DUTIR at TREC 2009: Chemical IR Track

Abstract

This paper presents the DUTIR submission to TREC 2009 Chemical IR Track. This track included two tasks: Prior Art (PA) and Technical Survey (TS) tasks. We present a series of experiments on two text retrieval models, BM25 and Language Model for IR (LMIR). For Prior Art task, we focused on formulating the queries from the query patents and date filtering. Moreover, some traditional search techniques are used for Technical Survey task.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2009
Accession Number
ADA517860

Entities

People

  • Hongfei Lin
  • Song Jin
  • Zheng Ye

Organizations

  • Dalian University of Technology

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Education
  • Equations
  • Estimators
  • Frequency
  • Information Operations
  • Information Retrieval
  • Information Science
  • Language
  • Patent Office
  • Scientific Research
  • Standards
  • Statistics
  • Surveys
  • Vascular Diseases
  • Weighting Functions

Fields of Study

  • Computer science

Readers

  • Information Retrieval
  • Library and Information Science