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Filtering by: Creator Zurek, Wojciech H. Remove constraint Creator: Zurek, Wojciech H. Degree Level Master's Remove constraint Degree Level: Master's

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  • Two dimensional recursive fast Fourier transform

    Creator:
    Zhu, Feihong
    Abstract:
    Figures 5-13 in original document are black and white photocopies. Best scan available
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Redacted for Privacy Wojciech J. Kolodziej The purpose of this thesis is to extend one

  • An expert system for optimal tuning of adaptive PID regulators

    Creator:
    Saugen, John David
    Abstract:
    "Expert systems" is an area in the field of artificial intelligence which attempts to encode an "expert's" heuristic knowledge and reasoning ability into a computer program. The purpose of this study is to investigate the applicability of using an "expert system" in a closed-loop automatic control system. An "expert system"...
    Resource Type:
    Masters Thesis
    Full Text:
    TUNING OF ADAPTIVE PID REGULATORS Redacted for privacy Abstract approved: Wojciech J. Kolodziej

  • Tracer transport in the Martian atmosphere as simulated by a Mars GCM

    Creator:
    Walsh, Thomas D.
    Abstract:
    This paper investigates the atmospheric circulation and transport characteristics of the Martian atmosphere (as modeled by a Mars GCM) for three sets of conditions. The conditions are based on a combination of season and dust loading (as parameterized by the optical depth, τ). The first experiment is for the Northern...
    Resource Type:
    Masters Thesis
    Full Text:
    strength of eddy mixing. Others [Conrath, 1971; Zurek, 1976; Kong and McElroy, 1977; Toon et al., 1977

  • Theoretical physics takes root in America : John Archibald Wheeler as student and mentor

    Creator:
    Christensen, Terry M.
    Abstract:
    John Archibald Wheeler (09 July 1911- ) is a familiar name to physicists and historians of physics alike. Among his many contributions to the corpus of knowledge, in 1939 John Wheeler and Niels Bohr co-authored the first paper on the generalized mechanism of nuclear fission. Beyond that seminal work, Wheeler...
    Resource Type:
    Masters Thesis
    Full Text:
    (Woodbury, NY: American Institute of Physics Press, 1995), 117-118; Kip S. Thorne and Wojciech H. Zurek

  • Redundant information in a spin system beyond pure decoherence

    Creator:
    Svesko, Andrew M.
    Abstract:
    Quantum physics in the Copenhagen interpretation places an unsatisfying divide between the quantum and classical worlds. Decoherence -- the destruction of superposition states of the system -- helps us understand how the quantum transitions to the classical. Quantum Darwinism builds on decoherence to understand how information about the system is...
    Resource Type:
    Masters Thesis
    Full Text:
    vector |ψ(t)〉 in a Hilbert space H. II Quantum time evolution is unitary, i.e., state vector |ψ(t

  • The effects of clouds on transient baroclinic eddies in a Mars General Circulation Model

    Creator:
    Rucker, Michael S.
    Abstract:
    The low-level baroclinic eddy activity seen in the NASA Ames Mars General Circulation Model (MGCM) for simulations under three annual dust cycles are characterized. Simulations were conducted with both radiatively active and radiatively inert clouds (RAC and non-RAC, respectively) for 11 continuous annual cycles for each dust case. Model results...
    Resource Type:
    Masters Thesis
    Full Text:
    Mars’ dust storm season, which nominally occurs between Ls = 160-330◦ [Martin and Zurek, 1993]. The

  • Poisoning machine learning models to increase membership inference risks

    Creator:
    Le, Hoang
    Abstract:
    Deep learning is now being utilized widely in applications where sensitive data is being used for model training, for example, in health care. In this scenario, any data leakage will cause privacy concerns to whose data records are used to train the model. An attacker can actively cause privacy leakage...
    Resource Type:
    Masters Thesis
    Full Text:
    ] Liam H Fowl, Jonas Geiping, Steven Reich, Yuxin Wen, Wojciech Czaja, Micah Goldblum, and Tom Goldstein

  • Robust Reference-Free Sim-to-Real Reinforcement Learning for Bipedal Locomotion

    Creator:
    Siekmann, Jonah A.
    Abstract:
    In recent years, model-free Deep Reinforcement Learning (RL) has become an increasingly popular alternative to more traditional model-based or optimization-based control methods in solving robotic legged locomotion. However, deploying RL in the real world can be a significant undertaking. Constructing reward functions which compel controllers to learn the desired behavior...
    Resource Type:
    Masters Thesis

  • Baroclinic eddies in the Martian atmosphere : a general circulation model study

    Creator:
    Matheson, Mark
    Abstract:
    A variety of general circulation model experiments are performed to investigate the influence of seasonality and topography on the strength of baroclinic eddies in the Martian atmosphere. Three different models are used: a full physics model, a simplified physics model, and a zonally symmetric simplified physics model. All three models...
    Resource Type:
    Masters Thesis
    Full Text:
    Rossby radius of deformation (A = NH/f, where N is the static stability, H is the scale height of the

  • Exploring Outlier Exposure Methods for Deep Margin-Based Anomaly Detection

    Creator:
    Noel, Thomas
    Abstract:
    In standard training regimes, one assumes that the classes presented to a model constitute all of the classes that the model will encounter when it is deployed. In real deployment scenarios, however, a model can sometimes encounter situations or objects that it has never seen. When these scenarios are safety-critical,...
    Resource Type:
    Capstone Project
    Full Text:
    numerical stability in the loss computation. 3.2 Cross-Entropy Loss Cross-entropy is defined as H(y,p