Accession Number:

ADA517703

Title:

Heuristic Ranking and Diversification of Web Documents

Descriptive Note:

Conference paper

Corporate Author:

AMSTERDAM UNIV (NETHERLANDS)

Report Date:

2009-11-01

Pagination or Media Count:

6.0

Abstract:

We describe the participation of the University of Amsterdams Intelligent Systems Lab in the web track at TREC 2009. We participated in the ad hoc and diversity task. We find that spam is an important issue in the ad hoc task and that Wikipedia-based heuristic optimization approaches help to boost the retrieval performance, which is assumed to potentially reduce spam in the top ranked results. As for the diversity task, we explored different methods. Clustering and a topic model-based approach have a similar performance and both are relatively better than a query log based approach.

Subject Categories:

  • Information Science

Distribution Statement:

APPROVED FOR PUBLIC RELEASE