DUTIR at TREC 2008 Blog Track

Abstract

For opinion finding task our method of the combination of 5 Windows method and Pseudo Relevance Feedback behaves well, achieving an improvement of over 20% on the baseline adhoc results. For the polarity task we develop two different methods. One is a classification method, and the other uses queries to retrieve positive and negative documents respectively. In Blog Distillation task, Pseudo Relevance Feedback method helps improve the result a little, however, since its dependence on the top 10 retrieval result, the method still need to be improved in order to get better result.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2008
Accession Number
ADA512689

Entities

People

  • Fengming Pan
  • Fuyang Chang
  • Hongfei Lin
  • Jianmei Chen
  • Rui Song
  • Wei Guo

Organizations

  • Dalian University

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Classification
  • Distillation
  • Feedback
  • Human Rights
  • Identification
  • Information Operations
  • Information Retrieval
  • Machine Learning
  • Online Communications
  • Polarity
  • Precision
  • Preprocessing
  • Standards
  • Universities

Fields of Study

  • Computer science

Readers

  • Information Retrieval
  • Systems Analysis and Design