The construction of highly reliable planetary-scale distributed services in the unreliable Internet environment entails significant challenges. Our research focuses on the use of loose binding among service components as a means to deploy distributed services at scale. An event-based publish/subscribe messaging infrastructure is the principal means through which we implement loose binding. A un...

Transportation infrastructure significantly contributes to a nation’s prosperity by facilitating workers’ access to employers, consumers’ access to shopping and leisure activities, and firms’ access to capital, labour and potential customers. The public sector has generally provided the vast amount of a nation’s infrastructure – roadways, waterways, railways and airways – and expanded it to sat...

There has been little systematic discussion of the issues associated with private involvement in infrastructure. Analysis of the relative performance of the private and public sector in different phases of infrastructure provision suggests that in most cases, the private sector will be most efficient in the construction phase but the public sector will be best equipped to handle the risks assoc...

In the last decade, researchers in the area of distributed systems created the concept of mobile agents: active, autonomous objects capable of executing computation in a computer network, migrating from node to node. We propose the use of this new concept and related technology for the creation and performance of music within a distributed computing environment. In this paper, we introduce Anda...

Infrastructure management offices plan and complete several thousand small construction projects annually. Effective planning is vital if the public and private sectors are to maintain valuable infrastructure investments at the least cost to the taxpayer or shareholder. This paper presents the results an application of Genetic Algorithms (GA) in multi-project resource allocation to minimize the...

Railway infrastructure managers now have to deal with the new operators' requests for capacity. Planning the new construction or reconstruction of infrastructures must be carried out very carefully due to the huge investment needed. This paper studies a Constraint Programming (CP) model of the 'Railway Infrastructure Saturation Problem" (RISP). The model applies to assess the capacity of a junc...