Loading...
Please wait, while we are loading the content...
Similar Documents
A computer model of text comprehension and question answering for failure analysis
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Braun, Ronald K. Alvarado, Sergio J. Mock, Kenrick J. |
| Organization | The National Aeronautics and Space Administration (NASA) |
| Copyright Year | 1993 |
| Abstract | The research described in this technical report is aimed at extending previous theories of natural language processing and memory search and retrieval. In particular, this research has been concerned with the development of a model of text comprehension and question answering that uses case-based reasoning techniques to acquire knowledge of failure analysis from input text, and answer questions regarding diagnosis and repair of failures in complex systems, such as NASA's Space Station Freedom. The major goal has been to develop a process model that accounts for (a) how to build a knowledge base of system failures and repair procedures from textual descriptions that appear in NASA's FMEA (Failure Modes and Effects Analysis) manuals, and (b) how to use that knowledge base to evaluate causes and effects of failures, and provide diagnosis and repair procedures. This process model has been implemented in an experimental computer program called FANSYS (Failure ANalysis SYStem), which is a text comprehension and question answering system for the analysis of failures occurring within the data management system (DMS) of NASA's Space Station Freedom. This project received funds from NASA Ames Research Center to support three major tasks in a period of a year: (1) analysis of conceptual content of system-failure manuals; (2) characterization of the knowledge structures and processes underlying the computational analysis of failures; and (3) implementation of an experimental version of FANSYS that reads a few segments of the manuals, and answers a number of questions involving failure diagnosis and repair. |
| File Size | 16534535 |
| File Format | |
| Alternate Webpage(s) | http://www.archive.org/details/nasa_techdoc_19960055176 |
| Archival Resource Key | ark:/13960/t78s5m67j |
| Language | English |
| Publisher Date | 1993-01-01 |
| Publisher Institution | Ames Research Center |
| Access Restriction | Open |
| Subject Keyword | Polyimides Flammability Molecular Weight Thermoplasticity Patent Applications Fibers Fabrication Powder (particles) Monomers Textiles Composite Materials Tensile Strength Extruding Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
