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 10 of 10 for “"Evolution Strategies"”.
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Scalable hierarchical evolution strategies
… investigating a novel method combining Scalable Evolution Strategies (SES) and HRL. S-ES, named for its excellent scalability, was popularised by Open AI when they showed its performance to be comparable to state-of-the art policy gradient methods. However, S-ES has not been tested in conjunction …
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Efficient Modeling, Optimization, and LLM-Assisted Decision Support for Geothermal Well Arrays
… production. I evaluate several optimization strategies such as Bayesian optimization, particle swarm optimization, natural evolution strategies, differential evolution optimization, Nelder-Mead, and simulated annealing on various performance characteristics such as convergence speed and …
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Enzyme and Directed Evolution Technologies For Nerve Agent Neutralisation
… approach has been the application of directed-evolution strategies. The aim of the present work has been to create variants of PTE with an increased catalytic efficiency towards OPs nerve agents. To this end, a directed evolution platform was developed to enable screening for organophosphatase …
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On Bilevel Optimization without Full Unrolls: Methods and Applications
… both of these issues, we introduce Persistent Evolution Strategies (PES), an approach for computing unbiased gradient estimates of parameters that govern a dynamical system, using only partial unrolls of the system. PES estimates the gradient of a Gaussian-smoothed objective, allowing for …
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Evolutionary design of digital trajectory-tracking controllers for robotic manipulators
… in this thesis. In particular, the following evolutionary optimisation techniques are used to design digital trajectorytracking controllers for robotic manipulators:(i) genetic algorithms,(ii) non-adaptive evolution strategies(iii) adaptive evolution strategies.It is shown that, with …
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New strategies for in vivo continuous directed evolution
Continuous in vivo directed evolution facilitates the exploration of large biomolecule libraries at unprecedented speeds. By inserting a biomolecule of interest into a constantly mutating virus whose replicative capacity has been rendered dependent on the desired activity of that biomolecule, the …
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Adaptive Laboratory Evolution of Scenedesmus obliquus for Increased Carbohydrate Content and Biomass Productivity
… This thesis explores two adaptive laboratory evolution strategies for improving <em>Scenedesmus obliquus</em>: single UV-mutagenesis and low light cultivation at a high dilution rate to produce cultigens with greater carbohydrate content and iterative UV-mutagenesis and selection under outdoor …
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Stochastic inversion for core field modeling using satellite data
Magnetfeldmodellierung mit Kugelflächenfunktionen basiert auf der Inversion nach hunderten bis tausenden von Parametern. Dieses hochdimensionale Problem kann grundsätzlich als ein Optimierungsproblem formuliert werden, bei dem ein globales Minimum einer gewissen Zielfunktion berechnet werden soll. …
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Intelligent dynamic signal timing optimization program
In this research the development of a signal timing optimization model for oversaturated urban traffic networks with stochastic driver behavior and vehicle arrival headway is presented. The model is called Intelligent Dynamic Signal Timing Optimization Program or IDSTOP. IDSTOP is formulated as a …
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Angina renal. Caracterización de las herramientas de predicción de lesión renal aguda en cuidado intensivo adultos
Introducción. La lesión renal aguda (LRA) se caracteriza por una disminución abrupta de la función renal que desencadena graves consecuencias a largo plazo. La predicción del desarrollo de LRA en la unidad de cuidados intensivos (UCI) es limitada. Por lo tanto, se caracterizaron tres herramientas …