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Traditional software metrics have the limitations for large-scale software system, so we construct the static structure model for large-scale software by structural mapping and visualization, propose a integrated metrics set based on complex networks parameters according to the perspective of software engineering. The feasibility and validity of the metrics were testified through statistical analyzing...
Based on the results of statistical analysis software SPSS, in this paper, we make a correlation analysis among disturbance of the ionosphere, ground electric variation and thunderstorm activity. We also study the influence from ionosphere and ground electric field on thunderstorm activity of the same day, in one day, two days, three days, five days, seven days and nine days. And From the outcome,...
Lightning location information is the message on lightning received from lightning monitoring net. It contains lightning time, latitude, longitude, intensity, as well as steepness, positioning errors and other critical information. There're some differences in the information caused by the diversity of lightning positioning system models. This paper introduces a kind of methods on extracting the lightning...
The index system was constituted in this paper using meteorological data, vegetation data, soil data and socio-economic statistics, and then eco-environment vulnerability was evaluated. Based on the powerful spatial analysis function of GIS, using 100m×100m real area as basic unit, the eco-environment vulnerability of Baishan Region was evaluated with the Analytical Hierarchy Process and Weighted...
Self-similar burst traffic will reduce the link utilization and produce a longer latency, which affects real-time performance of the campus network. A simulation method of statistical multiplexing technology is proposed in this paper by using characteristics of packet/frame switch. We also allocate bandwidth and buffer reasonable. Thus the self-similarity traffic which impacts on the network can be...
A new method for TV commercial detection based on multi-feature fusion is proposed. Firstly, the video and audio features of TV commercials are analyzed and extracted. Then, TV commercial detection is performed by using these video and audio features as well as a statistical analysis method. Finally, experiments are implemented and results are analyzed. Experimental results show that TV commercials...
Taking the crop lands around Xinjing village in the upstream reaches of the Bi River as study area, this paper measured the contents of four heavy metals (Pb, Zn, Cd and As), evaluated the pollution degree using the pollution index and interpolated their spatial distribution by Kriging method in ArcGIS. The results indicated: (1) only the content of Cd exceeded background levels of soils, which was...
The aim of this paper is to implement the hand gesture detection by examine the monocular video images under complex background. Skin color detection and background subtraction algorithm are adopted to achieve the detection of hand gesture area from video image. The implement of arm removal and noise reduction algorithm is proved beneficial to reduce the redundancy from binary image of hand gesture.
In this report, an experiment on noise detection in Motorola Lab was shown. And then it was estimated the noise power ratio under various noise types based on MSOS algorithm and VAD algorithm respectively. The result showed that the MSOS algorithm is found to be a better approach in terms of estimating the noise power ratio between two microphone channels than the VAD algorithm.
Suppose the stock returns series has a fat tail distribution characteristics of GED, and select the stock return series of three types of listed companies from 2007 to 2009 as the sample data, empirical analysis credit situation and probability of default of the listed companies in China before and after the financial crisis. Research indicates that the model can be well with the actual economic situation...
With the increasingly universal use of remote sensing data, related development is required to extract and enhance image information. In this paper, a SPOT image including multispectral and panchromatic bands and a Landsat5/TM image have been used to study fusion performance based on the integration of intensity, hue and saturation (IHS) and five transform methods: linear stretching, histogram matching,...
The spatial distribution of disease epidemiology has always been the hotspot and difficulty, information technology and GIS technology have been widely applied in epidemiological studies, along with the continuous deepening of the disease spatial analysis development. In this paper taking H1N1 flu as the research object, given that China and Shandong Province, the number of infections and deaths'...
Gait is thought to be the most effective feature for human recognition in the distance. For optimal performance, the feature should include as many different types of information as possible, so in this paper, we present an integrated feature, which integrates motion feature and shape feature based on the Bayesian theory. For motion feature, we use shape variation-based frieze pattern (SVB frieze...
This paper proposed a new feature extraction method for lip-reading, named DCT+LSDA. Discrete Cosine Transform (DCT) is a popular method used to reduce the dimension of the data and it has been very efficient in lipreading. Linear Discriminant Analysis (LDA) is a method to study the class relationship between data points, it is very useful method for dimensionality reduction and feature extraction...
By studying mental arithmetic for healthy adults by statistical analysis and investigating the load of local areas, the study is better to learn how the brain works. Subjects are 22 right-handed healthy university males. Subjects were asked to do mental arithmetic twice independently. Numbers were selected during 1 to 10 randomly. Every two numbers were given respectively; the time interval of them...
In the paper, the temperature ,sunlight hours and rainfall for the last 25 years in Nanchang are collected and calculated using Matlab and the EVIEWS software analysis. In the period, the annually mean temperature of Nanchang were arising at a rate of 0.0557°C/1-year. And quarterly temperatures, sunlight hours and rainfall data for the last 25 years in Nanchang were consolidated statistical analysis...
In this paper, the space variability of soil total phosphorus and available phosphorus at the depths of 0-12 cm ,12-20cm ,20-30cm in the Taihu Lake region of rice soil was examined by using traditional statistics with geostatistics methods. The results showed that: total phosphorus content was reduce while the depths increased, and available phosphorus content was first increased and then decreased...
Using 30 m resolution DEM to extract the elevation, slope, aspect, amplitude and water information of Nu People and Lisu Peopl's residential area on the ARCGIS software platform . The settlements, and water information were provided by National Geographic 1:250000 basic geographic information and data. All of this information was used for spatial overlay analysis to obtain the quantitative relationship...
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