Overall comparison at the standard levels of recall of multiple retrieval methods with the friedman test

Abstract

We propose a new application of the Friedman statistical test of significance to compare multiple retrieval methods. After measuring the average precision at the eleven standard levels of recall, our application of the Friedman test provides a global comparison of the methods. In some experiments this test provides additional and useful information to decide if methods are different. © Springer-Verlag Berlin Heidelberg 2007.