Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Improving Weighting Schemes: Experiences Using Pivoted Document Length Normalization

Published

Author(s)

Darrin L. Dimmick, M P. Smith

Abstract

Today's state of the art information retrieval document ranking functions contain several tuning parameters. The proper settings for these parameters for a given collection may not be known and may be difficult to derive. This paper reports on efforts to derive a document ranking function with a single tuning parameter that can be set once and will work across many different collections. The performance target for this function is to meet or exceed the performance level of the top weighting functions as evaluated in the TREC conference. To achieve this goal experiments were carried out on several simple weighting functions using pivoted document length normalization to improve their performance. The results show that good performance can be achieved by using a simple pivoted normalization function that works well across the collections used in this study.
Citation
Journal of Information Processing and Management

Keywords

document, length, normalization, pivoted, scheme, weighting

Citation

Dimmick, D. and Smith, M. (2008), Improving Weighting Schemes: Experiences Using Pivoted Document Length Normalization, Journal of Information Processing and Management (Accessed June 25, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created October 16, 2008