Web-based Pseudo Relevance Feedback for Microblog Retrieval

Abstract

This paper presents the experiments and results for the QCRI participation in the TREC Microblog track 2012. In this year, we apply a query expansion approach for improving the retrieval results in microblog search. Our approach performs web-search with the original query to get web results appeared at the same period of the query; then it extracts the webpage title of the first web result and uses it as an expansion to the original query before applying microblog search. Our results show a significant improvement to the baseline and significantly better results than the median result achieved in the track. We also report one run in the filtering task that applies straightforward technique for retrieval score threshold selection.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2012
Accession Number
ADA581774

Entities

People

  • Ahmed S. El Din
  • Walid Magdy

Tags

Communities of Interest

  • Biomedical
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Algorithms
  • Feedback
  • Filtration
  • Governments
  • Information Operations
  • Language
  • Machine Learning
  • Middle East
  • Normal Distribution
  • Precision
  • Standards
  • Training

Fields of Study

  • Computer science

Readers

  • Information Retrieval
  • Systems Analysis and Design