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Filtering by: Creator McKinnon, P. F. Remove constraint Creator: McKinnon, P. F. Committee Member Raich, Raviv Remove constraint Committee Member: Raich, Raviv

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  • Adiabatic Markov Decision Process : convergence of value iteration algorithm

    Creator:
    Duong, Thai
    Abstract:
    Markov Decision Process (MDP) is a well-known framework for devising the optimal decision making strategies under uncertainty. Typically, the decision maker assumes a stationary environment which is characterized by a time-invariant transition probability matrix. However, in many real-world scenarios, this assumption is not justified, thus the optimal strategy might not...
    Resource Type:
    Masters Thesis
    Full Text:
    ' ) ≥ Φ(i)min{p0( j|s,a), p0( j|s ,a ' )+ ' ' ' +(1 − Φ(i))min{p f ( j|s,a), p f ( j|s ,a ' ) ∀ j,s,a

  • Data Collection in Sensor Networks via the Novel Fast Markov Decision Process Framework

    Creator:
    Duong, Thai
    Abstract:
    We investigate the data collection problem in sensor networks. The network consists of a number of stationary sensors deployed at different sites for sensing and storing data locally. A mobile element moves from sites to sites to collect data from the sensors periodically. There are different costs associated with the...
    Resource Type:
    Masters Thesis
    Full Text:
    chain with state space S, and let πmin := minx∈S π(x). Then 1 1 tmix(f) ≤ log . (3.3) 1 − µ(P) f

  • Kalman Filter Tracking for an FSO Communication System based on Dynamic Beam Steering and Shaping

    Creator:
    Bouchard, Luc F.
    Abstract:
    We present a theoretical free-space optical (FSO) transmitter that utilizes a dynamically steered and shaped laser beam to communicate with a randomly moving receiver adorned with a retroreflector. The transmitter tracks the receiver's position by repeatedly scanning the field of view (FOV), measuring reflections from the retroreflector, and estimating the...
    Resource Type:
    Masters Thesis
    Full Text:
    A ng ul ar P os iti on ( ) 0.2 0.4 0.6 0.8 1.0 (b) FIGURE 3.1: (a) A donut-shaped

  • iMAC : improved medium access control for multi-channel multi-hop wireless networks

    Creator:
    Maiya, Megha
    Abstract:
    Trends in wireless networks are increasingly pointing towards a future with multi-hop networks deployed in multi-channel environments. In this thesis, we present the design for iMAC—a protocol targeted at medium access control in such environments. iMAC uses control packets on a common control channel to faciliate a three-way handshake between...
    Resource Type:
    Masters Thesis
    Full Text:
    Area of environment m Number of channels η Network load F Number of flows Ri Bandwidth rate of ith flow

  • Predicting Properties of Bio-jet Fuels using Machine Learning and ATR-FTIR Spectroscopy

    Creator:
    Mayer, Morgan A.
    Abstract:
    High-potential molecules derived from biomass sources may suitably replace or supplement traditional nonrenewable hydrocarbon fuels to reduce pollution and fuel processing costs. Due to expensive and time-consuming property testing, models that predict key properties from optical data would initially vet potential additives before investment and bench-scale testing. Attenuated Total Reflection...
    Resource Type:
    Masters Thesis
    Full Text:
    variables to reduce overfitting. I included the bio-jet fuel blends of F-24 with p-menthane, pinane

  • Action Selection for Heterologous Control of a Continuous-Output Myoelectric Prosthesis

    Creator:
    Sylwester, Sean T.
    Abstract:
    Significance: Movement intent decoding algorithms can interpret human bioelectrical signals to control prosthetic limbs with many degrees of freedom (DOFs). This work involves decoding volitional movement intent from surface electromyogram (sEMG) signals to control prosthetic arms. To train these algorithms, patients flex their muscles to “follow” a movement prompt, and...
    Resource Type:
    Masters Thesis
    Full Text:
    MedianRef map- ping (p = 0.0017, p = 0.0497, respectively). The Action Screening algorithm also

  • High efficiency wideband low-power delta-sigma modulators

    Creator:
    Lee, Sang Hyeon
    Abstract:
    Delta-sigma analog-to-digital converters traditionally have been used for low speed, high resolution applications such as measurements, sensors, voice and audio systems. Through continued device scaling in CMOS technology and architectural and circuit level design innovations, they have even become popular for wideband, high dynamic range applications such as wired and...
    Resource Type:
    Dissertation
    Full Text:
    -50 0 Frequency , f / f s P S D , d B signal band edge integrated noises 1st-order

  • Sliding Mode Control of Oscillating Water Column Wave Energy Converters

    Creator:
    Brown, Danielle R.
    Abstract:
    This thesis concerns the development of a direct torque control strategy using a sliding mode control approach to optimize the power output of an oscillating water column (OWC) wave energy converter (WEC). The OWC WEC is a device that has a submerged vertical tail tube open at both ends, which...
    Resource Type:
    Masters Thesis
    Full Text:
    pressure, p∗i = pi − pat pat . (2.6) The hydrodynamic interaction force F I incorporates the added mass

  • Parameter estimation of Gaussian hierarchical model using Gibbs sampling

    Creator:
    Mbuthia, Juliana
    Abstract:
    Gibbs sampling method is an important tool used in parameter estimation for many probabilistic models. Specifically, for many scenarios, it is difficult to generate high-dimensional data samples from its joint distribution. The Gibbs sampling provides a way to draw high-dimensional data via the conditional distributions which are typically easier to...
    Resource Type:
    Masters Thesis
    Full Text:
    Bayesian analysis by just looking at the Bayesian theorem. f(θ|X) = p(θ,X) m(X) = f(x|θ)p(θ)∫ f(x|θ)p(θ)d

  • Optimal load and resource balance in internet distributed systems

    Creator:
    Nishida, Hiroshi
    Abstract:
    A distributed system is a network of multiple autonomous computational nodes designed primarily for performance scalability and robustness. The performance of a distributed system depends critically on how tasks and resources are distributed among the nodes. Thus, a main thrust in distributed system research is to design schemes for distributing...
    Resource Type:
    Dissertation
    Full Text:
    Resource Balance in Internet Distributed Systems Abstract approved: Thinh P. Nguyen A distributed system