Speeding up algorithm selection using average ranking and active testing by introducing runtime

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Abdulrahman, SM (Author) Other; Pavel Brazdil (Author) FEP; van Rijn, JN (Author) Other; Vanschoren, J (Author) Other

Journal

Title: Machine Learning

Vol. 107

Pages: 79-108

ISSN: 0885-6125

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 17 Citations

Other information

Authenticus ID: P-00N-G4D

DOI: 10.1007/s10994-017-5687-8

Abstract (EN): Algorithm selection methods can be speeded-up substantially by incorporating multi-objective measures that give preference to algorithms that are both promising and fast to evaluate. In this paper, we introduce such a measure, A3R, and incorporate it into two algorithm selection techniques: average ranking and active testing. Average ranking combines algorithm rankings observed on prior datasets to identify the best algorithms for a new dataset. The aim of the second method is to iteratively select algorithms to be tested on the new dataset, learning from each new evaluation to intelligently select the next best candidate. We show how both methods can be upgraded to incorporate a multi-objective measure A3R that combines accuracy and runtime. It is necessary to establish the correct balance between accuracy and runtime, as otherwise time will be wasted by conducting less informative tests. The correct balance can be set by an appropriate parameter setting within function A3R that trades off accuracy and runtime. Our results demonstrate that the upgraded versions of Average Ranking and Active Testing lead to much better mean interval loss values than their accuracy-based counterparts.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 30