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Federal
An Integrated Framework for Model-Based Distributed Diagnosis and Prognosis
National Aeronautics and Space Administration —
Diagnosis and prognosis are necessary tasks for system re- configuration and fault-adaptive control in complex systems. Diagnosis consists of detection, isolation and... -
Federal
Prognostics of Power Electronics, methods and validation testbeds
National Aeronautics and Space Administration —
An overview of the current results of prognostics for DC- DC power converters is presented, focusing on the output filter capacitor component. The electrolytic... -
Federal
An Efficient Deterministic Approach to Model-based Prediction Uncertainty
National Aeronautics and Space Administration —
Prognostics deals with the prediction of the end of life (EOL) of a system. EOL is a random variable, due to the presence of process noise and uncertainty in the... -
Federal
MULTI-LABEL ASRS DATASET CLASSIFICATION USING SEMI-SUPERVISED SUBSPACE CLUSTERING
National Aeronautics and Space Administration —
MULTI-LABEL ASRS DATASET CLASSIFICATION USING SEMI-SUPERVISED SUBSPACE CLUSTERING MOHAMMAD SALIM AHMED, LATIFUR KHAN, NIKUNJ OZA, AND MANDAVA RAJESWARI Abstract.... -
Federal
Discovering System Health Anomalies using Data Mining Techniques
National Aeronautics and Space Administration —
We discuss a statistical framework that underlies envelope detection schemes as well as dynamical models based on Hidden Markov Models (HMM) that can encompass both... -
Federal
Onboard Detection of Snow, Ice, Clouds, and Other Processes
National Aeronautics and Space Administration —
The detection of clouds within a satellite image is essential for retrieving surface geophysical parameters from optical and thermal imagery. Even a small percentage... -
Federal
A Framework for Systematic Benchmarking of Monitoring and Diagnostic Systems
National Aeronautics and Space Administration —
In this paper, we present an architecture and a formal framework to be used for systematic benchmarking of monitoring and diagnostic systems and for producing... -
Federal
Ares I-X Ground Diagnostic Prototype
National Aeronautics and Space Administration —
The automation of pre-launch diagnostics for launch vehicles offers three potential benefits: improving safety, reducing cost, and reducing launch delays. The Ares... -
Federal
Evaluating Algorithm Performance Metrics Tailored for Prognostics
National Aeronautics and Space Administration —
Prognostics has taken center stage in Condition Based Maintenance (CBM) where it is desired to estimate Remaining Useful Life (RUL) of a system so that remedial... -
Federal
RTI Wiki
National Aeronautics and Space Administration —
Under files is the link to the RTI wiki. Research Test and Integration (RTI) focuses on the development of long term plans for test and integration opportunities for... -
Federal
Towards a Framework for Evaluating and Comparing Diagnosis Algorithms
National Aeronautics and Space Administration —
Diagnostic inference involves the detection of anomalous system behavior and the identification of its cause, possibly down to a failed unit or to a parameter of a... -
Federal
RSW-CFL3D-Schuster-Final
National Aeronautics and Space Administration —
The final CFL3D Structured grid used for steady and unsteady computations. The grid required some minor modifications to accommodate the unsteady computations, so it... -
Federal
Website updates
National Aeronautics and Space Administration —
Updates to Website: (Please add new items at the top of this description with the date of the website change) May 9, 2012: Uploaded experimental data in matlab format... -
Federal
Characterizing Variability and Multi-Resolution Predictions
National Aeronautics and Space Administration —
In previous papers, we introduced the idea of a Virtual Sensor, which is a mathematical model trained to learn the potentially nonlinear relationships between spectra... -
Federal
A KNOWLEDGE DISCOVERY STRATEGY FOR RELATING SEA SURFACE TEMPERATURES TO FREQUENCIES OF TROPICAL STORMS AND GENERATING PREDICTIONS OF HURRICANES UNDER 21ST-CENTURY GLOBAL WARMING SCENARIOS
National Aeronautics and Space Administration —
A KNOWLEDGE DISCOVERY STRATEGY FOR RELATING SEA SURFACE TEMPERATURES TO FREQUENCIES OF TROPICAL STORMS AND GENERATING PREDICTIONS OF HURRICANES UNDER 21ST-CENTURY... -
Federal
General Purpose Data-Driven System Monitoring for Space Operations
National Aeronautics and Space Administration —
Modern space propulsion and exploration system designs are becoming increasingly sophisticated and complex. Determining the health state of these systems using...