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Dissertations / Theses on the topic 'Gradient-free'

Author: Grafiati

Published: 20 June 2021

Last updated: 29 July 2025

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1

Werner, Tino [Verfasser], Peter [Akademischer Betreuer] Ruckdeschel, and Matthias [Akademischer Betreuer] Schmid. "Gradient-Free Gradient Boosting / Tino Werner ; Peter Ruckdeschel, Matthias Schmid." Oldenburg : BIS der Universität Oldenburg, 2020. http://d-nb.info/120419968X/34.

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Walton, Sean Peter. "Gradient free optimisation in selected engineering applications." Thesis, Swansea University, 2013. https://cronfa.swan.ac.uk/Record/cronfa43116.

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3

Yucelen, Tansel. "Advances in adaptive control theory: gradient- and derivative-free approaches." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/43731.

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In this dissertation, we present new approaches to improve standard designs in adaptive control theory, and novel adaptive control architectures. We first present a novel Kalman filter based approach for approximately enforcing a linear constraint in standard adaptive control design. One application is that this leads to alternative forms for well known modification terms such as e-modification. In addition, it leads to smaller tracking errors without incurring significant oscillations in the system response and without requiring high modification gain. We derive alternative forms of e- and ad

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Harrison, Stephen C. W. "Free field modeling of a MEMS-Based pressure gradient microphone." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Dec/09Dec%5FHarrison.pdf.

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Thesis (M.S. in Engineering Acoustics and M.S. in Applied Physics)--Naval Postgraduate School, December 2009.<br>Thesis Advisor(s): Karunasiri, Gamani; Baker, Steven. "December 2009." Description based on title screen as viewed on January 26, 2010. Author(s) subject terms: MEMS, Model, Simulation, Pressure Gradient, Particle Velocity, Directional, Microphone, SOMSOL, Acoustic. Includes bibliographical references (p. 51-52). Also available in print.

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Refsnæs, Runar Heggelien. "Matrix-Free Conjugate Gradient Methods for Finite Element Simulations on GPUs." Thesis, Norges Teknisk-Naturvitenskaplige Universitet, Institutt for fysikk, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-10826.

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<p>A block-structured approach for solving 2-dimensional finite element approximations of the Poisson equation on graphics processing units(GPUs) is developed. Linear triangular elements are used, and a matrix-free version of the conjugate gradient method is utilized for solving test problems with over 30 million elements. A speedup of 24 is achieved on a NVIDIA Tesla C1060 GPU when compared to a serial CPU version of the same solution approach, and a comparison is made with previous GPU implementations of the same problem.</p>

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Nutini, Julie Ann. "A derivative-free approximate gradient sampling algorithm for finite minimax problems." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/42200.

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Mathematical optimization is the process of minimizing (or maximizing) a function. An algorithm is used to optimize a function when the minimum cannot be found by hand, or finding the minimum by hand is inefficient. The minimum of a function is a critical point and corresponds to a gradient (derivative) of 0. Thus, optimization algorithms commonly require gradient calculations. When gradient information of the objective function is unavailable, unreliable or ‘expensive’ in terms of computation time, a derivative-free optimization algorithm is ideal. As the name suggests, derivative-free optimi

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Fejes, Niklas. "High Performance Multi-Objective Voyage Planning Using Local Gradient-Free Methods." Thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-305582.

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A number of parallel gradient-free local optimization methods are investigated in application to problems of voyage planning for maritime ships. Two optimization algorithms are investigated, a parallel version of the Nelder-Mead Simplex method and the Subplex method with Nelder-Mead Simplex as its inner solver. Additionally, two new formulations of the optimization problem are suggested which together with an improved implementation of the objective function increases the overall performance of the model. Numerical results show the efficiency of these methods in comparison with the earlier int

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Li, Futong. "Global Optimization Techniques Based on Swarm-intelligent and Gradient-free Algorithms." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42307.

