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Highly Scalable Matching Pursuit Signal Decomposition Algorithm
A Publication, Ashok Srivastava's Collection - 10 years, 3 months ago
Shared By: Ashok Srivastava
In this research, we propose a variant of the classical Matching Pursuit Decomposition (MPD) algorithm with significantly improved scalability and computational performance. MPD is a ...
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Data Mining at NASA: From Theory to Applications
A Publication, Ashok Srivastava's Collection - 10 years, 3 months ago
Shared By: Ashok Srivastava
NASA has some of the largest and most complex data sources in the world, with data sources ranging from the earth sciences, space sciences, and ...
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Classification of Damage Signatures in Composite Plates using On
A Publication, Santanu Das's Collection - 13 years, 7 months ago
Shared By: Santanu Das
Damage characterization through wave propagation and scattering is of considerable interest to many non-destructive evaluation techniques. For fiber-reinforced composites, complex waves can be generated during ...
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Predicting Engine Parameters using the Optical Spectrum
A Publication, Ashok Srivastava's Collection - 10 years, 3 months ago
Shared By: Ashok Srivastava
The Optical Plume Anomaly Detection (OPAD) system is under development to predict engine anomalies and engine parameters of the Space Shuttle's Main Engine (SSME). The ...
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Discovery of Recurring Anomalies in Text Reports
A Publication, Ashok Srivastava's Collection - 10 years, 3 months ago
Shared By: Ashok Srivastava
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 ...
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Onboard Detection of Snow, Ice, Clouds, and Other Processes
A Publication, Ashok Srivastava's Collection - 10 years, 3 months ago
Shared By: Ashok Srivastava
The detection of clouds within a satellite image is essential for retrieving surface geophysical parameters from optical and thermal imagery. Even a small percentage of ...
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Mixture Density Mercer Kernels: A Method to Learn Kernels
A Publication, Ashok Srivastava's Collection - 10 years, 3 months ago
Shared By: Ashok Srivastava
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 ...
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Characterizing Variability and Multi-Resolution Predictions
A Publication, Ashok Srivastava's Collection - 10 years, 3 months ago
Shared By: Ashok Srivastava
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 ...
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Ensemble Approach to Building Mercer Kernels
A Publication, Ashok Srivastava's Collection - 10 years, 3 months ago
Shared By: Ashok Srivastava
This paper presents a new methodology for automatic knowledge driven data mining based on the theory of Mercer Kernels, which are highly nonlinear symmetric positive ...
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Stable and Efficient Gaussian Process Calculations
A Publication, Ashok Srivastava's Collection - 10 years, 3 months ago
Shared By: Ashok Srivastava
The use of Gaussian processes can be an effective approach to prediction in a supervised learning environment. For large data sets, the standard Gaussian process ...
Ashok's Projects (16)
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Vehicle Level Reasoning System-VLRS
5 members
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