When Less is More: Relevance Feedback Falls Short and Term Expansion Succeeds at HARD 2005

Abstract

We used clarification forms to study passage term feedback. When compared against pseudo-relevance feedback with an extremely large external corpus, we found that passage feedback resulted in a reduction in performance while term feedback significantly improved recall.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2006
Accession Number
ADA444098

Entities

People

  • Fernando Diaz
  • James Allan

Organizations

  • University of Massachusetts Amherst

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Algorithms
  • Computer Science
  • Domain Specific Programming Languages
  • Feedback
  • Frequency
  • Information Operations
  • Information Retrieval
  • Judgment
  • Language
  • Materials
  • Precision
  • Training

Readers

  • Information Retrieval
  • Mathematics or Statistics