Deterministic and probabilistic occupancy detection with a novel heuristic optimization and Back-Propagation (BP) based algorithm

• Published in: Journal of intelligent & fuzzy systems Vol. 42; no. 2; pp. 779 - 791
• Main Authors: Fatema, Nuzhat, Farkoush, Saeid Gholami, Hasan, Mashhood, Malik, H
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.01.2022; Sage Publications Ltd
• Subjects: Algorithms; Artificial neural networks; Back propagation; Back propagation networks; Bias; Convergence; Heuristic; Minima; Neural networks; Occupancy; Optimization; Search algorithms; Training; Trapping; Weight; Gravitational search algorithm; optimization; occupancy; smart building; back-propagation algorithm; machine learning; neural network
• ISSN: 1064-1246; 1875-8967
• DOI: 10.3233/JIFS-189748

In this paper, a novel hybrid approach for deterministic and probabilistic occupancy detection is proposed with a novel heuristic optimization and Back-Propagation (BP) based algorithms. Generally, PB based neural network (BPNN) suffers with the optimal value of weight, bias, trapping problem in local minima and sluggish convergence rate. In this paper, the GSA (Gravitational Search Algorithm) is implemented as a new training technique for BPNN is order to enhance the performance of the BPNN algorithm by decreasing the problem of trapping in local minima, enhance the convergence rate and optimize the weight and bias value to reduce the overall error. The experimental results of BPNN with and without GSA are demonstrated and presented for fair comparison and adoptability. The demonstrated results show that BPNNGSA has outperformance for training and testing phase in form of enhancement of processing speed, convergence rate and avoiding the trapping problem of standard BPNN. The whole study is analyzed and demonstrated by using R language open access platform. The proposed approach is validated with different hidden-layer neurons for both experimental studies based on BPNN and BPNNGSA.