Information retrieval by constrained spreading activation in semantic networks

Paul R. Cohen, Rick Kjeldsen

Research output: Contribution to journalArticlepeer-review

201 Scopus citations


GRANT is an expert system for finding sources of funding given research proposals. Its search method-constrained spreading activation-makes inferences about the goals of the user and thus finds information that the user did not explicitly request but that is likely to be useful. The architecture of GRANT and the implementation of constrained spreading activation are described, and grant's performance is evaluated.

Original languageEnglish (US)
Pages (from-to)255-268
Number of pages14
JournalInformation Processing and Management
Issue number4
StatePublished - 1987
Externally publishedYes

ASJC Scopus subject areas

  • Information Systems
  • Media Technology
  • Computer Science Applications
  • Management Science and Operations Research
  • Library and Information Sciences


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