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Federal
Tackling V&V for Prognostics
National Aeronautics and Space Administration —
We believe our approach to gathering and organizing prognostics V&V information from relevant literature, and then applying it to our specific prognostics... -
Federal
Solving a prisoner's dilemma in distributed anomaly detection
National Aeronautics and Space Administration —
Anomaly detection has recently become an important problem in many industrial and financial applications. In several instances, the data to be analyzed for possible... -
Federal
Application of Model Based Prognostics to Pneumatic Valves in a Cryogenic Propellant Loading Testbed
National Aeronautics and Space Administration —
Pneumatic-actuated valves are critical components in many applications, including cryogenic propellant loading for space operations. For these components, failures... -
Federal
Model-based Prognostics under Limited Sensing
National Aeronautics and Space Administration —
Prognostics is crucial to providing reliable condition-based maintenance decisions. To obtain accurate predictions of component life, a variety of sensors are often... -
Federal
An Event-based Distributed Diagnosis Framework using Structural Model Decomposition
National Aeronautics and Space Administration —
Complex engineering systems require efficient on-line fault diagnosis methodologies to improve safety and reduce maintenance costs. Traditionally, diagnosis... -
Federal
images_BSCW
National Aeronautics and Space Administration —
image files for the BSCW configuration webpages. -
Federal
Vehicle-Level Reasoning Systems: Integrating System-Wide data to Estimate Instantaneous Health State
National Aeronautics and Space Administration —
One of the primary goals of Integrated Vehicle Health Management (IVHM) is to detect, diagnose, predict, and mitigate adverse events during the flight of an aircraft,... -
Federal
Trajectory Clustering and an Application to Airspace Monitoring
National Aeronautics and Space Administration —
This paper presents a framework aimed at monitoring the behavior of aircraft in a given airspace. Trajectories that constitute typical operations are determined and... -
Federal
Anomica: Fast Support Vector Based Novelty Detection
National Aeronautics and Space Administration —
In this paper we propose ν-Anomica, a novel anomaly detection technique that can be trained on huge data sets with much reduced running time compared to the benchmark... -
Federal
HIRENASD Beam FEM
National Aeronautics and Space Administration —
This contains attempts to create BEAM FEM model. I have started a Blog to discuss this... please put your comments there and I will attempt to keep everything... -
Federal
DXC'09 Framework
National Aeronautics and Space Administration —
The DXC Framework is a collection of programs and APIs for running and evaluating diagnostic algorithms (DAs). It is complementary to system XML catalogs and... -
Federal
Health Monitoring and Prognostics for Computer Servers
National Aeronautics and Space Administration —
Abstract Prognostics solutions for mission critical systems require a comprehensive methodology for proactively detecting and isolating failures,... -
Federal
Ensemble Data Mining Methods
National Aeronautics and Space Administration —
Ensemble Data Mining Methods, also known as Committee Methods or Model Combiners, are machine learning methods that leverage the power of multiple models to achieve... -
Federal
Discovery of Recurring Anomalies in Text Reports
National Aeronautics and Space Administration —
This paper describes the results of a significant research and development effort conducted at NASA Ames Research Center to develop new text mining algorithms to... -
Federal
Block-GP: Scalable Gaussian Process Regression for Multimodal Data
National Aeronautics and Space Administration —
Regression problems on massive data sets are ubiquitous in many application domains including the Internet, earth and space sciences, and finances. In many cases,... -
Federal
Removing Spikes While Preserving Data and Noise using Wavelet Filter Banks
National Aeronautics and Space Administration —
Many diagnostic datasets suffer from the adverse effects of spikes that are embedded in data and noise. For example, this is true for electrical power system data... -
Federal
Third International Diagnostic Competition - DXC'11 Slides
National Aeronautics and Space Administration —
Slides presented at DXC'11 session of 22nd International Workshop on Principles of Diagnosis -
Federal
Distributed Anomaly Detection using 1-class SVM for Vertically Partitioned Data
National Aeronautics and Space Administration —
There has been a tremendous increase in the volume of sensor data collected over the last decade for different monitoring tasks. For example, petabytes of earth... -
Federal
Prognostics in the Control Loop
National Aeronautics and Space Administration —
The term Automated Contingency Management (ACM) has been used to describe intelligent systems capable of mission re-planning and control reconfiguration in the...