Accession Number:

ADA456315

Title:

Mitre's Qanda at TREC-11

Descriptive Note:

Conference paper

Corporate Author:

MITRE CORP BEDFORD MA

Report Date:

2006-01-01

Pagination or Media Count:

11.0

Abstract:

Qanda is MITREs TREC-style question answering system. Since last years evaluation, principal improvements to the system have been aimed at making it faster and more robust. We discuss the current architecture of the system in Section 1. Some work has gone into better answer formation and ranking, which we discuss in Section 2. After this years evaluation, we have done a number of ROVER-style system combination experiments using the judged answer strings made available by NIST. We report on some success with this in Section 3. We have also performed a detailed categorization of previous TREC results according to answer type and grammatical category, as well as an analysis of Qandas own question analysis component -- see Section 4 for these analyses.

Subject Categories:

  • Information Science
  • Linguistics
  • Operations Research
  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE