Internet + Education has a good development prospect. The SPOC platform can make offline classrooms more dynamic, but SPOC is currently used less in basic education.The article firstly divides the learning factors that affect mathematics effectiveness into curriculum design and implementation, individual...

The principle of drawer, also known as the "pigeon (nest)" principle, is a common method for solving existential problems. It was first proposed by the German mathematician Dirichlet. Therefore, it is also known as the Dirichlet principle in mathematics. In this paper, the combination of algorithms and...

For the satellite constellation design problem, the computational complexity of regional coverage performance evaluation has posed great difficulty to classical Pareto dominance-based algorithms discovering the entire Pareto front of the problem, while the decision makers are often interested in a limited...

Aiming at the problem that the color image with more detailed textures is not highly segmented in the image segmentation process, a PKGC image segmentation method based on improved edge detection difference ratio is proposed. The method first constructs an energy function by using a parametric kernel...

We investigate the behavior of a first variation under an analytic Feynman integral and a convolution for cylinder functions〖 f((h_1,x)〗^~,⋯,(h_n,x)^~ ) and we prove that the analytic Wiener integral and the analytic Feynman integral of the convolution of two cylinder functions can be successfully...

On the basis of widely reading papers published in the 13 core Chinese journals recently and with methods of literature review, expert interview and questionnaire, this paper points out the problem concerning regression in sports research, such as the model examination, the content of the case study,...

In the safety management system, risk management is the core and it is the key to complete risk management for scientific risk evaluation. However, in the previous risk evaluation, the safety sheet inspection technique is often used. Also, workers’ experience is referred to roughly estimate the risk...

The auto-correlation and cross-correlation of a nonlinear stochastic energy harvesting system are studied by stochastic simulation method, which show periodic oscillation and gradual attenuation, implying that the nonlinear stochastic energy harvesting system possesses complex dynamical behaviors. Among...

We examine whether the risk preference in losses increase the disposition effect. We take 9526 investors’ annual trading data of a large china’s futures company in 2013 as an example. The results show that most of investors have disposition effect, only the professional investors have a moderate risk...

Income inequality is an inevitable phenomenon in each country. National government can use the macroeconomic policy. This paper is try to find a relationship between the factors of index systems of macroeconomics and income inequality. Based on the factors of macroeconomics in world bank data, we acquire...

Based on the sparse characteristic of most signals under some transformation, compressive sampling has been brought out to replace the traditional Nyquist theory based sampling. This paper presents a Bayesian method to recovery the original signal from compressed measurements. A hierarchical Bayesian...

Noise reduction and signal separation are very important basal works in signal processing. Pattern Filtering Method（PFM） , which is introduced as a new method for signal processing in this article, is applied to cross-hole tomography signal processing. Acoustic Computed Tomography (CT) signal with noise...

The space station has gradually entered the world. It is equipped with centrifuges for variable gravity experiments. The stagnation of centrifuge may lead to the increase of motor current, which may lead to fire. Vibration signal of centrifuge is unstable and asymmetric. Secondly, the first order modal...

The storage of unstructured data plays an important role in the implementation of big data environment, thus, choosing an efficient database can provide an excellent solution for data mining. In this paper, two database technologies, MongoDB and PostgreSQL, are used as performance tests for storing unstructured...

The stack is a very special data structure that can only be inserted and deleted on its side, and is a very special linear table. It in accordance with the first to go out of the order of the principle of data storage, that is, first entered the data into the bottom of the stack, the last entry into...

Demand response plays an important role in realizing power supply and demand balance as well as optimizing resource allocation. In an increasingly open market environment, it is necessary to study the interests of each participant in demand response and formulate a reasonable and effective response mechanism....

The problem of college students’ learning disability is one of the problems that need to be solved in universities. This paper aims at the college students’ learning disability and applies linear regression model to analyze the relationship between learning behavior and achievements of students. It concludes...

In order to objectively and effectively evaluate the scientific and technological innovation capability of colleges and universities, an evaluation index system including science and technology input, achievement output and transformation, and scientific and technological innovation support was established....

Social media platforms are the main resources to collect people’s sentiments and opinions. We can extract quantities of useful information from the social network. Weibo is the most popular social networking application in China. In this paper, we’ll describe our attempts at producing a state-of-art...

In the past, people studied the stock market based on the assumption that the stock entity is known to be affected by the news. However, due to this assumption, these methods inevitably ignore the news without stock entities, and many news without stock entities will also have a significant impact on...