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 46 for “"Extreme Values"”.
-
Extreme values of L-functions
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2020-08-01
-
Extreme values of non-Gaussian fields
… in non-Gaussian. In this thesis, we study the extreme values of the non-Gaussian sine-Gordon field and $\textit{P}$($\phi$)$_{2}$ field on the unit torus in dimension $d=2$. Our analysis includes the $\phi_2^4$ field. To this end, we develop tools, which we subsequently use to establish results …
-
Trends and Extreme Values of River Discharge Time Series
… und angewendet, um Trends im Mittelwert und den Extremen von Abflusszeitreihen zu untersuchen. Die Autokorrelationsstruktur der Daten (das Gedächtnis) findet hierbei Berücksichtigung. Ein solcher Ansatz ist zum Beispiel sehr nützlich, um eine mögliche Intensivierung des globalen Wasserkreislaufes …
-
State space modelling of extreme values with particle filters
… a given time frame. The statistical analysis of extremes is important in many fields where the largest or smallest values have the biggest effect. Accurate assessments of the likelihood of extreme events are crucial to judging how severe they could be. While the extreme values of a stationary …
-
Visibility of lattice points in high dimensional spaces and extreme values of combinations of Dirichlet L-functions
… distribution of this generalization for large values of $Q$. In the third part of this thesis, we work with large values of certain Dirichlet series and their partial sums. In particular, we examine a `short' partial sum of the Riemann Zeta function, $\zeta_N(s) = \sum_{n\le N}\frac{1}{n^s}$. …
-
Robustness And Power of a TDT Statistic for Mapping Quantitative Trait Loci
… when the heritability is small. Usually only extreme values are of primary clinical interest and extensive records are accumulated. In this study, an analytical method was developed to compute the power of the TDTG under various degrees of contribution of background polygenes to phenotypic …
-
Superreplication method for multi-asset barrier options.
… on volatilities may represent, for instance, the extreme values of the volatilities of traded options. As the volatilities are not known exactly, the value of the option can not be determined. Nevertheless, it is possible to calculate extreme values. We show that these values correspond to the …
-
Lateral vibration of a beam carrying a concentrated mass at the mid-point, including the effect of rotatory inertia
… for the first ten modes for wide ranges of values of the significant parameters. These numerical results are depicted in tables and graphs. A study is made of the limiting values of the frequency roots for extreme values of the parameters.
-
Spatio-temporal data modeling with applications to weather and disease
… to model the marginal distribution of spatial extreme values at a large scale quickly while allowing flexibility by introducing a fused penalty for parameter regularization. Next, various models are considered and evaluated to compare county-level HIV prediction over the US to determine if …
-
Statistical Models for Extreme Events in Atmospheric Processes
<p>Extreme events - that is, intense events so rare to be poorly represented in historical observational records - play a fundamental role in atmospheric processes, and can have far reaching consequences ranging from impacts on society, economy, the environment, as well as on the global water and …
-
Predictive modelling and coastal storm responsea study of urban and natural coastal systems
… plans are necessary to reduce the impact of extreme events on those areas. In many cases, the development of those plans is based on early warning systems, a combination of pre-established extreme values and numerical models to forecast the storm's possible impact. However, the local …
-
High Angular Momentum Rydberg Wave Packets
… superpositions of Stark states with near extreme values of angular momentum, [cursive l]. Wave packet components orbit the parent nucleus at rates that depend on their energy, leading to periods of localization and delocalization as the components come into and go out of phase with each …
-
Statistical models for dependent and non-stationary extreme events
Extreme value methods are used in a wide range of applications, for example they may be used for modelling wave heights and river levels in hydrology, wind speeds in structural engineering and share price return levels in economics. Many statistical models and methods of inference exist for the …
-
Uplift modeling with multiple treatments
… Splits are likely to be placed adjacent to extreme values, and successive splits tend to group together similar extreme values, which introduces bias into the estimation of leaf node responses. To solve the problem, we propose a modified version of CTS algorithm called Unbiased Contextual …
-
Surface conductance of germanium cleaved in liquid nitrogen
… space charge region, and applied for two extreme values of the hole mobility, The results are related to two models of the surface energy spectrum for the excess electrons: 1) a discrete level with 1,44 x 10 15 states/cni 2 , 2) a 20 ev wide band of levels with '7,22 x 10 13 states/cm 2 …
-
OMICS APPROACHES FOR OMEGA-6/OMEGA-3 POLYUNSATURATED FATTY ACID RATIO IN PIGS
… muscle samples from 20 Iberian x Duroc pigs with extreme values for n-6/n-3 FA ratio and identified differentially expressed messenger RNAs (mRNAs) and microRNAs (miRNAs). Our findings highlighted mRNA genes, miRNAs and enriched pathways that were related to lipid metabolism, cell growth and …
-
Heavy-Tailed Crack Distribution Families and Applications
… are studied relying on the classical theories of extreme values and regular variation. Moreover, we discuss the asymptotic behavior of the hazard rate function of the generalized crack distribution. Student's t crack, Laplace crack, the generalized Gaussian crack distributions are proposed as …
-
On the distribution of central values of Hecke L-functions
… analogue of Soundararajan’s result on extreme values of the Riemann zeta function for Hecke<em> L</em>-functions to angular characters over imaginary quadratic number fields. This result relies on the resonance method, which is applied for the first time to this family of<em> …
-
Mass transfer and dispersion processes in connected conductivity structures : simulation, visualization, delineation and application
… We first motivate the importance of connected extreme conductivity values through the numerical creation of two-dimensional conductivity fields with nearly identical univariate conductivity distributions and covariances, but with varying connectedness of extreme values. We simulated flow and …
-
Urinary phthalate exposure and reproductive outcomes in U.S. women: evidence of dose-response associations in NHANES 2003-2014
… of creatinine adjustment and exclusion of extreme values. A cumulative exposure index for phthalates did not demonstrate stronger associations than individual metabolites, suggesting that individual compounds may be more informative than the composite exposure summary for this outcome. …
Page 1 of 3