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Cache prefetching is a highly effective technique for improving I/O performance of disk array. A semantic-aware cache prefetching mechanism is designed to improve cache hit rate of disk array. The mechanism can identify some important properties of each block on the disk, and utilize that information to determine whether the block is live or dead. The allocation status (live or dead) of block is a...
In this context, we report the availability of a convenient server for the bacterial community prediction of metagenome which can be accessed from http://bioinfo.ustc.edu. cn/softwares/bcp-mg/. This tool predicts the bacterial community according to the enzyme information extracted from the annotation of metagenomic sample or the metabolic network reconstructed from this data. Optional constraints...
In HPC domain, a majority of applications build on MPI and employ collective operations in their communication kernels. Improving the performance of collectives has been long term focused by a lot of work. Recently, in the optimization work of collectives on multi-core clusters, hierarchical algorithm designs are remark-able. This kind of algorithms can greatly reduce the inter-node traffic but increase...
This paper introduced fuzzy assessment of water quality based on membership grade by artificial neural network. Samples were obtained by intensive interpolation of water quality standards, relative MG matrix was output as expectation value for network's train and application. Then, improved fuzzy mathematics method was applied to assess the water quality of Qingdao Dagu River.
For motion system, the friction and servo lag are the factors of causing tracking error. Traditionally the friction is regarded as external disturbance and compensated by closed-loop control system. It often leads to quadrant glitches. In this paper, zero phase error tracking control (ZPETC) with friction compensation is presented where the friction model-LuGre model is established to estimate friction...
Patent data is one of the most valuable reservoir of technical and commercial knowledge. However, patent data of different countries and organizations has been stored separately, which added to the difficulty for patent analysis with these free patent data. By using Web mining method, we can retrieve the related patent information of a certain field from several patent Website as data source. From...
This research investigated the distribution of eutrophication degree in Nansi Lake using remote sensing data. Nine sampling points were monitored with Chla, TP and TN three parameters in upper lake of Nansi Lake. TSI of each sampling points was calculated using Carlsonpsilas TSIM. Then the linear model between remote sensing data and TSIM of each field monitoring points in upper lake of Nansi Lake...
The paper, based on the fuzzy question of the multi-objective ore blending, firstly, gives the solving analysis of its characteristics and complication. Then, the two-step fuzzy optimization algorithm is designed based on the sequence of linguistic satisfaction. The algorithm places weight on the improvement of optimality and importance model. Ultimately, a simulation study is conducted through a...
The various components sophisticated behavior can be displayed by systems composed of a large number of agents, each of which has limited intelligence and exhibits simple behaviors. How to control and coordinate this kind of agents to accomplish a prescribed task is of great interest. Aiming at exploring the self-organized behaviors of agents, this paper takes the ldquocircle-formingrdquo problem,...
This research investigated the distribution of Chlorophyll-a and suspended substance (SS) in Nansi Lake using remote sensing data. The correlation between the Landsat5 TM data and the field measurement for water quality was analyzed using Pearson distribution theory. The remote sensing inversion model of Chlorophyll-a and SS in Nansi Lake as indexes of water quality were also established.
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