Brian Weaver
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View article: 596 Becoming multilingual in thought languages
596 Becoming multilingual in thought languages Open
Objectives/Goals: Understanding cognitive habits and values of individuals or groups, and providing tools to apply them to collaborative, interdisciplinary endeavors to better communicate between different industries, functions, and cultur…
View article: Statistical Validation of Multiple Related Data Sets—Case Study Using Interstellar Boundary Explorer Satellite Data
Statistical Validation of Multiple Related Data Sets—Case Study Using Interstellar Boundary Explorer Satellite Data Open
Space scientists often face the question of whether data collected by different instruments are measurements of the same source population. This paper proposes a statistical validation method for evaluating the agreement between such relat…
View article: Moving Towards Automated Interstellar Boundary Explorer Data Selection with LOTUS
Moving Towards Automated Interstellar Boundary Explorer Data Selection with LOTUS Open
The Interstellar Boundary Explorer (IBEX) satellite collects data on energetic neutral atoms (ENAs) that provide insight into the heliosphere, the region surrounding our solar system and separating it from interstellar space. IBEX collects…
View article: Physiological and Psychological Differences Between 20% Grade Incline-Walking and Level-Grade Jogging at Isocaloric Intensity
Physiological and Psychological Differences Between 20% Grade Incline-Walking and Level-Grade Jogging at Isocaloric Intensity Open
High-incline walking is a relatively new trend with little comparative information. This study compared physiological and psychological differences between high-incline walking at 20% grade (HIW) and level-grade jogging (LGJ) at isocaloric…
View article: Empirical Validation of a New Data Product from the Interstellar Boundary Explorer Satellite
Empirical Validation of a New Data Product from the Interstellar Boundary Explorer Satellite Open
Since 2008, the Interstellar Boundary Explorer (IBEX) satellite has been gathering data on heliospheric energetic neutral atoms (ENAs) while being exposed to various sources of background noise, such as cosmic rays and solar energetic part…
View article: Towards Improved Heliosphere Sky Map Estimation with Theseus
Towards Improved Heliosphere Sky Map Estimation with Theseus Open
The Interstellar Boundary Explorer (IBEX) satellite has been in orbit since 2008 and detects energy-resolved energetic neutral atoms (ENAs) originating from the heliosphere. Different regions of the heliosphere generate ENAs at different r…
View article: Design and analysis for placement of RFID tags on nuclear material containers in a mockup test environment [Slides]
Design and analysis for placement of RFID tags on nuclear material containers in a mockup test environment [Slides] Open
equipment, two temperatures separated by at least 50C would be an acceptable backup plan. To ensure a safe range of conditions is used, we are executing 24-hour step tests. For these, we will apply the stress for 24 hours and then measure …
View article: Formal Experimentation and Analysis of Handheld RFID Readers as a Tool for Nuclear Material Accounting
Formal Experimentation and Analysis of Handheld RFID Readers as a Tool for Nuclear Material Accounting Open
Commercial, off-the-shelf Radio Frequency Identification (RFID) systems have been successfully deployed for inventory tracking in numerous industries, but their viability in the tracking of complex environments containing nuclear material …
View article: Statistical methods for partitioning ribbon and globally-distributed flux using data from the Interstellar Boundary Explorer
Statistical methods for partitioning ribbon and globally-distributed flux using data from the Interstellar Boundary Explorer Open
ASA's Interstellar Boundary Explorer (IBEX) satellite collects data on energetic neutral atoms (ENAs) that can provide insight into the heliosphere boundary between our solar system and interstellar space. Using these data, scientists can …
View article: Accelerated Event Times with Multiple Thresholds
Accelerated Event Times with Multiple Thresholds Open
In some systems lowering any one of several stress variables limits the extent to which the others are able to accelerate random event times. That is, each stress variable can cap acceleration of the time to failure distribution, independe…
View article: Towards Improved Heliosphere Sky Map Estimation with Theseus
Towards Improved Heliosphere Sky Map Estimation with Theseus Open
