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Chuen-Chyi Hsieh, Te-Che Chen, Ting-Wu Ho and Chien-Cheng Chou

Taiwan High-Speed Trains Emergency Dispatching Using Ontology-Based, Multi-Agent Model

Abstract: High-speed rail (HSR) systems have played a more and more important role for todayÕs traveling public. To guarantee punctual, reliable and safe services, modern HSR systems are equipped with sophisticated computerized subsystems for daily operations. However, when a natural or man-made disaster occurs, currently extensive human interventions are needed and, consequently, extended delays and possible injuries may occur if HSR emergency dispatching plans utilized do not accommodate all the conflicts raised. Previous literature shows that multi-agent system (MAS) technology can be utilized to provide decision-making assistance in a distributed and dynamic environment and is often combined with ontology and semantic rules to enhance the reasoning capability. Hence, this research aimed at developing an ontology-driven MAS model for HSR emergency dispatching, and intelligent agents were constructed using JADE (Java Agent DEvelopment framework) and Protˇgˇ with SWRL (Semantic Web Rule Language). The proposed model was validated with three real HSR emergency dispatching cases, plus 50 hypothetical cases. Experts from Taiwan HSR company were asked to assess the model performance. The assessment results showed that the HSR emergency dispatching plans generated were similar to those designed by experienced dispatchers, and the time required to develop a plan using the proposed model was significantly less than the time needed in the manual approach. The model is expected to help young dispatchers handle emergency dispatching cases under stress, as well as to strengthen the safety aspect of HSR services. Delays or casualties associated with a train disaster could be reduced if the proposed model is adequately utilized.

Keywords: Multi-Agent System, Ontology, High-Speed Rail, Disaster Response Phase, Emergency Dispatching

DOI: https://doi.org/10.24928/JC3-2017/0256

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Mohsin K. Siddiqui, William J. O’Brien, Ting-Kwei Wang

A Mapping Based Approach To Schedule Integration In Heterogeneous Environments

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Series: w78:2006 (browse)
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Ting S K, Wong H Y

Legal challenges & strategies in e-procurement in construction

Abstract: E-commerce is not wholly a technology phenomenon, though technology is utilized to facilitate the business processes. It changes the conventional workflow and practices. E-procurement in the Singapore construction industry is still in its infancy stage. Though Singapore construction companies should be encouraged to utilize informative technology (IT) systems, the potential legal challenges that surfaced while integrating these systems with the existing legal systems must be highlighted and understood to protect their corporate interests and assets. The perception of some Singapore construction players and application service providers (ASPs) on these issues related to lack of alignment in jurisdictions, legal liability, insecurity, confidentiality and service dependency risks were supported by the results compiled from the survey questionnaire conducted. The strategies namely legislation, self-regulation, technology and information security management to minimize the related risks and damages were recommended from a multidisciplinary approach. The mechanisms favored by the surveyors namely enactment of new law, interchange agreement, Public Key Infrastructure (PKI) and education were further discussed. By combining the strategies, the construction industry can better avoid these legal pitfalls while transforming with the advancement of technology and enjoying the benefits of adopting e-commerce.

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Full text: content.pdf (131,045 bytes) (available to registered users only)

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Permission to reproduce these papers has been graciously provided by the University of Auckland. The assistance of the editor who provided the full texts and the structured metadata, Dr. Robert Amor, is gratefully appreciated.


William J. O’Brien, Ting-Kwei Wang, Mohsin Siddiqui, Joachim Hammer, and Ronald Wakefield

Process Connectors - Linking Distributed Processes In The Construction Supply Chain

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