American Journal of Geophysics, Geochemistry and Geosystems
Articles Information
American Journal of Geophysics, Geochemistry and Geosystems, Vol.5, No.1, Mar. 2019, Pub. Date: May 28, 2019
Application of the BOSOM-LSTM Technique in Seismic Vulnerability Assessment
Pages: 29-39 Views: 71 Downloads: 32
Authors
[01] Kernan Mzelikahle, Computer Science Department, National University of Science and Technology, Bulawayo, Zimbabwe.
[02] Dumisani John Hlatywayo, Applied Physics Department, National University of Science and Technology, Bulawayo, Zimbabwe.
[03] John Trimble, Industrial Engineering Department, Tshwane University of Technology, Tshwane, South Africa.
Abstract
The BOSOM-LSTM technique is a hybrid neural network capable of conducting generic data analysis. There are a number of factors that generally affect data analysis, and chief among them is the extensibility of an analysis tool. Any tool and/or technique used for analysis is limited in its operation by its own ability to adapt for use in different circumstances. Extensibility of an analysis tool, therefore, implies the ability of a tool to be reconfigured with new configuration parameters in order to suite a new demand. The BOSOM-LSTM technique is a relatively flexible and reconfigurable tool applicable for generic data analysis. In this study, the BOSOM-LSTM was configured for seismic vulnerability analysis using data from Zimbabwe. The objective of the study was to apply the BOSOM-LSTM technique in the assessment of seismic vulnerability of a Zimbabwean city (Mutare City), given a simulated seismic scenario. In this paper, a seismic event was simulated using the VISCO1D software on the data obtained from the East-Southern Africa Rift System. In order to assess seismic vulnerability of public infrastructure and civilian buildings, construction data was obtained from Mutare City Council. This data revealed that construction in the city was based on reinforced concrete material, thus vulnerability of infrastructure in the city could be extrapolated from the compressive strength of reinforced concrete. Results in this paper reveal two significant observations: (1) that the BOSOM-LSTM was successfully configured and used for seismic vulnerability assessment, and (2) that there is significant seismic vulnerability in Mutare City. A conclusion was drawn that the BOSOM-LSTM is applicable in seismic vulnerability assessment. However, a limitation was noted in that the BOSOM-LSTM technique depends on manual parameter tuning techniques, and configuration.
Keywords
BOSOM-LSTM Technique, Long Short Term Memory, Bat Optimised Self Organising Map, Artificial Neural Networks, Unsupervised Learning, Seismic Vulnerability Assessment
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