead of the aforementioned passive monitoring paradigm based on parity checks, we …
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Information -Theoretic Approach to Deformable Image Transformations With Application to Brain Image Segmentation
This method has been experimentally validated using synthetic, magnetic resonance, and cryosection images. It is also incorporated into a brain image segmentation method under development at the University of Illinois. Potential applications include image segmentation, functional brain mapping, and …
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Performance analysis of iris based recognition system at the matching score level
… on a small testing database available, using information theoretic approach.;In this work, we consider a practical setting where only matching scores are accessible for collecting data. We assume that multiple scans from the same iris are available. (Abstract shortened by UMI.).
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An information theoretic study of reduced-complexity receivers for intersymbol interference channels
… uncoded systems, this thesis takes a different approach to the problem. We adopt an information theoretic approach and study the rates that are achievable in the Shannon sense over the true channel with the given, possibly sub-optimal, decoding rule. One can establish that, under such mismatch …
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Survival and space use of riparian muskrats (Ondatra zibethicus) within an agroecosystem
… ditches throughout the Midwest. However, information regarding space use and survival of muskrats in these highly altered habitats is lacking. I examined predation risk, survival, home ranges, and space use of muskrats within small streams and agricultural ditches in a human-dominated …
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Patterns, maintenance and the evolution of behavioral variation and covariance: the presence of personalities in kangaroo rats
… I used a structural equation modeling and information-theoretic approach to demonstrate that D. merriami exhibits personality structure between behaviors measured in the laboratory. I evaluated the mechanisms that may maintain variation between and within populations of D. merriami and …
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Eukaryotic RNA Polymerase II start site detection using artificial neural networks
… with features that were selected using an information-theoretic approach. Firstly an introduction is given where the problem is described briefly. Some background is given about the biological and genetic principles involved in DNA, RNA and Promoter detection. The automation process is …
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Mobility modeling and management for next generation wireless networks
… model motion patterns, predict trajectories, get information on mobiles' whereabouts and to make use of this information in handoff, routing, location management, resource allocation and other functions. In the literature, the speed of mobile is often and misleadingly referred to as the level of …
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Harnessing Sparse and Low-Dimensional Structures for Robust Clustering of Imagery Data
… data from multiple quadratic manifolds, and an information-theoretic approach for data from multiple linear subspaces. Our techniques draw from many diverse areas, including lossy data compression, sparse representation, algebraic geometry, and robust statistics. We verify the efficacy of our …
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Spatio-temporal fMRI signal analysis using information theory
… human brain physiology. In previous work a novel information-theoretic approach was introduced for calculating the activation map for JMRI analysis [Tsai et al , 1999]. In that work the use of mutual information as a measure of activation resulted in a nonparametric calculation of the activation …
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Adaptive Communication Interfaces for Human-Robot Collaboration
… auditory, visual, or haptic interfaces to convey information to human collaborators. The way these interfaces select signals typically depends on the task that the human is trying to complete: for instance, a haptic wristband may vibrate when the human is moving quickly and stop when the user is …
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Selection of Spawning Habitats by Horseshoe Crabs (Limulus polyphemus) along the Complex Connecticut Coast
… traits using remote sensing and geographic information system technologies. Data layers representing the coastal area were created within which slope, wave exposure, substrate type, and distance from offshore aggregations of crabs were summarized for the western, central, and eastern regions …
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Computer-based decision-support methods for hydrological ecosystem services management
… (SWMM). This dissertation first develops an information theoretic approach to global sensitivity analysis for distributed models, demonstrated using SWAT, and later uses the sensitive model parameters in a multi-objective automatic calibration scheme using multi-objective particle swarm …
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