The Interstellar Boundary Explorer (IBEX) satellite has been in orbit since 2008 and detects energy-resolved energetic neutral atoms (ENAs) originating from the heliosphere. Different regions of the heliosphere generate ENAs at different r…
View article: Accelerated Event Times with Multiple Thresholds
Accelerated Event Times with Multiple Thresholds Open
In some systems lowering any one of several stress variables limits the extent to which the others are able to accelerate random event times. That is, each stress variable can cap acceleration of the time to failure distribution, independe…
View article: Program Repository for Tools for Heliophysics Science (Theseus)
Program Repository for Tools for Heliophysics Science (Theseus) Open
This software is being developed to support data analysis and simulation for the growing field of outer heliosphere physics. In particular, this software will allow data analysis, inference, and simulation of physical mechanisms describing…
View article: Towards Improved Heliosphere Sky Map Estimation with Theseus
Towards Improved Heliosphere Sky Map Estimation with Theseus Open
The Interstellar Boundary Explorer (IBEX) satellite has been in orbit since 2008 and detects energy-resolved energetic neutral atoms (ENAs) originating from the heliosphere. Different regions of the heliosphere generate ENAs at different r…
View article: ANDROMEDA Summer 2022 Progress: Effects of sub-surface temperature and surface compositions on the measurement of neutron lifetime using a space-based neutron spectrometer [Slides]
ANDROMEDA Summer 2022 Progress: Effects of sub-surface temperature and surface compositions on the measurement of neutron lifetime using a space-based neutron spectrometer [Slides] Open
measurement, we estimate the neutron lifetime to be 780 ± 60stat ± 70syst s, thereby demonstrating the viability of this new approach.
View article: Analyzing count data with measurement error
Analyzing count data with measurement error Open
In this article, we analyze observed count data such as the number of defects in a steel product where the observed counts are the true counts measured with errors. We account for the measurement error by using a measurement error model ba…
View article: Gauge R & R studies for angular measurements
Gauge R & R studies for angular measurements Open
Angular measurements lie on the circumference of a circle and have different characteristics than standard scalar measurements. For applications involving angular data, treating the measured values as scalars can lead to misinterpretation …
View article: Bayesian simultaneous prediction intervals and bounds for a finite population
Bayesian simultaneous prediction intervals and bounds for a finite population Open
Simultaneous prediction intervals and bounds provide a statistical characterization of a proportion of a finite population. In this article we consider these predictions from a Bayesian inferential approach and different ways to evaluate t…
View article: Combining Observational and Computational Uncertainty in Calibration Experiments
Combining Observational and Computational Uncertainty in Calibration Experiments Open
Traditional computer experiments using emulators have treat the emulator output as containing no error; however, this is not always feasible, as there exist computational codes which produce stochastic output, and future computations may r…
View article: Nuclear Data Dimension Reduction
Nuclear Data Dimension Reduction Open
Our nuclear data consist of 30 energy group cross sections as well as nubar and PFNS. They are sampled from a Gaussian distribution with correlations shown in Figure 1. A few of these samples are shown in Figure 2. The purpose of this sect…
View article: Extreme Values in the Radiation Belts: How Big and How Bad? [Slides]
Extreme Values in the Radiation Belts: How Big and How Bad? [Slides] Open
Overall Point: Once a radiation belt event has begun, how intense will it be and how long will it last?
View article: Model Emulation and Calibration: Uncertainty Quantification and Making Inference with Simulation
Model Emulation and Calibration: Uncertainty Quantification and Making Inference with Simulation Open
This report discusses using computational physics models to make statistical and scientific inferences.
View article: Applications of Quantum Annealing in Statistics
Applications of Quantum Annealing in Statistics Open
Quantum computation offers exciting new possibilities for statistics. This paper explores the use of the D-Wave machine, a specialized type of quantum computer, which performs quantum annealing. A general description of quantum annealing t…