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Comparison of Unsupervised Anomaly Detection Methods
Several different unsupervised anomaly detection algorithms have been applied to Space Shuttle Main Engine (SSME) data to serve the purpose of developing a comprehensive suite... -
LUNAR TERRAIN AND ALBEDO RECONSTRUCTION FROM APOLLO IMAGERY
LUNAR TERRAIN AND ALBEDO RECONSTRUCTION FROM APOLLO IMAGERY ARA V NEFIAN, TAEMIN KIM, MICHAEL BROXTON, AND ZACH MORATTO* Abstract. Generating accurate three dimensional... -
Ares I-X Ground Diagnostic Prototype
The automation of pre-launch diagnostics for launch vehicles offers three potential benefits: improving safety, reducing cost, and reducing launch delays. The Ares I-X Ground... -
Discriminative Mixed-Membership Models
Although mixed-membership models have achieved great success in unsupervised learning, they have not been widely applied to classification problems. In this paper, we propose a... -
General Purpose Data-Driven System Monitoring for Space Operations
Modern space propulsion and exploration system designs are becoming increasingly sophisticated and complex. Determining the health state of these systems using traditional... -
Data Submittal Forms & Postprocessing Information
Excel Spreadsheets For Data Submittal -
Transient Region Coverage in the Propulsion IVHM Technology Experiment
Over the last several years researchers at NASA Glenn and Ames Research Centers have developed a real-time fault detection and isolation system for propulsion subsystems of... -
RSW Fully Tet Medium Mesh
This is the fully tetra medium mesh for the RSW based on gridding guidelines. -
CIDU 2010 paper template
CIDU 2010 LaTeX and Microsoft Word templates. -
Bayesian Separation of Non-Stationary Mixtures of Dependent Gaus
In this work, we propose a novel approach to perform Dependent Component Analysis (DCA). DCA can be thought as the separation of latent, dependent sources from their observed... -
COMPLEX NETWORKS IN CLIMATE SCIENCE: PROGRESS, OPPORTUNITIES AND CHALLENGES
COMPLEX NETWORKS IN CLIMATE SCIENCE: PROGRESS, OPPORTUNITIES AND CHALLENGES KARSTEN STEINHAEUSER, NITESH V. CHAWLA, AND AUROOP R. GANGULY Abstract. Networks have been used to... -
Distributed Diagnosis in Uncertain Environments Using Dynamic Bayesian Networks
This paper presents a distributed Bayesian fault diagnosis scheme for physical systems. Our diagnoser design is based on a procedure for factoring the global system bond graph... -
Flight Data For Tail 652
The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the following: -sensor... -
Mixture Density Mercer Kernels: A Method to Learn Kernels
This paper presents a method of generating Mercer Kernels from an ensemble of probabilistic mixture models, where each mixture model is generated from a Bayesian mixture density... -
Designing Resource-Bounded Reasoners using Bayesian Networks
In this work we are concerned with the conceptual design of large-scale diagnostic and health management systems that use Bayesian networks. While they are potentially powerful,... -
Data from Sustainability Base Characterizing Hot Water Pump Differential...
During the heating season in Sustainability Base, a critical alarm associated with a hot water pump circulating heating water for the radiative system which exchanges heat via a... -
Exploring the Model Design Space for Battery Health Management
Battery Health Management (BHM) is a core enabling technology for the success and widespread adoption of the emerging electric vehicles of today. Although battery chemistries... -
Understanding Human Error Based on Automated Analyses vol 1
A proactive approach to identifying and alleviating life-threatening conditions in the aviation system entails a well-defined process of identifying threats, evaluating causes,... -
Sensing and characterization of EMI during intermittent connector anomalies
This paper presents a new on-line methodology for detecting intermittent disconnection failures. The detection principle operates on the fundamental Lorentz Law that states that... -
2010_08_30 Lab
Dataset collected in laboratory conditions on actuators with a jammed ballscrew return channel and actuators with a failed motor.