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Modeling and parameter ranking of construction labor productivity

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Modeling and parameter ranking of construction labor productivity

Khan, Zafar Ullah (2005) Modeling and parameter ranking of construction labor productivity. Masters thesis, Concordia University.

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Abstract

For having, both a qualitative as well as a quantitative analysis of various aspects of the topic, a field investigation spanning over eighteen months, for collecting actual data from on-going construction sites was carried out. The set of nine input parameters which is selected for this study is considered to be the one which causes short term or daily variations in productivity. The entire analysis and experimentation can be divided into three main parts, those of modeling the phenomenon, ranking the independent variables in the order of their relative significance and determining and graphically depicting the exclusive influences of each variable on the output which is daily productivity of formwork installation operations. Various neural network models under different paradigms and network settings were developed and compared for performances under the criteria of R 2, MSE and MAE. The best performing model of Back Propagation with modified learning rate and momentum was validated with data unexposed to the model

Divisions:Concordia University > Faculty of Engineering and Computer Science > Building, Civil and Environmental Engineering
Item Type:Thesis (Masters)
Authors:Khan, Zafar Ullah
Pagination:xv, 190 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:M.A. Sc.
Program:Building, Civil and Environmental Engineering
Date:2005
Thesis Supervisor(s):Moselhi, Osama
ID Code:8615
Deposited By:Concordia University Libraries
Deposited On:18 Aug 2011 14:30
Last Modified:18 Aug 2011 14:30
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