Browsing by Author "Pan, N. F."

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Agents for Supporting Utility Tradeoff of Negotiation between Construction Contractor and Suppliers
(2009)
Dzeng, R. J.
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Pan, N. F.
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Wang, P. R.
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土木工程學系
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Department of Civil Engineering
This research describes a decision-support model that helps business bargainers explore negotiable options for the procurement in the construction industry. The proposed model is consisted of three software agents. One agent supports the contractors' decision by allowing them to input their negotiation preferences, and another supports the suppliers. Either of agents is not aware of the preferences of the other. The third agent plays the role of middle man who receives the proposals from both sides and search for optimal negotiation result in terms of total utility. Compared to the actual agreement specified in the two surveyed project contracts, the negotiation results suggested by the model increased the total utility by as high as 10% based on the preferences of human bargainers.
Performance Evaluation of Constructed Facilities through Linguistic Judgment
(2009)
Pan, N. F.
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Dzeng, R. J.
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Yang, M. D.
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土木工程學系
;
Department of Civil Engineering
It is often difficult to estimate exact probabilities of occurrence of fault events for the use in the conventional fault tree analysis (FTA) when failure data are insufficient or fault events are vague such as human error. A hybrid approach utilizing fuzzy sets and possibility theory is presented to overcome this problem. In the approach, failure possibilities of imprecise events are characterized by fuzzy sets to translate expert subjective judgments while fuzzy fault rates are derived from fuzzy possibility scores based on a modified possibility transformation function. An example of beam failure is presented to demonstrate the capability of the approach that can assist safety engineers to effectively assess fault possibilities and better analyze building performance.