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Decision tree classification algorithm provides a fast and effective classification method for datasets, and it calculates information gain of each attribute, and selects the attribute with the greatest information gain as the split. However, to the best of our knowledge, when we use the traditional decision tree algorithm to analyze data in real life, we will encounter some unusual situations. This...
The paper presents a five-region nonlinear scaling algorithm to solve the scaling distortion when aspect ratio of target image is different from aspect ratio of source image. Based on the region points set by users, it can adjust scaling factor automatically to make horizontal scaling ratio keep the same vertical scaling ratio in the middle region and different in other regions. Simulation results...
Neural network can precisely approach the inverse function of function of nonlinear equation groups, and solution for the groups can be computed using iterative algorithms. In the experiment, the emergence of endless iterations is found in the iteration process because of premature convergence of error, and it is also found that the value of convergence not always is the minimum. Iterative algorithm...
The stream data mining is a hot research topic in recent years. In order to improve the efficiency of stream data mining, this paper designs an online stream data clustering algorithm IStrAP. IStrAP considers the features of stream data, such as potentially infinity, rapidness, and inability to scan historical data repeatedly, and introduces a method of eliminating outliers to the existing algorithm...
With development of business process management technology and information technology, we can simulate business processes. How to describe business process by structural language and check business process model are the issues. We develop a business processes system by SOA and model business process actions by Pi-calculus and check the model by MWB.
This paper proposes a new detection algorithm based on rough set. It uses information centrality as a measure of correlation between nodes. While dealing with the boundary nodes between communities, it uses upper and lower approximation subsets so as to better simulate the real world, then it clusters nodes to certain community and identifies the network to k communities. It identifies the ideal community...
Social media is a new media platform based on Web2.0, Sina Microblog is the most mature one among the domestic social media platforms. In order to find out the problems and difficulties when using microblog for marketing, 100 enterprises' official accounts were selected as examples. By collecting and analyzing the data of each enterprise, many problems have been found. Many small and medium enterprises...
In this paper, two independent component analysis (ICA) based algorithms are proposed for blind multiuser detection (BMUD) in DS-CDMA systems. The first algorithm is Per-processing for Noisy ICA Based Blind Multiuser Detection that can reduce the noise in the detection system but it still has the accumulation of error. The second algorithm is Estimation and Elimination of Noise for ICA Based Blind...
In this paper, synthetic evaluation index system about enterprise's innovation vigor is established from five aspects of innovation assets, manpower resource, organization and management of innovation, innovation performance, and innovation environment. A fuzzy evaluation model for enterprise's innovation vigor is presented on its fuzzy characteristic. The model provides scientific reference for enterprise...
In this paper, a method is proposed for large group decision making with multi-attribute based on ELECTRE III of Stochastic Dominance Relations. First of all, each attribute's information of large group of decision makers is turned into its probability distribution, then for each property we construct the corresponding stochastic dominance relationship matrix. On this basis, improved ELECTRE III method...
In the vehicle routing problem (VRP), it is usually difficult to confederate the cargo and arrange vehicles path. Due to performance reasons, the traditional shortest path algorithm can not be applied to the large scale of VRP. On the basis of the VRP mathematical model, this paper constructs a mixed climbing particle swarm algorithms to solve the problem. First, through coding, the VRP problem is...
Using Monch fixed point theorem and progressive estimation method, we study the existence of solutions to nonlocal Cauchy problem for nonlinear n-th order mixed impulsive integro-differential equations in Banach spaces. Certain restricted conditions on a priori estimation and noncompactness measure estimation are not being used.
Knowledge-innovation talents, as the core element of competition and technological development, are the first strategic resources of the national and regional development. Then, the innovation capacity of technological innovators is the fundamental factor which influences the effect of the technology and knowledge innovators and is also the research focus of this essay. According to the AHP, the paper...
Constraint-based recommenders support users in the identification of interesting items from large and potentially complex assortments. In cases where no recommendation could be found for a given set of requirements, such systems propose recommendations that indicate minimal sets of faulty requirements. Unfortunately, such recommendations are not diversified and do not include repair proposals which...
The livestock industry is the pillar and dominant industries of Guangxi economic construction. A good work of the Guangxi beef production forecast has important practical significance for the economic development of Guangxi province and the development of livestock production strategies, and increasing farmers' income. According to the gray system theory, by using beef production data of Guangxi Zhuang...
In the visible light communication (VLC) system, the discrete multitone modulation (DMT) is one of the alternative efficient modulation schemes and the bit-power distribution among related carriers is crucial to the final channel capacity. In the paper, the channel capacity in Krongold algorithm is compared with the upper bound and the lower bound. The former is in the water-filling principle and...
Relative risk plays an important role in identifying and assessing diseases in the case-control association study, but the homogeneity and heterogeneity of the RR is often ignored in M stratum 2*2 tables and cohort (2*k tables) studies. This paper proposes a hypothesis test for homogeneity and heterogeneity of the RR based on the M-H methods.
In this paper we propose priority back off algorithm for random access procedure setting different re-access probability to users depending on their different group priority grades, different user priority grades and different number of collisions in TD-LTE trunking system. Its objective is to make these groups or users with high priority have lower collision rate and access time delay than those...
A new kind of bivariate geometric distribution is proposed, which is called as bivariate geometric distribution-type II. Then its properties are discussed systematically.
For the respective performance characteristics of the global positioning system (GPS) and inertial navigation system (INS), a tightly coupled GPS/INS integrated navigation system based on the pseudo-distance difference was proposed. The paper presents the detail study and theoretical analysis of the kalman filter algorithm for the GPS/INS integrated navigation system, and focuses on the establishment...
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