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Adaptive Local Weighted Kernel-Based Regression For Online Modeling Of Batch Processes, Kun Chen, Haiqing Wang, Jun Ji, Zhihuan Song 2010 Zhejiang University

Adaptive Local Weighted Kernel-Based Regression For Online Modeling Of Batch Processes, Kun Chen, Haiqing Wang, Jun Ji, Zhihuan Song

Jun Ji

Fed-batch processes are inherently more difficult to model than continuous processes due to the variations under complex operation, drifting and small-sample condition. The classical kernel-based regression (KR) methods, e.g., least squares support vector regression (LSSVR), aim to achieve a universal generalization performance, which may be unsuitable for some local regions. Local LSSVR model which only uses the neighbors of the new sample helps improve the accuracy, but it leads a heavy computation load. Inspired by the idea of universal and local learning simultaneously, an adaptive local weighed kernel learning method (ALW-KR) is proposed here. In ALW-KR, adaptive weights are ...


High-Precision U-Pb Zircon Age Calibration Of The Global Carboniferous Time Scale And Milankovitch Band Cyclicity In The Donets Basin, Eastern Ukraine, Vladimir I. Davydov, James L. Crowley, Mark D. Schmitz, Vladislav I. Poletaev 2010 Boise State University

High-Precision U-Pb Zircon Age Calibration Of The Global Carboniferous Time Scale And Milankovitch Band Cyclicity In The Donets Basin, Eastern Ukraine, Vladimir I. Davydov, James L. Crowley, Mark D. Schmitz, Vladislav I. Poletaev

Mark D. Schmitz

High-precision ID-TIMS U-Pb zircon ages for 12 interstratified tuffs and tonsteins are used to radiometrically calibrate the detailed lithostratigraphic, cyclostratigraphic, and biostratigraphic framework of the Carboniferous Donets Basin of eastern Europe. Chemical abrasion of zircons, use of the internationally calibrated EARTHTIME mixed U-Pb isotope dilution tracer, and improved mass spectrometry guided by detailed error analysis have resulted in an age resolution of


Observation And Modeling Of Source Effects In Coda Wave Interferometry At Pavlof Volcano, Matthew Haney, Kasper van Wijk, Leiph Preston, David Aldridge 2010 Boise State University

Observation And Modeling Of Source Effects In Coda Wave Interferometry At Pavlof Volcano, Matthew Haney, Kasper Van Wijk, Leiph Preston, David Aldridge

Matthew M. Haney

We examine seismic records of repeating explosions from Pavlof volcano, Alaska, during its 2007 eruption. Repetitive explosions are typical of Strombolian-style eruptions and allow measurement of relative time shifts between similar late-arriving phases using the technique called coda wave interferometry (Snieder et al., 2002). The measurements enable the detection of small changes in the volcanic interior of Pavlof. We are able to resolve an increase in the relative traveltime change of late-arriving seismic waves on the order of 0.3% over the course of two weeks. Based on the spectra of the explosions, their location inside the magma conduit, previous ...


The Virtual Refraction: Useful Spurious Energy In Seismic Interferometry, Dylan Mikesell, Kasper van Wijk, Alexander Calvert, Matthew Haney 2010 Boise State University

The Virtual Refraction: Useful Spurious Energy In Seismic Interferometry, Dylan Mikesell, Kasper Van Wijk, Alexander Calvert, Matthew Haney

Matthew M. Haney

Seismic interferometry is rapidly becoming an established technique to recover the Green’s function between receivers, but practical limitations in the source-energy distribution inevitably lead to spurious energy in the results. Instead of attempting to suppress all such energy, we use a spurious wave associated with the crosscorrelation of refracted energy at both receivers to infer estimates of subsurface parameters. We named this spurious event the virtual refraction. Illustrated by a numerical two-layer example, we found that the slope of the virtual refraction defines the velocity of the faster medium and that the stationary-phase point in the correlation gather provides ...


Infrasonic Ambient Noise Interferometry From Correlations Of Microbaroms, Matthew M. Haney 2010 Boise State University

Infrasonic Ambient Noise Interferometry From Correlations Of Microbaroms, Matthew M. Haney

Matthew M. Haney

We show that microbaroms, continuous infrasound fluctuations resulting from the interaction of the ocean with the atmosphere, have long-range correlation properties that make it possible to estimate the impulse response between two microphones from passive recordings. The processing is analogous to methods employed in the emerging field of ambient noise seismology, where the random noise source is the ocean coupling with the solid Earth (microseisms) instead of the atmosphere (microbaroms). We find that timedependent temperature fields and temperature inversions determine the character of infrasonic impulse responses at Fourpeaked Volcano in Alaska. Applications include imaging and monitoring the gross structure of ...


