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Towards meta-learning for multi-target regression problems

Gabriel Jonas Aguiar
•
Everton Santana
•
Saulo Martiello Mastelini
altro
Sylvio Barbon Junior
2019
  • conference object

Abstract
Several multi-target regression methods were developed in the last years aiming at improving predictive performance by exploring inter-target correlation within the problem. However, none of these methods outperforms the others for all problems. This motivates the development of automatic approaches to recommend the most suitable multi-target regression method. In this paper, we propose a meta-learning system to recommend the best predictive method for a given multi-target regression problem. We performed experiments with a meta-dataset generated by a total of 648 synthetic datasets. These datasets were created to explore distinct inter-targets characteristics toward recommending the most promising method. In experiments, we evaluated four different algorithms with different biases as meta-learners. Our meta-dataset is composed of 58 meta-features, based on: statistical information, correlation characteristics, linear landmarking, from the distribution and smoothness of the data, and has four different meta-labels. Results showed that induced meta-models were able to recommend the best method for different base level datasets with a balanced accuracy superior to 70% using a Random Forest meta-model, which statistically outperformed the meta-learning baselines.
DOI
10.1109/BRACIS.2019.00073
Archivio
https://hdl.handle.net/11368/3037255
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85077036116
https://ieeexplore.ieee.org/document/8923718
Diritti
open access
license:copyright editore
license:digital rights management non definito
license uri:iris.pri02
license uri:iris.pri00
FVG url
https://arts.units.it/request-item?handle=11368/3037255
Soggetti
  • Meta-learning

  • Multi-target

  • Regression

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