6,536 research outputs found
Electron beam instrument for measuring electric fields Patent
Electron beam deflection devices for measuring electric field
Performance improvement analysis for the Apollo unified S-band system Semiannual progress report
Performance improvement analysis for Apollo unified S band system, including computerized simulation techniques and phase lock loop studie
Simulation and study of small numbers of random events
Random events were simulated by computer and subjected to various statistical methods to extract important parameters. Various forms of curve fitting were explored, such as least squares, least distance from a line, maximum likelihood. Problems considered were dead time, exponential decay, and spectrum extraction from cosmic ray data using binned data and data from individual events. Computer programs, mostly of an iterative nature, were developed to do these simulations and extractions and are partially listed as appendices. The mathematical basis for the compuer programs is given
Learning from Scarce Experience
Searching the space of policies directly for the optimal policy has been one
popular method for solving partially observable reinforcement learning
problems. Typically, with each change of the target policy, its value is
estimated from the results of following that very policy. This requires a large
number of interactions with the environment as different polices are
considered. We present a family of algorithms based on likelihood ratio
estimation that use data gathered when executing one policy (or collection of
policies) to estimate the value of a different policy. The algorithms combine
estimation and optimization stages. The former utilizes experience to build a
non-parametric representation of an optimized function. The latter performs
optimization on this estimate. We show positive empirical results and provide
the sample complexity bound.Comment: 8 pages 4 figure
Familicide: Risk Factors, Characteristics of the Offender, Characteristics of the Crime of Familicide, and the Prevalence of Suicide Following Familicide
This study will be examining the risk factors to familicide, the characteristics of the offenders of familicide, the characteristics of the crime, and the prevalence of suicide following familicide. Of the literature reviewed it has been found that there are risk factors to familicide, there are known characteristics of the crime of familicide, and suicide is prevalent following familicide (Wilson et at., 1995; Brewer & Paulsen, 1999; Harper &Voigt, 2007). Findings are expected to suggest that there will be a higher proportion of cases in which the offender felt as though they were under immense stress due to the stresses and expectations of society, there will be a higher proportion of male offenders that commit suicide following familicide, that a larger proportion of familicide cases occurred in homes in which stepchildren did reside, and that indicate pre-existing drug and alcohol use is prevalent in the offenders of familicide
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