The Virtual Refraction: Useful Spurious Energy In Seismic Interferometry, Dylan Mikesell, Kasper van Wijk, Alexander Calvert, Matthew M. Haney 2010 Boise State University

The Virtual Refraction: Useful Spurious Energy In Seismic Interferometry, Dylan Mikesell, Kasper Van Wijk, Alexander Calvert, Matthew M. Haney

Kasper van Wijk

Seismic interferometry is rapidly becoming an established technique to recover the Green’s function between receivers, but practical limitations in the source-energy distribution inevitably lead to spurious energy in the results. Instead of attempting to suppress all such energy, we use a spurious wave associated with the crosscorrelation of refracted energy at both receivers to infer estimates of subsurface parameters. We named this spurious event the virtual refraction. Illustrated by a numerical two-layer example, we found that the slope of the virtual refraction defines the velocity of the faster medium and that the stationary-phase point in the correlation gather provides ...


Observation And Modeling Of Source Effects In Coda Wave Interferometry At Pavlof Volcano, Matthew Haney, Kasper van Wijk, Leiph Preston, David Aldridge 2010 Boise State University

Observation And Modeling Of Source Effects In Coda Wave Interferometry At Pavlof Volcano, Matthew Haney, Kasper Van Wijk, Leiph Preston, David Aldridge

Kasper van Wijk

We examine seismic records of repeating explosions from Pavlof volcano, Alaska, during its 2007 eruption. Repetitive explosions are typical of Strombolian-style eruptions and allow measurement of relative time shifts between similar late-arriving phases using the technique called coda wave interferometry (Snieder et al., 2002). The measurements enable the detection of small changes in the volcanic interior of Pavlof. We are able to resolve an increase in the relative traveltime change of late-arriving seismic waves on the order of 0.3% over the course of two weeks. Based on the spectra of the explosions, their location inside the magma conduit, previous ...


Seismic Wave Attenuation In Carbonates, Ludmila Adam, M. Batzle, K. Lewallen, Kasper van Wijk 2010 Boise State University

Seismic Wave Attenuation In Carbonates, Ludmila Adam, M. Batzle, K. Lewallen, Kasper Van Wijk

Kasper van Wijk

The effect of pore fluids on seismic wave attenuation in carbonate rocks is important for interpreting remote sensing observations of carbonate reservoirs undergoing enhanced oil recovery. Here we measure the elastic moduli and attenuation in the laboratory for five carbonate samples with 20% to 30% porosity and permeability between 0.03 and 58.1 mdarcy. Contrary to most observations in sandstones, bulk compressibility losses dominate over shear wave losses for dry samples and samples fully saturated with either liquid butane or brine. This observation holds for four out of five samples at seismic (10–1000 Hz) and ultrasonic frequencies (0 ...


Topics In Random Knots And R-Matrices From Frobenius Algebras, Enver Karadayi 2010 University of South Florida

Topics In Random Knots And R-Matrices From Frobenius Algebras, Enver Karadayi

Graduate Theses and Dissertations

In this dissertation, we study two areas of interest in knot theory: Random knots in the unit cube, and the Yang-Baxter solutions constructed from Frobenius algebras.

The study of random knots can be thought of as a model of DNA strings situated in confinement. A random knot with n vertices is a polygonal loop formed by selecting n distinct points in the unit cube, for a positive integer n, and connecting these points by straight line segments successively, such that the last point selected is joined with the first one. We present a step by step description of our algorithm ...


Developing A Library Value Indicator For A Disciplinary Population, Jeanne M. Brown 2010 University of Nevada, Las Vegas

Developing A Library Value Indicator For A Disciplinary Population, Jeanne M. Brown

Library Faculty Presentations

Population
- Landscape architecture studio of ten 5th year students
- Use of physical library ranges from 1- 30 times/month
- Use of virtual library ranges from 2-30x/month
- Compared to others in School of Architecture use is moderate
- They self-rate as average or above average on library skills, compared to their peers


Surface Alignment, Anchoring Transitions, Optical Properties, And Topological Defects In The Nematic Phase Of Thermotropic Bent-Core Liquid Crystal A131, B. Senyuk, H. Wonderly, M. Mathews, Q. Li, Sergij V. Shiyanovskii, Oleg Lavrentovich 2010 Kent State University - Kent Campus

