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 70 for “"scale free"”.
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Scale-free information systems networks
Many real, complex networks have been shown to be scale-free. Scale-free in networks mean that their degree distribution is independent of the network size, have short path lengths and are highly clustered. We identify the qualities of scale-free networks, and discuss the mathematical derivations …
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Dual Layer Scale Free Network Topology Synthesis
… generation. Additionally, we analyze the large-scale characteristics of sampled Internet topology data sets and observe that in addition to the commonly analyzed node degree distribution, the subnet size and the router interface distributions exhibit power-law characteristics. Based on findings …
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Scale free information retrieval : visually searching and navigating the web
Thesis (M.S.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, 1998.
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Scale-Free Networks in Molecular Biology: Algorithms and Random Walks Analyses
… on I) the mean field analysis of algorithms for scale-free networks in molecular biology and II) the analysis of biological networks using random walks and related algorithms. I: Many systems in nature and society are described by means of complex networks. Research indicates that these complex …
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A scale-free analysis of magnetic holes in the solar wind
… magnetic field (IMF) strength on timescales of several seconds to several hours. These intervals have been seen as often as several times per day in the ecliptic and at high heliospheric latitudes from 1 AU to 5.4 AU. We present a scale-free statistical technique for identifying …
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Effects Of Large-Scale Free Stream Turbulence On A Turbulent Boundary Layer
… in which there are systematic variations of free stream turbulence above a flat plate boundary layer are presented. Upstream of the plate, an active grid generates free stream turbulence varying in intensity from 0.25% to 10.5%. The momentum thickness Reynolds number of the boundary layer …
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The early history and emergence of molecular functions and modular scale-free network behavior
The formation of protein structural domains requires that biochemical functions, defined by conserved amino acid sequence motifs, be embedded into a structural scaffold. Here we trace domain history onto a bipartite network of elementary functional loop (EFL) sequences and domain structures defined …
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Scalability of the air transportation system and development of multi-airport systems : a worldwide perspective
… concerns that in the future the system will not scale to meet demand. This situation will result in the generation and the propagation of delays throughout the system, impacting passengers' quality of travel and more broadly the economy. This thesis proposes the investigation of the mechanisms by …
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Resource Management in Large-scale Systems
… 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 management, …
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Graph-theoretic Approach To Modeling Propagation And Control Of Network Worms
… solution aimed at controling large-scale worm propagation. The aim of this work is fivefold: (1) Developing an accurate combinatorial model of worm propagation that can facilitate the analysis of worm control strategies, (2) Building an accurate epidemiological model for the …
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A new triggering mechanism of the boiling crisis based on the percolation theory and its implication
… that boiling crisis is triggered by a macroscale hydrodynamics instability in the far-field liquid-vapor flows. However, there is a growing consensus that the boiling crisis is a near-wall phenomenon. In summary, while the boiling crisis has been studied for almost a century, there is still …
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Large graph simplification, clustering and visualization
… and visualization of two kinds of graph, scale-free network and rooted hierarchy, at large scales with thousands to millions of nodes. Scale-free network, whose node degree distribution follows a power-law function, often arises in sociology, financial analysis, and the sciences. Such …
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Estimating network structure and propagation dynamics for an infectious disease : towards effective vaccine allocation
… and show that the best-fit model, among a scale-free network and a small-world network, indicates the scale-free network. Given the knowledge of the network structure we evaluate different vaccination strategies. As a benchmark, we allow the vaccination decisions to depend on the state of …
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Structures, processes, and clustering of complex networks
… to the new physics of complex networks (scale-free degree distribution, small worlds, etc.), and ethical considerations about the protection of data about people, three different aspects of and on complex networks are presented, each of which formed the topic of a paper. In the first …
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Managing Agent Sampling Probabilities in Irregular Networks
… Such networks are often modeled by small-world, scale-free, minimum-distance, or random (SFMR) graphs. If agents randomly wander nodes, then the irregularity found in these types of graphs gives rise to some nodes being visited more often than others. Assuming the system requires agents to …
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Nonlinear dynamics in complex networks and modeling human dynamics
… der Synchronisation von small-world und scale-free Netze verbessert werden. Im zweiten Teil geht um die Verstärkung der Robustheit der scale-free Netze im Zusammenhang mit der Gemeinden-Struktur. Einige Reaktionsmuster und topologische Gemeinden sind einheitlich. Die Ergebnisse zeigen …
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Development of Machine Learning Models to Detect Dynamic Disturbances in Human Gait
… of nonlinear controlled oscillators. The scale-free network of orbits is a quantitative measure of non-scale-free interacting sets of patterns, which reveal organised features of the structure of dynamic properties interconnected with human gait. This thesis focuses on implementing robust …
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Hyperbolic graph embedding of magnetoencephalography brain networks to study brain alterations in patients with subjective cognitive decline
… a more central parent node. This model allows scale-free graphs to be embedded into 2 dimensions with low distortion while maintaining a conformal mapping of angles to Euclidean space. The Poincare model is particularly useful for neuroscientific analysis, as brain networks are generally …
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A Thousand Plateaux
… Klee offered the starting point for this work. Scale-Free Spaces for flute, guitar, viola and cello I drew compositional ideas from the video installation, Irreversible, by artist Norimichi Hirakawa. This quartet was composed of brief fragments of dots, lines and movements. Various fragments …
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The von Neumann Minimax Theorem and its relatives and a study of externality in on-line auctions
… networ.k and shows that it is a small-world scale-free network.
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