643 datasets found
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Federal
An Approach to Prognostic Decision Making in the Aerospace Domain
National Aeronautics and Space Administration —
The field of Prognostic Health Management (PHM) has been undergoing rapid growth in recent years, with development of increasingly sophisticated techniques for... -
Federal
Information-Theoretic Methods for Identifying Relationships amon
National Aeronautics and Space Administration —
Information-theoretic quantities, such as entropy, are used to quantify the amount of information a given variable provides. Entropies can be used together to compute... -
Federal
nu-Anomica: A Fast Support Vector Based Anomaly Detection Technique
National Aeronautics and Space Administration —
In this paper we propose $\nu$-Anomica, a novel anomaly detection technique that can be trained on huge data sets with much reduced running time compared to the... -
Federal
Estimation of Time Varying Autoregressive Symmetric Alpha Stable
National Aeronautics and Space Administration —
In this work, we present a novel method for modeling time-varying autoregressive impulsive signals driven by symmetric alpha stable distributions. The proposed method... -
Federal
RSW Mixed Element Fine Grid
National Aeronautics and Space Administration —
This is the RSW Mixed Element Unstructured Fine Grid Set. -
Federal
Empirical Evaluation of Diagnostic Algorithm Performance Using a Generic Framework
National Aeronautics and Space Administration —
A variety of rule-based, model-based and datadriven techniques have been proposed for detection and isolation of faults in physical systems. However, there have been... -
Federal
Comparison of Two Probabilistic Fatigue Damage Assessment Approaches Using Prognostic Performance Metrics
National Aeronautics and Space Administration —
A general framework for probabilistic prognosis using maximum entropy approach, MRE, is proposed in this paper to include all available information and uncertainties... -
Federal
A Comparison of Filter-based Approaches for Model-based Prognostics
National Aeronautics and Space Administration —
Model-based prognostics approaches use domain knowledge about a system and its failure modes through the use of physics-based models. Model-based prognosis is... -
Federal
Prognostics Health Management and Physics based failure Models for Electrolytic Capacitors
National Aeronautics and Space Administration —
This paper proposes first principles based modeling and prognostics approach for electrolytic capacitors. Electrolytic capacitors and MOSFETs are the two major... -
Federal
PADMINI: A PEER-TO-PEER DISTRIBUTED ASTRONOMY DATA MINING SYSTEM AND A CASE STUDY
National Aeronautics and Space Administration —
PADMINI: A PEER-TO-PEER DISTRIBUTED ASTRONOMY DATA MINING SYSTEM AND A CASE STUDY TUSHAR MAHULE, KIRK BORNE, SANDIPAN DEY, SUGANDHA ARORA, AND... -
Federal
Entropy-based Probabilistic Fatigue Damage Prognosis and Algorithmic Performance Comparison
National Aeronautics and Space Administration —
In this paper, a maximum entropy-based general framework for probabilistic fatigue damage prognosis is investigated. The proposed methodology is based on an... -
Federal
Activity modeling under uncertainty by trace of objects in smart homes
National Aeronautics and Space Administration —
A typical resident of a smart home can be an Alzheimer patient that forgets sometimes to complete the activities that he begins. The key point to assist the smart... -
Federal
2010_09_10_jam_-40 Lab
National Aeronautics and Space Administration —
Jam fault scenarios with tensile (-40 lbs) load (diagnostic and prognostic). -
Federal
Assurance for Complex Systems
National Aeronautics and Space Administration —
Presentation given by SRI NRA winners on Verification and Validation for Complex Systems. -
Federal
Bonissone CIDU Presentation: Design of Local Fuzzy Models
National Aeronautics and Space Administration —
After reviewing key background concepts in fuzzy systems and evolutionary computing, we will focus on the use of local fuzzy models, which are related to both kernel... -
Federal
Learning curve for Apriori fix
National Aeronautics and Space Administration —
not available -
Federal
Improving Multiple Fault Diagnosability using Possible Conflicts
National Aeronautics and Space Administration —
Multiple fault diagnosis is a difficult problem for dynamic systems. Due to fault masking, compensation, and relative time of fault occurrence, multiple faults can... -
Federal
First International Diagnosis Competition - DXC'09 Slides
National Aeronautics and Space Administration —
Slides presented at DXC'09 session of 20th International Workshop on Principles of Diagnosis -
Federal
A Survey of Artificial Intelligence for Prognostics
National Aeronautics and Space Administration —
Integrated Systems Health Management includes as key elements fault detection, fault diagnostics, and failure prognostics. Whereas fault detection and diagnostics...
643 datasets found