AviationKnowledge Research Program

Institute of Cognitive Science (ICS)
University of Colorado at Boulder

Dr. Peter G. Polson, Principal Investigator
Dr. Marilyn Hughes Blackmon, co-Principal Investigator
Richard Brown, M.S., Computer Science, consultant
Karl Fennell, M.A., consultant, subject matter expert

Contact: blackmon@colorado.edu, phone 303-859-5060

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Aviation Cognitive Walkthrough LSA tools

LSA tools: Similarity of meaning (LSA cosine)

Confusable headings/links analysis: Matrix of LSA cosines

One-to-many comparison: LSA cosines

Coherence tool for sentence-to-sentence coherence within a paragraph or longer text

Paragraph-to-paragraph coherence tool


LSA tools: Elaborate with background knowledge (LSA near neighbors)

Elaborate links: Find LSA near neighbors with minimum word frequency and minimum cosine


LSA tools: Word frequency (frequency within selected LSA semantic space)

Frequency analysis: Find frequency of words/terms in semantic space

Find all low frequency words in a paragraph or multi-paragraph text


LSA tools: Depth of meaning for a concept (LSA term vector length)

Unfamiliar headings/links analysis: LSA term vector lengths


Convenient combinations of 2 LSA tools

Goal-specific competing headings/links analysis: Elaborate links + One-to-many comparison


This material is based upon work supported by the NASA. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of NASA.