scholarly journals Deep Neural Network Approach for Prediction of Heating Energy Consumption in Old Houses

Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 122
Author(s):  
Sungjin Lee ◽  
Soo Cho ◽  
Seo-Hoon Kim ◽  
Jonghun Kim ◽  
Suyong Chae ◽  
...  
Keyword(s):  
Neural Network ◽  
Energy Consumption ◽  
Low Income ◽  
Prediction Accuracy ◽  
Deep Neural Network ◽  
Network Models ◽  
Neural Network Models ◽  
Neural Network Approach ◽  
Input Variables ◽  
Heating Energy Consumption

Neural network models are data-driven and are effective for predicting and interpreting nonlinear or unexplainable physical phenomena. This study collected building information and heating energy consumption data from 16,158 old houses, selected key input variables that affect the heating energy consumption based on the collected datasets, and developed a deep neural network (DNN) model that showed the highest accuracy for the prediction of heating energy consumption in an old house. As a result, 11 key input variables were selected, and an optimal DNN model was developed. This optimal DNN model showed the highest prediction accuracy (R2 = 0.961) when the number of hidden layers was five and the number of neurons was 22. When the optimal DNN model was applied for the standard model of low-income detached houses, the prediction accuracy (Cv(RMSE)) of the optimal DNN model, compared to the EnergyPlus calculation result, was 8.74%, which satisfied the ASHRAE standard sufficiently.

scholarly journals Multistage ensemble of feedforward neural networks for prediction of heating energy consumption

2016 ◽  
Vol 20 (4) ◽  
pp. 1321-1331 ◽  
Author(s):  
Radisa Jovanovic ◽  
Aleksandra Sretenovic ◽  
Branislav Zivkovic
Keyword(s):  
Neural Network ◽  
Neural Networks ◽  
Energy Consumption ◽  
Network Models ◽  
Feedforward Neural Networks ◽  
Neural Network Ensemble ◽  
University Campus ◽  
Neural Network Models ◽  
Feed Forward Neural Networks ◽  
Heating Energy Consumption

Feedforward neural network models are created for prediction of heating energy consumption of a university campus. Actual measured data are used for training and testing the models. Multistage neural network ensemble is proposed for the possible improvement of prediction accuracy. Previously trained feed-forward neural networks are first separated into clusters, using k-means algorithm, and then the best network of each cluster is chosen as a member of the ensemble. Three different averaging methods (simple, weighted and median) for obtaining ensemble output are applied. Besides this conventional approach, single radial basis neural network in the second level is used to aggregate the selected ensemble members. It is shown that heating energy consumption can be predicted with better accuracy by using ensemble of neural networks than using the best trained single neural network, while the best results are achieved with multistage ensemble.

Application of Deep Neural Network Models in Drug Discovery Programs

ChemMedChem ◽  
2021 ◽  
Author(s):  
Christoph Grebner ◽  
Hans Matter ◽  
Daniel Kofink ◽  
Jan Wenzel ◽  
Friedemann Schmidt ◽  
...  
Keyword(s):  
Neural Network ◽  
Drug Discovery ◽  
Deep Neural Network ◽  
Network Models ◽  
Neural Network Models

Application of Deep Neural Network Models for Blood Pressure Classification based on Photoplethysmograpic Recordings

2021 ◽  
Author(s):  
Jesus Cano ◽  
Lorenzo Facila ◽  
Philip Langley ◽  
Roberto Zangroniz ◽  
Raul Alcaraz ◽  
...  
Keyword(s):  
Neural Network ◽  
Blood Pressure ◽  
Deep Neural Network ◽  
Network Models ◽  
Neural Network Models

Neural Network-Based Stock Market Return Forecasting Using Data Mining for Variable Reduction

2008 ◽  
pp. 2476-2493 ◽  
Author(s):  
David Encke
Keyword(s):  
Neural Network ◽  
Information Gain ◽  
Network Models ◽  
Linear Regression Models ◽  
Market Returns ◽  
Neural Network Models ◽  
The Neural Network ◽  
Variable Reduction ◽  
Input Variables ◽  
Using Data

Researchers have known for some time that nonlinearity exists in the financial markets and that neural networks can be used to forecast market returns. Unfortunately, many of these studies fail to consider alternative forecasting techniques, or the relevance of the input variables. The following research utilizes an information-gain technique from machine learning to evaluate the predictive relationships of numerous financial and economic input variables. Neural network models for level estimation and classification are then examined for their ability to provide an effective forecast of future values. A cross-validation technique is also employed to improve the generalization ability of the models. The results show that the classification models generate higher accuracy in forecasting ability than the buy-and-hold strategy, as well as those guided by the level-estimation-based forecasts of the neural network and benchmark linear regression models.

scholarly journals Knowledge-driven deep neural network models for brain tumour segmentation

2020 ◽  
Vol 1662 ◽  
pp. 012010
Author(s):  
F Colecchia ◽  
J K Ruffle ◽  
G C Pombo ◽  
R Gray ◽  
H Hyare ◽  
...  
Keyword(s):  
Neural Network ◽  
Brain Tumour ◽  
Deep Neural Network ◽  
Network Models ◽  
Neural Network Models ◽  
Tumour Segmentation ◽  
Brain Tumour Segmentation
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