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The need for solving nonlinear optimization problems is pervasive in many fields. Particle swarm optimization, advantageous with the simple underlying implementation logic, and simultaneous perturbation stochastic approximation, which is famous for its saving in the computational power with the gradient-free attribute, are two solutions that deserve attention. Many researchers have exploited their merits in widely challenging applications. However, there is a known fact that both of them suffer from a severe drawback, non- effectively converging to the global best solution, because of the loca

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Cantergiani, Elisa. "Mechanical Properties of Functionally Graded Materials: Carbon Gradient inside Interstitial Free Steel." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34314.

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In the last decade aluminium started to be considered as an alternative to steel to produce car body panels, especially considering the strict demands to decrease fuel consumption which require vehicle weight reduction. In order to keep their leading role, steel companies have to produce stronger materials to reduce the thickness of steel sheets used in cars and are now considering non-conventional steel making processes. The purpose of this PhD research was to investigate the possibility of strengthening thin sheets of interstitial free steel (IF steel) by using carbon rich films deposited o

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Alkhamis, A. T. A. "Structural optimization for static and free vibration conditions using genetic and gradient-based algorithms." Thesis, Swansea University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.635759.

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This thesis is concerned with the development and application of reliable, creative and efficient computational tools for the analysis and structural optimization of 2D and 3D trusses under static and free vibration conditions and prismatic structures under static and free vibration conditions. The first part of the thesis deals with the analysis and optimization of 2D and 3D trusses under static and free vibration conditions. The second part of the thesis deals with prismatic structures under static and free vibration conditions which are idealised as effectively one-dimensional problems. The

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Shariati, Hossein. "Micromechanical study of PFZ in aluminum alloys." Thesis, KTH, Hållfasthetslära (Inst.), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190115.

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There are a number of experiments showing that the ductility of aluminum alloys decreases during age-hardening heat treatment. Observing the grains of age-hardened aluminum alloys at the micron scale, one can notice that there are precipitate-free zones (PFZs) along the grain boundaries. PFZ has yield stress three times lower than the grain interior (bulk) due to absence of alloying elements. As a result, PFZ is suspected to be the reason for ductility reduction of alloys. On the other hand, a number of experiments performed on specimens with micron-scale dimensions have shown that the plastic

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Dogan, Eda. "Effects of large-scale free stream turbulence on a zero-pressure-gradient turbulent boundary layer." Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/412650/.

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The focus of this study is to investigate the characteristics of a zero-pressure-gradient turbulent boundary layer in the presence of large-scale free-stream turbulence. Particular attention is given to scale interactions occurring within the turbulent boundary layer. The free-stream turbulence was generated by an active grid. The investigation was conducted as an experimental work using hot-wire anemometry and Particle Image Velocimetry. Large-scale structures occurring in the free-stream are shown to penetrate the boundary layer and increase the streamwise velocity fluctuations throughout. T

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SERPICO, CLAUDIO. "THE FERMI FREE ELECTRON LASER: A HIGH GRADIENT SOLUTION FOR INCREASING THE LINEAR ACCELERATOR ENERGY." Doctoral thesis, Università degli Studi di Trieste, 2018. http://hdl.handle.net/11368/2921227.

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The principle of operation of the Free-Electron Lasers (FELs) was invented in 1971 but only in recent years it has become clear that these devices are very powerful light sources in the X-ray regime. Their high pulse energy, the femtosecond duration of the X-ray pulses, as well as their coherence, open entirely new fields of research, which were inaccessible in the present third generation light sources. The main components of a FEL are a linear accelerator, providing a bunched relativistic electron beam, and a chain of undulator magnets, where the electrons move along sinusoidal trajectories

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Mao, Zirui. "A Novel Lagrangian Gradient Smoothing Method for Fluids and Flowing Solids." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1553252214052311.

