Spark has emerged as an easy to use, scalable, robust and fast system for analytics with a rapidly growing and vibrant community of users and contributors. It is multipurpose—with extensive and modular infrastructure for machine learning, graph processing, SQL, streaming, statistical processing, and more. Its rapid adoption therefore calls for a performance assessment suite that supports agile ...

We experimentally demonstrate multi-beam high spatial resolution laser micromachining with femtosecond pulses. The effects of chromatic aberrations as well as pulse stretching on the material processed due to diffraction were significantly mitigated by using a suited dispersion compensated module (DCM). This permits to increase the area of processing in a factor 3 in comparison with a conventio...

The Computational Linguistics and Information Processing lab at the University of Maryland participated in two TREC tracks this year. The LiveQA and the Real-Time Summarization tasks both involve information processing in real time. We submitted eight runs in the total. In both tasks, our best system had the highest precision among all automatic participating systems. This paper describes the a...

totoday’s market place is increasingly dynamic and volatile. in this area supply network issues recently have attracted a lot of attention from industrial practitioners and academics worldwide. chaos theory is the study of complex, nonlinear, dynamic systems. for chaotic systems, a tiny change in conditions may result in an enormous change in system output, whereas substantial changes in condit...

ab initio calculations were employed to investigate nitrogen inversion as a configuration change that can supply an infinitely useful switchable control mechanism for some complex systems. in this paper, design of a new artificial molecular nanohinge is discussed based on nitrogen inversion in which reciprocating motion of substituent in effect of inversion phenomenon, led to an open–close moti...

The multipass-rendering method integrating radiosity with ray-tracing gives one of the best solutions for synthesizing photo-realistic images. However, the method is also computationally expensive. Therefore, parallel processing is the most promising approach to the fast multipass-rendering method. This paper presents a hierarchical parallel processing system for the multipass-rendering method....

creating and preserving large patches in land use configuration and satisfying compactness and contiguity in land use configuration are nature-prescribed and nature-inspired criteria that can be used in land use planning better that before. accompanying compactness and contiguity as the important landscape metrics in land use planning and land use configuration is close to applying proactive ap...

H/W independenl / Abstract: I n this paper, we describe a software environment for general purpose MIMD machines based on packet switched message passing paradigms. The environment provides system calls for communication between various processing elements in the machine and system calls to get the configuration of the system. It assumes the presence of a Host processor through which facilities...