# Preliminary Evaluation of Symbolic Regression Methods for Energy Consumption Modelling

### R. Rueda, M. P. Cuéllar, M. Delgado, M. C. Pegalajar

#### Abstract

In the last few years, energy efficiency has become a research field of high interest for governments and industry. In order to understand consumption data and provide useful information for high-level decision making processes in energy efficiency, there is the problem of information modelling and knowledge discovery coming from a set of energy consumption sensors. This paper focuses in this problem, and explores the use of symbolic regression techniques able to find out patterns in data that can be used to extract an analytical formula that explains the behaviour of energy consumption in a set of public buildings. More specifically, we test the feasibility of different representations such as trees and straight line programs for the implementation of genetic programming algorithms, to find out if a building consumption data can be suitably explained from the energy consumption data from other similar buildings. Our experimental study suggests that the Straight Line Programs representation may overcome the limitations of traditional tree-based representations and provides accurate patterns of energy consumption models.

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#### Paper Citation

#### in Harvard Style

Rueda R., P. Cuéllar M., Delgado M. and C. Pegalajar M. (2017). **Preliminary Evaluation of Symbolic Regression Methods for Energy Consumption Modelling** . In *Proceedings of the 6th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,* ISBN 978-989-758-222-6, pages 39-49. DOI: 10.5220/0006108100390049

#### in Bibtex Style

@conference{icpram17,

author={R. Rueda and M. P. Cuéllar and M. Delgado and M. C. Pegalajar},

title={Preliminary Evaluation of Symbolic Regression Methods for Energy Consumption Modelling},

booktitle={Proceedings of the 6th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,},

year={2017},

pages={39-49},

publisher={SciTePress},

organization={INSTICC},

doi={10.5220/0006108100390049},

isbn={978-989-758-222-6},

}

#### in EndNote Style

TY - CONF

JO - Proceedings of the 6th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,

TI - Preliminary Evaluation of Symbolic Regression Methods for Energy Consumption Modelling

SN - 978-989-758-222-6

AU - Rueda R.

AU - P. Cuéllar M.

AU - Delgado M.

AU - C. Pegalajar M.

PY - 2017

SP - 39

EP - 49

DO - 10.5220/0006108100390049