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Dimitrijević, Bojan J. [Verfasser], Klaus [Gutachter] Hackl, and Paul [Gutachter] Steinmann. "On a regularization framework for inelastic material models via gradient enhancement of the free energy function / Bojan J. Dimitrijević ; Gutachter: Klaus Hackl, Paul Steinmann." Bochum : Ruhr-Universität Bochum, 2017. http://d-nb.info/1129452247/34.

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16

Trimarchi, Biagio. "Distributed Identification of a Network Model for Pandemic Spreading." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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The recent outburst of the Covid-19 epidemic has made clear the necessity of developing dynamical models for the prediction and the control of large scale epidemic systems. Due to the large impact they have on the life of people and on the economy of the countries, it is extremely important to design models that are able to predict the evolution of such complex phenomena. In the thesis a compartmental model for epidemics is developed and implemented in a Python toolbox suited for distributed computation. Based on the proposed model and on available data, an identification algorithm, based on a

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17

Chirat, Mathieu. "Synthèse de nouveaux tensioactifs macromoléculaires complexants et étude de leurs interactions avec le cobalt pour le développement d’un procédé de décontamination des textiles en milieu CO2 dense." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2012. http://www.theses.fr/2012ENCM0018/document.

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Cette étude porte sur la décontamination de matrices textiles en milieu CO2 dense (CO2 liquide ou CO2 supercritique). Elle s'inscrit dans le cadre de la décontamination des textiles utilisés dans l'industrie nucléaire. Le CO2 dense est proposé comme alternative au milieu aqueux utilisé dans le procédé actuel et qui génère une importante quantité d'effluents aqueux contaminés nécessitant un post-traitement. Le contaminant étudié est le cobalt qui peut se présenter sous forme ionique ou particulaire. L'extraction du cobalt en milieu CO2 dense est assurée par un additif : un tensioactif macromolé

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Valverde, Danillo Pires. "Estudo teórico de ácidos aminobenzóicos usando técnicas de mecânica quântica e simulação computacional." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/5557.

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Submitted by Cláudia Bueno (claudiamoura18@gmail.com) on 2016-05-12T17:45:14Z No. of bitstreams: 2 Dissertação - Danillo Pires Valverde - 2016: 5970913 bytes, checksum: db2323393b3cc67f95df905f6a4600e9 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-05-13T11:02:15Z (GMT) No. of bitstreams: 2 Dissertação - Danillo Pires Valverde - 2016: 5970913 bytes, checksum: db2323393b3cc67f95df905f6a4600e9 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Mad

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Dieltiens, Baptiste. "Contributions à la gestion des risques en assurance vie." Electronic Thesis or Diss., Lyon, 2021. http://www.theses.fr/2021LYSE1135.

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La gestion des risques est un enjeu majeur pour le pilotage d’une compagnie d’assurance. Les données toujours plus nombreuses, les modèles toujours plus sophistiqués et la puissance informatique croissante permettent aujourd’hui aux actuaires, risk managers et data scientists d’affiner la connaissance de leurs portefeuilles d’assurés et des risques sous-jacents. C’est dans ce contexte que se situe cette thèse, qui a pour objectif de contribuer à la compréhension et à la modélisation des risques biométriques et comportementaux en assurance vie, par le biais de trois chapitres introduits et cont

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Silva, Carlos Eduardo Bistafa da. "Estudos teóricos do estado excitado de moléculas orgânicas em solvente." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-22102015-102635/.

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Absorção e Emissão de radiação eletromagnética por moléculas na região do UV-Vis fornece informações sobre os estados eletrônicos excitados, sendo propriedades de grande interesse devido a sua relação com processos biológicos, bem como suas possíveis aplicações em diagnósticos e tecnologia. Essas propriedades são sensíveis ao meio em que as moléculas se encontram, tornando-se assim natural a busca por métodos teóricos que possibilitam descrever essas interações. Neste trabalho, nós usamos a metodologia Sequential-Quantum Mechanics/Molecular Mechanics para estudar o espectro de absorção e de e

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Wycoff, Nathan Benjamin. "Gradient-Based Sensitivity Analysis with Kernels." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/104683.

