Probabilistic Structured Query Methods

Kareem Darwish, Douglas W. Oard

Research output: Contribution to journalArticle

74 Citations (Scopus)


Structured methods for query term replacement rely on separate estimates of term tes of replacement probabilities. Statistically significantfrequency and document frequency to compute a weight for each query term. This paper reviews prior work on structured query techniques and introduces three new variants that leverage estima improvements in retrieval effectiveness are demonstrated for cross-language retrieval and for retrieval based on optical character recognition when replacement probabilities are used to estimate both term frequency and document frequency.

Original languageEnglish
Pages (from-to)338-344
Number of pages7
JournalSIGIR Forum (ACM Special Interest Group on Information Retrieval)
Issue numberSPEC. ISS.
Publication statusPublished - 1 Dec 2003
Externally publishedYes



  • Arabic
  • CLIR
  • OCR
  • Structured Queries
  • Term Replacement

ASJC Scopus subject areas

  • Hardware and Architecture
  • Management Information Systems

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