An Empirical Study of Ladder Network and Multitask Learning on Energy Disaggregation in Taiwan

Energy disaggregation is a technique of estimation electricity consumption of individual appliance from an aggre-gated meter. In this paper, we study ladder network [6] and multitask learning on energy disaggregation using auto-encoder architecture. This auto-encoder architecture was proposed fromKelly and Knottenbelt in their recent research work [1]. We used this auto-encoder architecture to the high-ownership appliances, air conditioner, bottle warmer, fridge, television and washing machine, in Taiwan and evaluated the effectiveness of the ladder network and multitask learning via these five appliances. The experimental data set has collected by Institute For InformationIndustry. We expect that this project can promote the industrial development of big data-driven smart energy management inTaiwan.