Discovery of Recurring Anomalies in Text Reports

Description

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 discover anomalies in free-text reports regarding system health and safety of two aerospace systems. We discuss two problems of significant import in the aviation industry. The first problem is that of automatic anomaly discovery concerning an aerospace system through the analysis of tens of thousands of free-text problem reports that are written about the system. The second problem that we address is that of automatic discovery of recurring anomalies, i.e., anomalies that may be described in different ways by different authors, at varying times and under varying conditions, but that are truly about the same part of the system. The intent of recurring anomaly identification is to determine project or system weakness or high-risk issues. The discovery of recurring anomalies is a key goal in building safe, reliable, and cost-effective aerospace systems.

Resources

Name Format Description Link
33 Paper https://c3.nasa.gov/dashlink/static/media/publication/IEEE_TextMiningPaper_vrs4_2.pdf
34 AIRXAMAP_005.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/AIRXAMAP_005.png
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/AIRXAMAP_005.html
21 Access the data via HTTPS. https://airsl1.gesdisc.eosdis.nasa.gov/data/Aqua_AIRS_Level1/AIRXAMAP.005/
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=AIRXAMAP+005
21 AIRS home page at NASA/JPL. General information on the AIRS instrument,algorithms, and other AIRS-related activities can be found. https://airs.jpl.nasa.gov/index.html
21 AIRS Documentation Page https://disc.gsfc.nasa.gov/information/documents?title=AIRS+Documentation
33 README Document https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.3_ScienceDataProductDocumentation/3.3.4_ProductGenerationAlgorithms/ReadmeAIRSGranuleMap.pdf

Tags

  • dashlink
  • nasa
  • ames

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