Surface Alignment, Anchoring Transitions, Optical Properties, And Topological Defects In The Nematic Phase Of Thermotropic Bent-Core Liquid Crystal A131, B. Senyuk, H. Wonderly, M. Mathews, Q. Li, Sergij V. Shiyanovskii, Oleg Lavrentovich

Chemical Physics Publications

We study optical, structural, and surface anchoring properties of thermotropic nematic bent-core material A131. The focus is on the features associated with orientational order as the material has been reported to exhibit not only the usual uniaxial nematic but also the biaxial nematic phase. We demonstrate that A131 experiences a surface anchoring transition from a perpendicular to tilted alignment when the temperature decreases. The features of the tilted state are consistent with surface-induced birefringence associated with smectic layering near the surface and a molecular tilt that changes along the normal to the substrates. The surface-induced birefringence is reduced to zero ...


Activation Of The Innate Immune Response By The Alzheimer's Amyloid Beta Protein Via Toll-Like Receptors, Udan Lourdes Maria 2010 University of Missouri-St. Louis

Activation Of The Innate Immune Response By The Alzheimer's Amyloid Beta Protein Via Toll-Like Receptors, Udan Lourdes Maria

Dissertations

Alzheimer’s Disease (AD) is the most common form of neurodegenerative disease characterized by the generation and deposition of amyloid beta plaques and the formation of neurofibrillary tangles. A wealth of data now demonstrate that inflammation is a prominent feature in AD pathology and a potential therapeutic target for the treatment and prevention of the disease. The emergence of evidence linking amyloid beta protein (Aβ), the primary component of senile plaques, to inflammation has led to new insights into understanding AD pathology. Aβ, a protein fragment resulting from cleavage of human amyloid precursor protein (APP), primarily exists in two forms ...


Context Modeling For Ranking And Tagging Bursty Features In Text Streams, Xin ZHAO, Jing JIANG, Jing HE, Xiaoming LI, Hongfei YAN, Dongdong Shan 2010 Singapore Management University

Context Modeling For Ranking And Tagging Bursty Features In Text Streams, Xin Zhao, Jing Jiang, Jing He, Xiaoming Li, Hongfei Yan, Dongdong Shan

Research Collection School Of Information Systems

Bursty features in text streams are very useful in many text mining applications. Most existing studies detect bursty features based purely on term frequency changes without taking into account the semantic contexts of terms, and as a result the detected bursty features may not always be interesting or easy to interpret. In this paper we propose to model the contexts of bursty features using a language modeling approach. We then propose a novel topic diversity-based metric using the context models to find newsworthy bursty features. We also propose to use the context models to automatically assign meaningful tags to bursty ...


The Metadata Challenge: Promoting Discovery, Access, And Usability For Online Books, John Mark Ockerbloom 2010 University of Pennsylvania

The Metadata Challenge: Promoting Discovery, Access, And Usability For Online Books, John Mark Ockerbloom

John Mark Ockerbloom

With millions of books, serials, and other documents now digitized, rich troves of information and culture can now be made available to anyone in the world with an Internet connection. But these riches are worthless if they cannot be found, accessed, and effectively used by the readers who need them. The key to unlock these treasures is metadata. Networked computing enables techniques for making metadata more effective than ever; yet in practice, online collections all too often either do not have or do not take full advantage of the best metadata they could use.

There is much ongoing work harnessing ...


Adaptive Least Contribution Elimination Kernel Learning Approach For Rubber Mixing Soft-Sensing Modeling, Yanchen Gao, Jun Ji, Haiqing Wang, Ping Li 2010 Zhejiang University

Adaptive Least Contribution Elimination Kernel Learning Approach For Rubber Mixing Soft-Sensing Modeling, Yanchen Gao, Jun Ji, Haiqing Wang, Ping Li

Jun Ji

Rubber mixing process is a typical non-linear fed-batch process without well developed mechanism. Soft-sensing of the mixture’s Mooney viscosity is crucial and challenging since this index is a process criterion to judge the quality of rubber compounds. However, measurement of Mooney viscosity is time-consuming and laborious to assay. Furthermore, the mixing process is drifting and volatile even noisy; only few data samples could be used to modeling. In present paper, an adaptive least contribution elimination kernel learning (ALCEKL) approach is proposed to predict the Mooney viscosity. It adopts a sparsity strategy of least contribution elimination and presents a buffer ...


