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Supply chain is a complicated, open system, for the constant development, and fierce degree of market competition of the society increase day by day, the discrimination and management of risk of Supply chain are more essential. Kinds of risk factors of Supply chain are analyzed in the text, according to the influence degree of each risk factor, a method combined BP neural network and fuzzy evaluation...
Project evaluation system has a significant effect on the decision-making of IT project. IT project evaluation exists throughout all the phases of the IT project, including IT project preparation period, IT project construction period and IT project operation period. On the basis of analyzing the significance, necessity and the characters, this paper did a systematic study on the evaluation system...
Free-riding behavior is serious problem in P2P networks, which not only decreased the size of network services but also severely restricted the advantages of P2P System. To solve the free-riding problem, a new micro-payment platform based on trust mechanism is presented. In the platform the nodes can exchange paid services. Accounting mechanism in the platform is used to store service information...
In this paper we propose a hybrid of video games and classical outdoor games to address two issues: first the health related concern and second making the game as entertaining as video and computer games. Our proposed solution consists of tangible tiles with the capability of interacting with the user and each other. In addition to this the paper also contributes a genetic algorithm (GA) based approach...
This article first extends Description Logics ALC and put forward ALC+, which is extended on ALC by adding transitive role, inverse role, role disjunction, role composition and general number restriction, and defines its syntax and semantics. Then, we discuss the mainly knowledge reasoning problem about concept satisfiability of ALC+, and give the determinant algorithm of the concept satisfiability...
This paper describes an improved semaphore with policies in Windows operating system. We introduce policies to help operating system kernel select next process (or thread) in the waiting list queue to satisfy. The paper present live policies: first in first out (FIFO), first in last out (FILO), highest priority first out (HPFO), lowest priority first out (LPFO) and random. We discuss the design and...
For the correlation structure existed in the multiple failure modes of component, we present a new theoretical method for reliability calculation involving failure correlation in mechanical systems. The static and dynamic calculation models based on Copulas theory were given. Since w-degree integral operation was substituted by w-degree difference operation, the calculation is simplified greatly....
In this paper, we provide the degree reduction algorithm for negative degree Bezier curves. By the uniform parameterization of control polygons and the definition of discrete derivatives of piecewise linear functions, we prove that the degree reduced control polygons and their discrete derivatives converge in the limit to the original negative degree Bezier curve and its continuous derivatives.
Web frameset is used to organize multiple frames and nested framesets to make the layout of some Web pages more identical and bring the development of Web applications easier, which was wildly used in today 's Web applications. Web applications can only be accessed through dedicated client systems called Web browsers. The behaviors of Web frameset and Web browser interactions influence the functionalities...
The characters of FLASH memory are low-power, long-lived, deep storage density, adapted to strict environment, nonvolatile and the price is decreased, because of these reasons, it is wildly used. However, there are some inherent particularities: low writing speed, bad blocks exist when produced and could generated with using and so on. A new bad block management algorithm is proposed in this paper...
Destruction of interdependencies of multivariable in decomposing hyper-high dimensional problems into single variable is generally the main reason that Conventional CC framework fails to optimize inseparable problems. An improved CC framework is proposed, which designs a basic optimizer that has better performance in high-dimension optimization. The optimizer is a simplex-based genetic algorithm (HD-simplex...
This paper describes attribute extraction, attribute classification and data cleaning process in tourism emergency, builds a widely applicable decision table, and uses the attribute reduction algorithm based on the importance of Pawlak property. The results proves that the decision table after reduction is more beneficial to obtain useful decision rules, on the premise of maintaining constant dependence...
Based on martingale theory in Banach space, using the limit theorem of the B-valued martingale difference sequence, a strong limit theorem for arbitrary sequence series of B-valued random variables is obtained. In addition, according to Radon-Nikodym property of real number space, the main result of this paper contains some well known conclusions in the real number space.
Through analysis of buckling and stress for a composite cylindrical shell, such technique targets as critical load, strength and stress distribution of 3D-braided composite cylindrical shells are calculated numerically. These results indicate that the effect of buckling to the 3D-braided composite CNGV is indubitable. Based on the 4-step 3-D circular braiding procedure and the theoretical analysis...
The abstract monotone iterative technique is well know and very important for applications to a variety of situations. With partial order defined in metric space, the purpose of this paper is to discuss the existence of coupled fixed point for mixed monotone mapping pairs. The results are quite different from the results in recent references. The paper also gives two examples to illustrate the theorems...
Recommender systems have emerged in the past several years as an effective way to help people cope with the problem of information overload. However, collaborative recommender systems are known to be highly vulnerable to attacks. Attackers can inject biased profile data to have a significant impact on the recommendations produced. This paper provides a comprehensive review of shilling attack in recommender...
On the basis of studying the working principle of discrete fuzzy control, according to the structural characteristic and the ability of RBF neural network approaching to any unknown function, the clustering and nonlinear mapping function of RBF neural network are used to implement discrete fuzzy inference and control. If only a RBF neural network is suitably designed and well trained by a discrete...
Gong-Che notation (GCN) is a Chinese traditional music notation, in these scores of digital images, single music information is independence connected region each other. This paper brings forward a new algorithm for capturing to a rectangle box of each connected region in Gong-Che notation score image. Firstly, it selects randomly a seed from this region, the seed is the minimal rectangle close box,...
Online social networks (OSNs) have gained popularity among users from all over the world during the past few years. And E-learning has made learning process quite convenient for users by using the networks. However, combing OSNs with E-learning is a new idea. And the role of OSNs in students' E-learning experiences is focused on in this paper. A study of Xiaonei which is one of the most popular online...
Our model is a dynamic network model to the political districting problem. Firstly, we map counties in the state to points in the county-based network. Using depth first search (DFS) algorithm and breadth-first search (BFS) algorithm, we guarantee the continuity and compactness of each district. Also we introduce and use grid-based method to divide counties. Finally, we illustrate this model by districting...
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