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Federal
Fleet Level Anomaly Detection of Aviation Safety Data
National Aeronautics and Space Administration —
For the purposes of this paper, the National Airspace System (NAS) encompasses the operations of all aircraft which are subject to air traffic control procedures. The... -
Federal
Aircraft Proximity Maps Based on Data-Driven Flow Modeling
National Aeronautics and Space Administration —
With the forecast increase in air traffic demand over the next decades, it is imperative to develop tools to provide traffic flow managers with the information... -
Federal
Virtual Sensors: Efficiently Estimating Missing Spectra
National Aeronautics and Space Administration —
Various instruments are used to create images of the Earth and other objects in the universe in a diverse set of wavelength bands with the aim of understanding... -
Federal
Algorithms for Speeding up Distance-Based Outlier Detection
National Aeronautics and Space Administration —
The problem of distance-based outlier detection is difficult to solve efficiently in very large datasets because of potential quadratic time complexity. We address... -
Federal
An Overview of Selected Prognostic Technologies with Reference to an Integrated PHM Architecture
National Aeronautics and Space Administration —
This chapter reviewed generic prognosis algorithmic approaches and introduced some of the basics associated with probabilistic predictions and a required architecture... -
Federal
Adaptive Contingency Control: Wind Turbine Operation Integrated with Blade Condition Monitoring
National Aeronautics and Space Administration —
We report here on first steps towards integrating systems health monitoring with adaptive contingency controls. In the scenario considered, the adaptive controller... -
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
Making Predictions using Large Scale Gaussian Processes
National Aeronautics and Space Administration —
One of the key problems that arises in many areas is to estimate a potentially nonlinear function [tex] G(x, \theta)[/tex] given input and output samples [tex] ( X,y... -
Federal
Designing Resource-Bounded Reasoners using Bayesian Networks
National Aeronautics and Space Administration —
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...