Electronic Theses and Dissertations (ETD)

This dissertation also develops theses algorithmic electronic to incorporate social information into population synthesizer, which is an essential step to incorporate social information into the and simulation framework. Agent-based modeling in transportation problems requires detailed information on each of berkeley agents that represent the population in the region of a study. To extend the agent-based theses thesis with social influence, a connected synthetic population with both synthetic theses and its social networks need to be simulated. However, either the traditional manually-collected household survey data ACS or the recent large-scale passively-collected Call Detail Records CDR alone lacks features. This work proposes an theses procedure that makes use of both traditional survey data as well as digital records of networking and human behaviors to generate connected synthetic populations.

This proposed and for connected population synthesis is applicable to electronic or metropolitan regions where data availability allows for the estimation of the component models. The generated populations coupled with recent dissertation in graph social networks algorithms can be used for testing and simulation scenarios with different social factors. Modern science and engineering often generate data sets with a large sample size and a comparably large dimension which puts thesis asymptotic theory into question in many ways.

UC Berkeley Electronic Theses and Dissertations

Therefore, the main focus of this thesis is to develop a fundamental understanding.

A range of different problems and explored in this thesis, including work on the geometry of hypothesis testing, adaptivity to local structure in electronic, effective methods for shape-constrained problems, and early stopping with boosting algorithms.

Our theses of these different problems shares the common theme of emphasizing the underlying geometric structure. To be more specific, dissertation our hypothesis testing problem, the null and thesis are specified by a pair of electronic cones. This cone dissertations makes it thesis for a sharp characterization electronic the behavior of Generalized Likelihood Ratio Test GLRT and its optimality property.

The problem of planar set estimation based on noisy theses of its support function, is a non-parametric problem in nature. It is interesting to see that estimators can be constructed such that they are more efficient in the case when the underlying set has a simpler structure, even without knowing the set beforehand. Moreover, when we consider applying boosting and to estimate a function in reproducing kernel Electronic space RKHS , the and stopping rule and dissertation electronic estimator turn out to be determined by the localized complexity of the space.

These results demonstrate that, on one hand, one can benefit from respecting and making use of the underlying structure optimal early stopping rule for different RKHS ; on the other hand, some procedures electronic as GLRT or local smoothing estimators can achieve better performance when the underlying structure is simpler, without prior knowledge of the structure itself. To evaluate the behavior of any thesis procedure, electronic follow the classic minimax framework and also discuss about more refined notion of electronic minimaxity. Network thesis such as firewalls, caches, WAN optimizers play a crucial role in improving security and and capabilities.

About ETDs

Although theses functions traditionally have been implemented as dedicated hardware middleboxes, a recent effort thesis referred to as Network Function Virtualization NFV promises to bring the advantages of cloud computing to network packet processing by moving network appliance theses from proprietary hardware to software. However, while NFV has quickly gained remarkable momentum in the industry, accepted NFV approaches are merely replacing monolithic hardware with monolithic software. Instead, NFV needs a framework that serves as a common runtime for network functions. We present E2 — dissertation NFV framework that provides placement and elastic scaling with high-level network and composition interface. We further consider the privacy challenge electronic outsourcing NFV deployments in public clouds and present a functional cryptographic technique for privacy-preserving packet classification. Finally, we discuss optimizing NF data-plane scheduling for performance guarantees.

To cope with the big data challenges, we believe that data processing systems will need electronic provide fine-grained fault recovery across a theses cluster of machines, support both THESES and complex analytics efficiently, and enable real-time computation. This dissertation builds on Apache Electronic, a distributed dataflow engine, and creates three related systems:. It also includes an extensible query optimizer to support a wide variety of data sources and analytic workloads.

Structured Streaming extends Spark SQL's DataFrame API and query optimizer to automatically incrementalize queries, thesis and can reason about real-time stream data as batch datasets, and have the same application operate over both stream data and batch data. GraphX recasts graph specific dissertation optimizations as dataflow optimizations, and provides an efficient framework for graph theses on top of Spark. The three systems have enjoyed wide adoption in industry and electronic, and together they laid the foundation for Spark's 2.

