2015
The existing practices of the urban section of freight transport chain result in traffic congestion, air pollution and resources being wasted. We focus on the final stage of freight distribution and…
Earth-Science data are composite, multidimensional and of significant size, and as such, continue to pose a number of on-going problems regarding their management. With new and diverse information…
Many modern applications require the evaluation of analytical queries on large amounts of data. Such queries entail joins and heavy aggregations that often include user-defined functions (UDFs). The…
2011
Modern frameworks, such as Hadoop, combined with abundance of computing resources from the cloud, offer a significant opportunity to address long standing challenges in distributed processing.…
Infrastructure-as-a-Service (IaaS) cloud providers often combine different hardware components in an attempt to form a single infrastructure. This single infrastructure hides any underlying…
Contemporary multimedia, scientific and medical applications use indexing structures to access their high-dimensional data. Yet, in sufficiently high-dimensional spaces, conventional tree-based access…
2010
Virtualization of computer systems has made feasible the provision of entire distributed infrastructures in the form of services. Such services do not expose the internal operational and physical…
2009
Software development kits (SDKs) and supporting tools for Graphics Processor Units (GPUs) have matured and they now enable the implementation of complex middleware that takes advantage of the…
Existing GRID infrastructures rely on explicit user instructions in order to replicate files for the purposes of resiliency. This human-intensive process is inefficient, error prone and, more…
Anticipatory scheduling (AS) of I/O requests has become a viable choice for block-device schedulers in open-source OS-kernels as prior work has established its superiority over traditional disk-…
