Massive computing power is required for data engineering and data analysis. While Hadoop brings us near-at-hand computing clusters, we face challenging issues on resource utilization efficiency for clusters. There are many challenges to overcome with respect to the resource waste with production clusters, and it is also still an open question as to how to improve the efficiency of resource util...

A more careful count of the operations involved in solving the linear system associated with collocation of a two-point boundary value problem using rough splines reverses results recently reported by others in this journal. In addition, it is observed that the use of the technique of "condensation of parameters" can decrease the computer storage required. Furthermore, the use of a particular h...

Over the past decade, a variety of information technologies have been under development in the computer science and electrical engineering fields that have transformed all facets of our society. Adoption of these transformative information technologies for monitoring complex civil infrastructure systems can lead to safer structures that are easier to manage over their operational lives. Foremos...

In Cloud storage of multiple CPU cores, many Mapreduce applications may run in parallel on each compute node and collocate with local Disks storage. These Disks storage are shared by multiple applications that use full CPU power of the node. Each application tends to issue contiguous I/O requests in parallel to the same Disk; however if large number of Mapreduce tasks enters the I/O phase at th...

It is well known that the placement of threads and memory plays a crucial role for performance on NUMA (Non-Uniform Memory-Access) systems. The conventional wisdom is to place threads close to their memory, to collocate on the same node threads that share data, and to segregate on different nodes threads that compete for memory bandwidth or cache resources. While many studies addressed thread a...

This article aims to investigate and evaluate the translation of verb-noun collocation in English into Arabic Google and Bing online translation engines. A number of sentences were used as a testing dataset to evaluate both engines. Human translations by three bilingual speakers were used as a gold standard. A simple evaluation metric was proposed to calculate the translation accuracy of verb-n...

Autonomic influences on the heart rate have been the subject of intense research for many decades and are classically devoted to the sympathetic and parasympathetic systems. However, developments over the past few years in our knowledge of the organization of the autonomic nervous system have led to the conclusion that in addition to the classical transmitters, peptidic transmitters are clearly...

Parallel concordance software provides a general purpose tool that permits a wide range of investigations of translated texts, from the analysis of bilingual terminology and phraseology to the study of alternative translations of a single text. This paper outlines the main features of a Windows concordancer, ParaConc, focussing on alignment of parallel (translated) texts, general search procedu...

Earth-based radar observations and results from the MESSENGER mission have provided strong evidence that permanently shadowed regions near Mercury's poles host deposits of water ice. MESSENGER's complete orbital image and topographic datasets enable Mercury's surface to be observed and modeled under an extensive range of illumination conditions. The shadowed regions of Mercury's north polar reg...

This paper examines user-generated metadata as implemented and applied in two web services designed to share and organize digital media to better understand grassroots classification. Metadata data about data allows systems to collocate related information, and helps users find relevant information. The creation of metadata has generally been approached in two ways: professional creation and au...