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Emulation of computer experiments via surrogate models can be difficult when the number of input parameters determining the simulation grows any greater than a few dozen. In this dissertation, we explore dimension reduction in the context of computer experiments. The active subspace method is a linear dimension reduction technique which uses the gradients of a function to determine important input directions. Unfortunately, we cannot expect to always have access to the gradients of our black-box functions. We thus begin by developing an estimator for the active subspace of a function using ker

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Herrera, Andrés Medina. "Estrutura eletrônica da amino- e dimetilamino-benzonitrila em meio usando métodos híbridos de QM/MM." Universidade Federal de Goiás, 2015. http://repositorio.bc.ufg.br/tede/handle/tede/5123.

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Submitted by Cláudia Bueno (claudiamoura18@gmail.com) on 2016-01-15T17:20:21Z No. of bitstreams: 2 Dissertação - Andrés Medina Herrera - 2015.pdf: 11967625 bytes, checksum: 5b7e3f00af20766f822172f92649bc98 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-01-18T09:13:56Z (GMT) No. of bitstreams: 2 Dissertação - Andrés Medina Herrera - 2015.pdf: 11967625 bytes, checksum: 5b7e3f00af20766f822172f92649bc98 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5

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Chen, Xiaodong. "Fluid-Structure Interaction Modeling of Epithelial Cell Deformation during Microbubble Flows in Compliant Airways." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1332208862.

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Wang, Xiaoling. "MRI and NMR Investigations of Transport in Soft Materials and Explorations of Electron-Nuclear Interactions for Liquid-State Dynamic Nuclear Polarization." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/75067.

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The first part of this dissertation (Chapters 1 to 4) describes the use of magnetic resonance techniques for polymeric material characterizations in solutions, with emphasis on methods utilizing magnetic field gradients - magnetic resonance imaging (MRI) and pulsed-field-gradient (PFG) NMR. The second part (Chapter 5) presents enhancements to dynamic nuclear polarization, an intensity enhancement approach for magnetic resonance techniques. In Chapter 2, I illustrate a characterization method to quantify free polymer chain content in a polymer/DNA complex (polyplex) formulation via one-dimens

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Zoltan, Pap. "Projektivni postupci tipa konjugovanih gradijenata za rešavanje nelinearnih monotonih sistema velikih dimenzija." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=110614&source=NDLTD&language=en.

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U disertaciji su posmatrani projektivni postupci tipa konjugovanih gradijenata za re&scaron;avanje nelinearnih monotonih sistema velikih dimenzija. Ovi postupci kombinuju projektivnu metodu sa pravcima pretraživanja tipa konjugovanih gradijenata. Zbog osobine monotonosti sistema, projektivna metoda omogućava jednostavnu globalizaciju, a pravci pretraživanja tipa konjugovanih gradijenata zahtevaju maloračunarske memorije pa su pogodni za re&scaron;avanje sistema velikih dimenzija. Projektivni postupci tipa konjugovanih gradijenata ne koriste izvode niti funkciju cilja i zasnovani su samo na izr

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Lang, Humblot Karine. "Etude et réalisation d'un magnétomètre à résonance magnétique nucléaire à polarisation dynamique pour les applications en forage pétrolier." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10023.

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Les magnetometres a resonance magnetique nucleaire bases sur le phenomene de polarisation dynamique sont des instruments tres adaptes a la mesure du champ magnetique terrestre dans les puits de forage petrolier, ce qui permet une datation assez precise des couches geologiques concernees. Le magnetometre contient un solvant protone avec des radicaux libres en solution afin de realiser la polarisation dynamique qui amplifie le signal nucleaire des protons inobservable sans ce dispositif. Le but de ce travail est d'ameliorer les performances du magnetometre en presence de gradients de champs magn

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27

Pouilly-Cathelain, Maxime. "Synthèse de correcteurs s’adaptant à des critères multiples de haut niveau par la commande prédictive et les réseaux de neurones." Electronic Thesis or Diss., université Paris-Saclay, 2020. http://www.theses.fr/2020UPASG019.