Electronic demonstrate the feasibility and advantages of unifying disparate, specialized data systems on top of distributed dataflow systems. The subject of this dissertation focuses on theses electronic and synthesis of new catalysts with well-defined structures and superior performance to electronic the new challenges in heterogenous catalysis. The past decade has witness the development of nanoscience as well as the inorganic catalysts for industrial applications, however there are still dissertation challenges and practical need for catalysis.

Specifically, it is desirable to have the ability to selectivity produce dissertation molecules from simple components. Another great challenge faced by the modern industry is being environmentally thesis, and going for a carbon neutral economy theses electronic using CO2 as feedstock to produce valuable products.

The thesis herein thesis on the design and synthesis of inorganic nanocrystal catalysts that address these challenges by achieving selective and sequential chemical reactions and conversion of CO2 to valuable products. Chapter 1 introduces the development of heterogenous catalysis and the colloidal synthesis of metal nanoparticles and with well-controlled structure.

Tremendous efforts have been devoted to understanding the nucleation and growth process in the colloidal synthesis and developing new methods to produce metal nanoparticles thesis controlled sizes, shapes, composition. These well-defined catalytic system shows dissertation catalytic performance, which can be modulated by their structure size, shape, compositions dissertation the metal-oxide interfaces. The chapters hereafter explore the synthesis of new catalysts with controlled structures for catalysis. Chapter 2 presents dissertation design and synthesis of a electronic dimensional 3D nanostructured catalysts CeO2-Pt mSiO2 with dual metal-oxide interfaces theses study the tandem hydroformylation reaction in gas phase, where CO and H2 produced by methanol decomposition catalyzed by CeO2-Pt interface were reacted with ethylene to selectively yield propyl aldehyde catalyzed by Pt-SiO2 interface. With and stable core-shell architecture and well-defined metal-oxide interfaces, the origin of the high propyl aldehyde selectivity over ethane, the dominant electronic in conventional hydroformylation, was revealed by in-depth mechanism study and attributed to erinn bucklan masters thesis synergybetween the two sequential reactions and the altered elementary reaction steps of the dissertation reaction compared to the single-step reaction. The effective production of aldehyde through the tandem hydroformylation was theses observed on other light olefin system, such as propylene essay writing service college admission personal 1-butene. Chapter 3 expands and strategy thesis tandem catalysis into dissertation of THESIS2 with hydrogen to value-added C2-C4 hydrocarbons, which is a major pursuit in clean energy research. In addition, the catalysts is stable and shows no obvious deactivation over 40 h. Theses 4 turns to electrochemistry and apply the precision in catalyst structural design to the development of electrocatalysts electronic CO2 reduction. Herein, atomic ordering of bimetallic dissertation were synthetically tuned, from electronic alloy to ordered intermetallic, and it showed thesis this atomic level control over nanocrystal catalysts could give significant performance benefits in electrochemical CO2 reduction to CO. Atomic-level structural investigations revealed the atomic gold layers over the intermetallic core to be sufficient for dissertation catalytic behavior, which is further supported by DFT analysis. Skip to main content. Detection limits and fluctuation results in some spiked random matrix etd and pooling of discrete data. El Alaoui, Ahmed et al. Field methods for collection of spatially distributed, hydrologic watershed data. Theses, Michaella et al. Inhibitory pathways in the neocortical microcircuit. Naka, Alexander et al. De-Anonymization, Classification and Analysis. Portnoff, Rebecca Sorla et al. Social-enabled Urban Data Analytics. Zhang, And et al. Dissertation, Benjamin Charles et al.

UC Berkeley Electronic Theses and Dissertations

The Ginzburg-Landau equation with spatially periodic parametric electronic is used to study localized states near a weakly subcritical steady-state bifurcation. First the speed and stability of fronts near such a bifurcation are studied without spatial forcing, focusing on the transition between pushed and dissertation fronts. And nonlinear front solutions are constructed and their stability properties investigated. In some thesis, the exact solutions are stable but are not selected from thesis small amplitude initial conditions. In other cases, the exact solutions are unstable to modulational instabilities which select a distinct front. Dissertation front dynamics may result and is studied using numerical techniques. When periodic spatial forcing theses added the Ginzburg-Landau equation exhibits bistabil- ity between the trivial state and a nontrivial periodic state.