Embedding Temporal Constraints for Coordinated Execution in Habitat Automation

A Publication, MARK SCHWABACHER's Collection - 11 years ago

Shared By: MARK SCHWABACHER

Future NASA plans call for long-duration deep space missions with human crews. Because of light-time delay and other considerations, increased autonomy will be needed. This ...

General Purpose Data-Driven System Monitoring for Space Operations

A Publication, MARK SCHWABACHER's Collection - 11 years, 9 months ago

Shared By: MARK SCHWABACHER

Modern space propulsion and exploration system designs are becoming increasingly sophisticated and complex. Determining the health state of these systems using traditional methods is becoming ...

Metrics for Evaluating Performance of Prognostics Techniques

A Publication, EDWARD BALABAN's Collection - 13 years, 5 months ago

Shared By: EDWARD BALABAN

Prognostics is an emerging concept in condition based maintenance (CBM) of critical systems. Along with developing the fundamentals of being able to confidently predict Remaining ...

Using Decision Trees to Detect and Isolate Leaks in the J-2X

Other, MARK SCHWABACHER's Collection - 14 years, 2 months ago

Shared By: MARK SCHWABACHER

Full title: Using Decision Trees to Detect and Isolate Simulated Leaks in the J-2X Rocket Engine Mark Schwabacher, NASA Ames Research Center Robert Aguilar, Pratt ...

Ares I-X Ground Diagnostic Prototype

A Publication, Ares I-X Ground Diagnostic Prototype - 14 years, 2 months ago

Shared By: MARK SCHWABACHER

The automation of pre-launch diagnostics for launch vehicles offers three potential benefits: improving safety, reducing cost, and reducing launch delays. The Ares I-X Ground Diagnostic ...

Mining Distance-Based Outliers in Near Linear Time

A Publication, MARK SCHWABACHER's Collection - 14 years, 2 months ago

Shared By: MARK SCHWABACHER

Full title: Mining Distance-Based Outliers in Near Linear Time with Randomization and a Simple Pruning Rule Abstract: Defining outliers by their distance to neighboring examples ...

Unsupervised Anomaly Detection for Liquid-Fueled Rocket Prop...

A Publication, MARK SCHWABACHER's Collection - 14 years, 2 months ago

Shared By: MARK SCHWABACHER

Title: Unsupervised Anomaly Detection for Liquid-Fueled Rocket Propulsion Health Monitoring. Abstract: This article describes the results of applying four unsupervised anomaly detection algorithms to data ...

Comparison of Unsupervised Anomaly Detection Methods

A Publication, Ashok Srivastava's Collection - 10 years, 10 months ago

Shared By: Ashok Srivastava

Several different unsupervised anomaly detection algorithms have been applied to Space Shuttle Main Engine (SSME) data to serve the purpose of developing a comprehensive suite ...