Neural networks for estimating the productivity of voncreting activities

Ezeldin, A S and Sharara, L M (2006) Neural networks for estimating the productivity of voncreting activities. Journal of Construction Engineering and Management, 132(6), pp. 650-656. ISSN 0733-9364

Abstract

To overcome the variability and the impact of subjective factors on the cost of concrete-related activities in developing countries, neural networks can offer a guiding tool. In this study, three neural networks were developed to estimate the productivity, within a developing market, for formwork assembly, steel fixing, and concrete pouring activities. Eighteen experts working in six projects were carefully selected to gather the data for the neural networks. Ninety-two data surveys were obtained and processed for use by the neural networks. Commercial software was used to perform the neural network calculations. The processed data were used to develop, train, and test the neural networks. The results of the developed framework of neural networks indicate adequate convergence and relatively strong generalization capabilities. When used to perform a sensitivity analysis on the input factors influencing the productivity of concreting activities, the framework has demonstrated a good potential in identifying trends of such factors.

Item Type: Article
Uncontrolled Keywords: computer application; concrete; developing countries; neural network; productivity; project management
Index terms: concreting, estimating, sensitivity analysis, developing country, survey, neural network, variability, project management, estimate, formwork, productivity, computer application
Subjects: financial and cost management, artificial intelligence, data collection methods, environmental hazards, statistical analysis, building construction, development economics, project management theory and practice, software systems, management
Topics: Research Practice, Project Management, Engineering Principles, Business Strategy, Cost Management, Construction Technology, Sustainability, International Construction, Digital Applications
Descriptive scope: 3 PCE

N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here