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The essence of paraphrasing lies in retrieving correct paraphrases. Word-level paraphrasing is sensitive to the context, and its critical indicator is interchangeability. This paper presents a two-stage multi-feature word-level Chinese paraphrase extracting method. In stage one, using data mining technology the target word and its candidate paraphrases are extracted from large-size corpuses and the...
The improved grey correlative model was put forward in order to improve the objectivity of grey synthetic evaluation method. Balanced degree was ascertained by entropy theory. Weighted grey correlative degree was synthesized by grey correlative coefficient and entropy weights. Balanced adjacent degree, which was derived from weighted grey correlative degree and balanced degree, was taken as the evaluation...
Keystone transform for wideband LFM signal after dechirping is presented in this paper, which can correct range migration and improve the speed of signal processing. The affection of Keystone transform on echoes of ballistic targets with micro-motion and extracting micro-motion information is studied. Simulation experiments are carried out, whose results prove that the algorithm proposed above is...
This paper applied the Methods which based on GEP in compress multi-streams. The contributions of this paper include: 1) giving an introduction to data function finding based on GEP(DFF-GEP), defining the main conception of Multi-Streams, and revealing the map relation in it; 2) putting forward the Compression Algorithm for Multi-Streams according to map relation lied in data between data streams;...
This paper applies data mining technique and the DEA model to a sample of 87 ST listed companies in the securities market in China and 174 matching normal companies, with a view to identifying the relationship between the relevant variables and corporate financial risks. The research result indicates that asset-liability ratio, the rate of the current liability and the growth rate of operating income...
Taking 164 ST (Special Treatment) listed companies in China's stock market and 328 paired risk-free companies as samples, this paper, adopting Logistic Multiple Regression Model to do multi-step regression analysis, performs data mining to study the relationship between the relative financial and non-financial indicators and the corporate financial risks. The study shows that the three indicators...
This paper offers a method to model the performance of a BCF (body and/or caudal fin) biomimetic robotic fish. By using a dimensional analysis method, a semi-empirical model for predicting the thrust force generated by a BCF oscillation swimming mode is derived. This model shows good prediction capability, and the predicted results are in good agreement with the experiment data. Therefore, the proposed...
This paper considers the problem of stabilization of switched linear systems with multiple time-delays. If the convex combination SigmaalphajAtildej is Hurwitz and the upper bound of delays has a limitation, the system is stabilized under a switching rule and the switching rule has been designed. The single-Lyapunov function is used to analyze the stabilization of the system with a sufficiently small...
The relative weight of every influencing factor is figured out by building the layer evaluation model of the energy-saving and emission reduction. Based on this model, combing with the multi-attribute decision ranking method in the rough set theory, the paper gets an outcome of comprehensive evaluation ranking of provinces in 2006 after the comprehensive consideration of the nine factors including...
Artificial ant colony algorithm is new in the evolution computing. The primary study shows it is a better algorithm with robust based population, but it has some shortcomings such as its slow computing speed, and it is easy to fall in local peak in large scale problem. To overcome these deficiencies, an improved ant colony algorithm is designed through abstracting the advantages of particle swarm...
M. Neumann in gave a public problem. For an ntimesn inverse M -matrix A, the Hadamard product AdegA is an inverse of M -matrix. They have checked the conjecture without failure on many examples. So far, the conjecture has not been proved. In the paper, we present a different class inverse M - matrix and investigate the Hadamard product AdegA and AdegB are closed. If A and any Ai(i=1,2,middotmiddotmiddotN-1,N)...
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