MetaStream: A meta-learning based method for periodic algorithm selection in time-changing data

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Andre Luis D Debiaso Rossi (Author) Other; Andre Carlos Ponce D F de Leon Ferreira de Carvalho (Author) Other; Carlos Soares (Author) FEUP; Bruno Feres de Souza (Author) Other

Journal

Title: Neurocomputing

Vol. 127

Pages: 52-64

ISSN: 0925-2312

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 57 Citations

Scopus - 71 Citations

Scientific classification

FOS: Natural sciences > Computer and information sciences

Other information

Authenticus ID: P-008-HNJ

DOI: 10.1016/j.neucom.2013.05.048

Abstract (EN): Dynamic real-world applications that generate data continuously have introduced new challenges for the machine learning community, since the concepts to be learned are likely to change over time. In such scenarios, an appropriate model at a time point may rapidly become obsolete, requiring updating or replacement. As there are several learning algorithms available, choosing one whose bias suits the current data best is not a trivial task. In this paper, we present a meta-learning based method for periodic algorithm selection in time-changing environments, named MetaStream. It works by mapping the characteristics extracted from the past and incoming data to the performance of regression models in order to choose between single learning algorithms or their combination. Experimental results for two real regression problems showed that MetaStream is able to improve the general performance of the learning system compared to a baseline method and an ensemble-based approach.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13