Applying Reflection Tomography In The Postmigration Domain To Multifold Ground-Penetrating Radar Data, John H. Bradford 2010 Boise State University

Applying Reflection Tomography In The Postmigration Domain To Multifold Ground-Penetrating Radar Data, John H. Bradford

John H. Bradford

Acquisition and processing of multifold ground-penetrating radar (GPR) data enable detailed measurements of lateral velocity variability. The velocities constrain interpretation of subsurface materials and lead to significant improvement in image accuracy when coupled with prestack depth migration (PSDM). Reflection tomography in the postmigration domain was introduced in the early 1990s for velocity estimation in seismic reflection. This robust, accurate method is directly applicable in multifold GPR imaging. At a contaminated waste facility within the U.S. Department of Energy’s Hanford site in Washington, the method is used to identify significant lateral and vertical velocity heterogeneity associated with infilled waste ...


Exploring The Use Of Numerical Relativity Waveforms In Burst Analysis Of Precessing Black Hole Mergers, Sebastian Fischetti, James Healy, Laura Cadonati, Lionel London, Satyanarayan Mohapatra, Deirdre Shoemaker 2010 University of Massachusetts - Amherst

Exploring The Use Of Numerical Relativity Waveforms In Burst Analysis Of Precessing Black Hole Mergers, Sebastian Fischetti, James Healy, Laura Cadonati, Lionel London, Satyanarayan Mohapatra, Deirdre Shoemaker

Laura Cadonati

Recent years have witnessed tremendous progress in numerical relativity and an ever improving performance of ground-based interferometric gravitational wave detectors. In preparation for Advanced LIGO and a new era in gravitational wave astronomy, the numerical relativity and gravitational wave data analysis communities are collaborating to ascertain the most useful role for numerical relativity waveforms in the detection and characterization of binary black hole coalescences. In this paper, we explore the detectability of equal mass, merging black hole binaries with precessing spins and total mass M_T in [80,350]Msol, using numerical relativity waveforms and template-less search algorithms designed for gravitational ...


Adaptive Algorithms For Coverage Control And Space Partitioning In Mobile Robotic Networks, Jerome Le Ny, George J. Pappas 2010 University of Pennsylvania

Adaptive Algorithms For Coverage Control And Space Partitioning In Mobile Robotic Networks, Jerome Le Ny, George J. Pappas

Technical Reports (ESE)

We consider deployment problems where a mobile robotic network must optimize its configuration in a distributed way in order to minimize a steady-state cost function that depends on the spatial distribution of certain probabilistic events of interest. Three classes of problems are discussed in detail: coverage control problems, spatial partitioning problems, and dynamic vehicle routing problems. Moreover, we assume that the event distribution is a priori unknown, and can only be progressively inferred from the observation of the location of the actual event occurrences. For each problem we present distributed stochastic gradient algorithms that optimize the performance objective. The stochastic ...


Determining Optimal Storage Arrangements For Open Access Data Sets, As For Nsf Data Management Plan Requirements, David B. Lowe 2010 University of Connecticut - Storrs

Determining Optimal Storage Arrangements For Open Access Data Sets, As For Nsf Data Management Plan Requirements, David B. Lowe

Published Works

Document is a proposed draft of a decision tree to be used in determining what approach to take for making data available in order to comply with open access requirements for data management, as per National Science Foundation requirements.


Second-Harmonic Generation In A Bent-Core Nematic Liquid Crystal, Seung Ho Hong, J. C. Williams, Robert J. Twieg, Antal Jakli, Jim T. Gleeson, Samuel N. Sprunt, Brett Ellman 2010 Kent State University - Kent Campus

Second-Harmonic Generation In A Bent-Core Nematic Liquid Crystal, Seung Ho Hong, J. C. Williams, Robert J. Twieg, Antal Jakli, Jim T. Gleeson, Samuel N. Sprunt, Brett Ellman

Chemical Physics Publications

Second-Second-harmonic generation (SHG) is studied in the magnetically aligned nematic phase of a bent-core liquid crystal (BCN) and compared to similar measurements made on a conventional rodlike (calamitic) nematic compound. The second-harmonic (SH) light detected from both materials is predominantly due to scattering and therefore incoherent. Results on the calamitic are consistent with a polarization induced by ordinary director fluctuations in the nematic phase. However, the SH scattering collected in the BCN exhibits a different temperature and angular dependence. We discuss how these differences could arise from the effects of short-range correlated, smectic-C-type molecular clusters, which have been detected in ...


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