The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The distributed routing protocol is widely used in wireless sensor networks. But it is mainly designed for homogeneous networks and also has the disadvantages of irrationality of choosing cluster head and unbalanced energy consumption of nodes. Through theoretical studies, a new protocol of the cluster multi-hop transmission (CMHT) for heterogeneous sensor networks is proposed. The algorithm selects...
Notice of Violation of IEEE Publication Principles"A Scenario-Based Test Case Generation Framework for Security Policies"by Chen Yan and Wu DanInternational Conference on Computational Intelligence and Security, 2009. CIS '09 December 2009, pp. 489-493After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been...
Regarding assessment level of experts in group decision making based on different granularity linguistic judgment matrices, the linguistic judgment matrices are quantified through constructing transfer function in this paper, the matrices are transformed into the reciprocal matrices with 1-9 scale, furthermore a method to assessment level of experts is proposed based on the theory of mathematical...
Polychlorinated diphenyl furans is included in the blacklist of so-called persistent pollutants. The poisonousness of Polychlorinated diphenyl furans has relation to its structure. Some index of polychlorinated diphenyl furans were defined and calculated by the technique of molecule graphics and AMl. Quantitative structure - activity relationship for estimating toxicity of polychlorinated diphenyl...
With the fast development of World Wide Wed, Web-based applications and services should allow user to get the right personalized information quickly and effectively. User profile acts a very important role both in Web service personalization and information sharing. In this paper, a new user profile model was proposed to store the characteristics and preferences of person. By using intuitionistic...
Grid computing architecture was defined to be a complete physical layer. The functions of information systems based on grid architecture are resources sharing, collaborative processing, etc. System performance is calculated from resource usages of all grid nodes. If we have load-balancing in all grid nodes, we will have good performance in the system. All the grid nodes are divided to supervisor,...
This paper gives a new analytical solution for assessment level of experts in multi-attribute group decision-making. A new consistent estimator is made by the method on basis of mathematical statistic theory, according to experts' information provided in decision-making matrices, assessment level of experts is estimated and judged adversely, that is difference of assessment level and estimation of...
For IPv6 and IPv4 network seamless interconnection question, it is very essential to study IPv4/IPv6 intercommunication technology to ensure smooth transition of IPv4 to IPv6. To solve the seamless interconnection question, this article mainly researches IPv4 to IPv6 development's intercommunication question of three stages, including IPv6 based-IPv4 network interconnection, IPv4/IPv6 transparent...
Two types of 45deg-chamfers are designed to enhance the light transmission of a 90deg-bent hollow waveguide formed by omni-directional reflector (HW-ODR). The simulation shows that the proposed designs have increased the transmission efficiency, compared with that of an abrupt L-shape HW-ODR.
The problem how the shipping proprietors stimulate their employees to reduce costs under asymmetric information is discussed on the basis of principal-agent theory. The shipping proprietors determine a contractual base according to their demand and how much the employees confirmed, and compare it with the actual cost so as to offer reward or penalty to the employees. Based on such contractual procedure,...
Edge detection of images is a classical problem in computer vision and image processing. The key of edge detection is the choice of threshold; the choice of threshold directly determines the results of edge detection. How to automatically determine an optimal threshold is one of difficult points of edge detection. In this paper, Sobel edge detection operator and its improved algorithm are first discussed...
This paper builds up supply chain synergy marketing game model based on retailer investment level and manufactory investment level, applying the game theory to analyze the game methods of the manufactory and retailer under the different structure markets, It is discussed the related factor which different marketing mode influenced manufactory and retailer profits level, It is studied the synergy marketing...
The premise of the enterprise that implements the product family architecture is the analysis to the sailed products history data, carrying on accuracy demarcation of the customer sets and products sets. But, the traditional cluster methods consist in simultaneous one partitioning of the set of products or the set of customers. In this paper we review the most widely used and successful biclustering...
A practical and convenient system is put forward in this paper to obtain the roughness parameter of soil surface profile correctly. Its composing, workflow were introduced, the feasibility was demonstrated, and the calculated data was analyzed. After theoretical analysis and verification, the system was proved to performance good, and can calculate the roughness parameters of samples accurately.
A new approach is suggested for designing and developing an employment influence factors correlation analysis application where GMDH principle is used for generating it more easily. This approach uses self-organizing data mining importing the concept of evolution based on principle of GMDH and enables the knowledge extraction process on a highly automated level and generates optimal complex model...
This paper proposes an integration system to the logistics enterprise information system in distributed heterogeneous environment. We establish a framework structure of universal data mining system based on logistics data warehouse and apply the proposed system into practical management of logistics and shipping enterprises. Feature extraction and data sample classification from large-scale data warehouse...
Fuzzy clustering is an important approach in data mining. It has been applied broadly in many aspects and receiving great attention from enterprisers and scholars. This paper makes use of MATLAB language to produce a fuzzy clustering algorithm for classifying electric power companies according to some general financial indexes at the end of 2006, such as ratio of operating income, ratio of stockholder's...
Usually on-off magnetism team motor speed-adjusting adopts traditional linear control algorithm (such as PID). In modern control system, it is nonlinear, multivariable, multi-coupling, high-dimension and the object is time-varying, uncertain and difficult to describe by math model because of the complex control object. The traditional algorithm is difficult to meet the need of on-off magnetism team...
A small size group signature scheme based on RSA cryptosystem is described in this paper. Due to the special algebraic structure of RSA, one public key and two corresponding private keys are available. The two private keys are used as signature keys for group members. The signature operation includes an ordinary RSA signature and a zero knowledge proof about signature key. Compared with most group...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.