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Because of individual work efficiency affecting the whole airport working efficiency, it's very important that how to evaluate the individual work efficiency scientifically. In this paper, by analyzing the working characteristics and environment of civil aviation airport staff, a hierarchical fuzzy comprehensive evaluation model is introduced. For the complexity and variability of the working environment...
Leaf area index (LAI) is a critical parameter in many terrestrial ecosystem models. Continuous LAI measurements from global sites are an important dataset for the validation of remotely sensed LAI products. However, the spatial scale mismatch between the site measurement and the product pixel grid hinders the utilization of multi-temporal ground LAI measurements. In this study, a pragmatic method...
Fuzzy Time series (FTS) has been widely applied to handle non-linear problems, such as enrollment estimation, weather prediction and stock index forecasting. FTS predicted values on the basis of an equal interval, which is determined the early stages of forecasting in the model. In this paper, we employed Genetic Algorithms (GA) to optimize the interval at first. Based on this, then Rough Set (RS)...
Fuzzy time-series (FTS) has been applied to handle non-linear problems, such as enrollment, weather and stock index forecasting. In the forecasting processes, fuzzy logical relation (FLR) plays a pivotal role in forecasting accuracy. Usually FTS uses an equal interval to obtain forecasting values. But in this paper, we use genetic algorithm (GA) to optimize the interval at first. Based on this, then...
This paper introduces a new method of extracting mixed characteristic parameters using the principal component analysis (PCA), this method proposed is based on widely use of the PCA and K-means clustering in image and speech signal processing. The first work is systematic study of extracting algorithm and theory for speaker recognition system, which is on the most commonly used LPCC (Linear Prediction...
A survey of dynamic taint propagation (DTP) was provided. It summarized the advantages and disadvantages of several DTP techniques which are based on debugger, binary instrumentation and virtual machine, proposed a series of problems of DTP which are worth to further research and gave the development trends of DTP techniques.
Existing drought evaluation method which people easy to appear the interference of artificial weights, this paper puts forward projection pursuit model for evaluating drought based on logistic curve and selects the drought evaluation index as projection parameters to seek its best projection direction. Taking Qiqihar area as research objects, the departure ratio of rain-fall, dry index and Z index...
In 2009, the percent of the dependence on foreign oil in the country breaking through the cordon of 50%, reached to 52%. The security of oil plays a key role in the national security. So the oil companies should continuously improve the efficiencies and enhance the competitiveness while speeding up the pace of the overseas mergers and acquisitions. This paper will set up a model to evaluate the performance...
Based on investigation, this article identified an evaluation index system of person-organization fit for enterprise technician through analysis data, and applied the comprehensive evaluation methods, such as Analytic Hierarchy Process, comprehensive index and clustering analysis, to evaluate and analyze a particular enterprise's technicians on person-organization fit.
Based on the molecular structure topological index Bm1, Bm2, Bm3, with 14 kinds of persistent organic compounds of environmental parameters associated with LgKoc, LgKow and LgKoA using MATLAB software to multiple linear regressions was fitted regression equation. The use of multiple linear regression test of significance, results show that the equation is significant. Estimations are well coincident...
A fluctuation model of cascading overload in power networks is developed in this paper. The aim of developing this model is to provide a new angle of view for the cascading overload phenomenon and find some regularities. An example in IEEE14 system is also provided for this aim. In this example, the fluctuation indexes are calculated on the basis of analysis for cascading overload. The results of...
The core of fuzzy evaluation on campus network security is membership degree transformation. But the existing transformation methods should be questioned, because redundant data in index membership degree is also used to compute object membership degree, which is not useful for object classification. The new algorithm is: using data mining technology based on entropy to mine knowledge information...
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