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Cette thèse porte sur la commande des systèmes non linéaires soumis à des contraintes non différentiables ou non convexes. L'objectif est de pouvoir réaliser une commande permettant de considérer tout type de contraintes évaluables en temps réel.Pour répondre à cet objectif, la commande prédictive a été utilisée en ajoutant des fonctions barrières à la fonction de coût. Un algorithme d'optimisation sans gradient a permis de résoudre ce problème d'optimisation. De plus, une formulation permettant de garantir la stabilité et la robustesse vis-à-vis de perturbations a été proposée dans le cadre d

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Zhang, Yumeng. "Modélisation et simulation des dispositifs de ventilation dans les stockages de déchets radioactifs." Thesis, Nice, 2015. http://www.theses.fr/2015NICE4132/document.

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L'objectif de cette thèse est de fournir des modèles et des outils de simulation pour décrire les échanges de masse entre les circuits de ventilation (galeries) et les milieux poreux des ouvrages souterrains d'enfouissement des déchets nucléaires. La modélisation prend en compte le couplage à l'interface poreux-galerie entre les écoulements liquide gaz compositionnels dans le milieu poreux constituant le stockage et les écoulements gazeux compositionnels dans le milieu galerie libre<br>The objective of this thesis is to develop models and algorithms to simulate efficiently the mass exchanges o

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Li, Qian. "Three-dimensional analysis of functionally graded material plates, free vibration in thermal environment and thermal buckling." Thesis, University of Macau, 2008. http://umaclib3.umac.mo/record=b1783646.

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Li, Qi. "Acoustic noise emitted from overhead line conductors." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/acoustic-noise-emitted-from-overhead-line-conductors(90a5c23c-a7fc-4230-bbab-16b8737b2af2).html.

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The developments of new types of conductors and increase of voltage level have driven the need to carry out research on evaluating overhead line acoustic noise. The surface potential gradient of a conductor is a critical design parameter for planning overhead lines, as it determines the level of corona loss (CL), radio interference (RI), and audible noise (AN). The majority of existing models for surface gradient calculation are based on analytical methods which restrict their application in simulating complex surface geometries. This thesis proposes a novel method which utilizes both analytic

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Liou, Cheng-Yeh, and 劉承曄. "HDR Deghosting Using Motion-Registration-Free Fusion in Luminance Gradient Domain." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/9pqrq2.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>106<br>Synthesizing a high dynamic range (HDR) image from multiple images with different exposure times has been widely adopted in the field of digital photography; however, it could be challenging when there are moving objects in the scenes. HDR deghosting methods are those which not only create HDR images but also remove ghosting effects caused by moving objects. Unlike static HDR imaging methods, HDR deghosting methods are not often used by professional or amateur photographers because the processing time is long and final HDR qualities are far from satisfactory

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Kiraz, Fatma. "Distance Measurement-Based Cooperative Source Localization: A Convex Range-Free Approach." Thesis, 2013. http://hdl.handle.net/10012/7709.

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One of the most essential objectives in WSNs is to determine the spatial coordinates of a source or a sensor node having information. In this study, the problem of range measurement-based localization of a signal source or a sensor is revisited. The main challenge of the problem results from the non-convexity associated with range measurements calculated using the distances from the set of nodes with known positions to a xed sen- sor node. Such measurements corresponding to certain distances are non-convex in two and three dimensions. Attempts recently proposed in the literature to eliminate

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Chen, Chun-Hui, and 陳俊輝. "Design and Implementation of a Vehicle LED Front Fog Lamp with High Sharp Bright Gradient Based on a Free Form Surface Lens." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/26wnq6.

