the rapid growth of supercomputer technologies became a driver for the development of natural sciences. Most of the discoveries in astronomy, in physics of elementary particles, in the design of new materials in the D...
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ISBN:
(纸本)9783319499567;9783319499550
the rapid growth of supercomputer technologies became a driver for the development of natural sciences. Most of the discoveries in astronomy, in physics of elementary particles, in the design of new materials in the DNA research are connected with numerical simulation and with supercomputers. Supercomputer simulation became an important tool for the processing of the great volume of the observation and experimental data accumulated by the mankind. Modern scientific challenges put the actuality of the works in computer systems and in the scientific software design to the highest level. the architecture of the future exascale systems is still being discussed. Nevertheless, it is necessary to develop the algorithms and software for such systems right now. It is necessary to develop software that is capable of using tens and hundreds of thousands of processors and of transmitting and storing of large volumes of data. In the present work the technology for the development of such algorithms and software is proposed. As an example of the use of the technology, the process of the software development is considered for some problems of astrophysics.
作者:
Xu, ZhengCao, BuyangTongji Univ
Sch Software Engn Shanghai 201804 Peoples R China Tongji Univ
China Intelligent Urbanizat Cocreat Ctr High Dens Shanghai 200092 Peoples R China
Clustering analysis plays an important role in a wide range of fields including data mining, pattern recognition, machine learning and many other areas. In this paper, we present a parallel tabu search algorithm for c...
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ISBN:
(纸本)9783319271613;9783319271606
Clustering analysis plays an important role in a wide range of fields including data mining, pattern recognition, machine learning and many other areas. In this paper, we present a parallel tabu search algorithm for clustering problems. A permanent tabu list is proposed to partition the solution space for parallelization. Moreover, this permanent tabu list can also reduce the neighborhood space and constrain the election of candidates. the proposed approach is evaluated by clustering some specific dataset. And experimental results and speedups obtained show the efficiency of the parallel algorithm.
Regular expression matching is widely used in content-aware applications, such as NIDS and protocol identification. However, wire-speed processing for large scale patterns still remains a great challenge in practice. ...
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ISBN:
(纸本)9783319271613;9783319271606
Regular expression matching is widely used in content-aware applications, such as NIDS and protocol identification. However, wire-speed processing for large scale patterns still remains a great challenge in practice. Considering low hit rates in NIDS, a compact and efficient pre-filter is firstly proposed to filter most normal traffics and leave few suspicious traffics for further pattern matching. Experiment results show that, the pre-filter achieves a big improvement in both space and time consumption with its compact and efficient structure.
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