In Data Grid, large quantity of data files are generated and many users around the world need to access such data for their research and experiments. Replication is a key optimization technique to manage such a huge amount of data by replicating data in multiple grid sites. Replication goals are how to decrease bandwidth consumption, improve fault tolerance, and enhance scalability. Due to dyna...

In this paper we describe VIG, a data scaler for benchmarks in the context of ontology-based data access (OBDA). Data scaling is a relatively recent approach, proposed in the database community, that allows for quickly scaling up an input data instance to s times its size, while preserving certain applicationspecific characteristics. The advantage of the approach is that the user is not require...

One major challenge in data grids is how to provide good and timely access to huge amount of data in distributed locations, given the high latency of interconnection networks. Dynamic replication strategies are regarded as one of the major optimization technique for reducing access latency. In addition to reducing data access time, replication also aims to use network and storage resource effic...

Today research and industry communities are aiming at establishing mobile and ubiquitous computing (MUC) in order to address the emerging needs of the information society. MUC provides the foundation of a “human-oriented communication environment,” where people can get online anytime, anywhere, thus having permanent access to their preferred services. With an immense potential to revolutionize ...

Volumetric and page oriented optical storage systenwhave a great potential for high data density and high speed through page oriented data access [l]. However, in order to be practical, they have to maintain data integrity using error correction and modulation codes. The coding comes at a cost of spatial overhead of codeword size over the source data size, and processing time overhead for encod...

Data deduplication is a technology that eliminates redundant data to save storage space. Most previous studies on data deduplication target backup storage, where the deduplication ratio and throughput are important. However, data deduplication on primary storage has recently been receiving attention; in this case, I/O latency should be considered equally with the deduplication ratio. Unfortunat...

Volumetric and page oriented optical storage systems have a great potential for high data density and high speed through page oriented data access [1]. However, in order to be practical, they have to maintain data integrity using error correction and modulation codes. The coding comes at a cost of spatial overhead of codeword size over the source data size, and processing time overhead for enco...

Even though real-time data access to remote sensor data is desirable for many WSN applications, collecting remote data reliably from a WSN is a challenging task since many components of the WSN are subject to harsh elements of nature. A deployed system’s performance and lifetime can be impaired if this harsh environment of the deployment site is not considered. The deployments of LUSTER, a WSN ...

This paper designs an intra-body network (IBN) of nodes, consisting of small sensors and processing elements (SPEs) placed at different locations within the body and a Personal Digital Assistant placed externally but in close proximity to the body. The sensors measure specific physiological attributes such as electrophysiological and biochemical changes in the myocardium (action potentials of c...

Over the past decade, big data analysis has seen an exponential growth and will certainly continue to witness spectacular developments due to the emergence of new interactive multimedia applications and highly integrated systems driven by the rapid growth in information services and microelectronic devices. So far, most of the current mobile systems are mainly targeted to voice communications w...