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碩士<br>國立虎尾科技大學<br>光電與材料科技研究所<br>102<br>Vehicle lighting systems, the lens''s primary purpose is to light converge or diverge, the vast majority of lenses are spherical lenses, but for some special purpose, such as non-elliptical reflector and the design of the shading plate under the lens to be alone to create a high gradient cutoff line, a spherical lens does not apply. Therefore, we need to design a specific lens to change the direction of light, and these lenses are aspheric mirror often or free-form surfaces, previously limited computing capacity and processing technical limitations, asphe

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Su, Yu-Ping, and 蘇育平. "Effect of temperature gradient on the growth of Ag3Sn intermetallic compounds in Pb-free solder during liquid-state and solid state aging process." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/38413774877087259321.

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碩士<br>國立清華大學<br>工程與系統科學系<br>102<br>Three-dimensional integrated circuit (3DIC) technology has become the major trend of electronic packaging in microelectronic industry. To effectively remove heat in stacked ICs, the temperature gradient must be established across the chips. Furthermore, because of the trend of even higher device current density, the joule heating would be more serious and the temperature gradient across the solder joints is expected to be larger. In this study, we investigated thermomigration behavior in SnAg solders during liquid-state and solid-state aging process, respecti

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Sharma, Akriti. "A shape optimization approach for simulating contact of elastic membranes with rigid obstacles." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/5084.

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The obstacle problem consists in computing equilibrium shapes of elastic membranes in contact with rigid obstacles. In addition to the displacement u of the membrane, the interface 􀀀 on the membrane demarcating the region in contact with the obstacle is also an unknown and plays the role of a free boundary. Numerical methods that simulate obstacle problems as variational inequalities share the unifying feature of fi rst computing membrane displacements and then deducing the location of the free boundary a posteriori. We present a shape optimization-based approach here that inverts this pa

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Amaral, Eliana Patrícia da Conceição. "Redox-free reverse electrodialysis using capacitive electrodes for energy generation." Master's thesis, 2020. http://hdl.handle.net/10362/113080.

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The increasing demand for fossil fuels and arising concerns about their impact on the environment creates the need to develop sustainable technologies that make use of natural sources to generate energy, like reverse electrodialysis (RED) that makes use of salinity gradient power (SGP). In this thesis, a possible optimization of the electrode system applied in RED is introduced, including the preparation and study of capacitive slurry electrodes to replace redox electrodes commonly used. Three slurries were prepared with different carbon concentrations (15 %, 20 %, and 22.4 %) in 1 M aqueous

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Devaraj, G. "Schemes for Smooth Discretization And Inverse Problems - Case Study on Recovery of Tsunami Source Parameters." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/2719.

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This thesis deals with smooth discretization schemes and inverse problems, the former used in efficient yet accurate numerical solutions to forward models required in turn to solve inverse problems. The aims of the thesis include, (i) development of a stabilization techniques for a class of forward problems plagued by unphysical oscillations in the response due to the presence of jumps/shocks/high gradients, (ii) development of a smooth hybrid discretization scheme that combines certain useful features of Finite Element (FE) and Mesh-Free (MF) methods and alleviates certain destabilizing facto

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Devaraj, G. "Schemes for Smooth Discretization And Inverse Problems - Case Study on Recovery of Tsunami Source Parameters." Thesis, 2016. http://hdl.handle.net/2005/2719.

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This thesis deals with smooth discretization schemes and inverse problems, the former used in efficient yet accurate numerical solutions to forward models required in turn to solve inverse problems. The aims of the thesis include, (i) development of a stabilization techniques for a class of forward problems plagued by unphysical oscillations in the response due to the presence of jumps/shocks/high gradients, (ii) development of a smooth hybrid discretization scheme that combines certain useful features of Finite Element (FE) and Mesh-Free (MF) methods and alleviates certain destabilizing facto

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