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Social network influence maximization problem aims to design algorithms that can maximize the scope of the nodes affected by the specified nodes set. This paper studies and improves existing algorithms by the introduction of hidden influence and floating influence. Experiments show that the HGA algorithm works more effectively.
In case that the traffic resource is limited, cross-border traffic has great impact on urban transportation, and it is necessary for us to study characteristics of Lanzhou cross-border traffic network. In this paper, the characteristics of cross-border traffic network are studied from different aspects based on the theory of complex network. Results show that Lanzhou cross-border traffic network has...
Wireless sensor networks have been used for many delay-sensitive applications, e.g., emergency response and plant automation. In such networks, delay measurement is important for a number of reasons, e.g., real-time control of the networked system, and abnormal delay detection. In this paper, we propose a measurement architecture using distributed air sniffers, which provides convenient delay measurement,...
For any product recommendation systems, the most important thing is to improve the accuracy of prediction of customer preferences on products. If there is not enough information of a product, especially when a new product is introduced into the system, it is difficult to recommend the product to other customers. If we can select few customers to rate this product we may predict more accurate. We term...
Recently, various conformal geometric methods have been presented for non-rigid surface matching and registration. This work proposes to improve the robustness of conformal geometric methods to the boundaries by incorporating the symmetric information of the input surface. We presented two symmetric conformal mapping methods, which are based on solving Riemann-Cauchy equation and curvature flow respectively...
The problem of stability of uncertain T-S fuzzy system has been studied, and the sufficient conditions, which maintain the stability of the system based on the descriptor representation, has been proved. Then, convert these conditions into LMIs (linear matrix inequalities). Our results reduce computation obviously compared with the previous one. For the more relaxed LMIs conditions, a new fuzzy controller...
Teichmuller shape space is a finite dimensional Riemannian manifold, where each point represents a class of surfaces, which are conformally equivalent, and a path represents a deformation process from one shape to the other. Two surfaces in the real world correspond to the same point in the Teichmuller space, only if they can be conformally mapped to each other. Teichmuller shape space can be used...
Homotopy group plays a role in computational topology with a fundamental importance. Each homotopy equivalence class contains an infinite number of loops. Finding a canonical representative within a homotopy class will simplify many computational tasks in computational topology, such as loop homotopy detection, pants decomposition. Furthermore, the canonical representative can be used as the shape...
Video-based information collection has become an important research direction, and moving object tracking technique plays a key role nowadays. The classic corner tracking algorithm doesnpsilat meet the real-time requirement, and loses the object mostly due to occlusions, the change of geometrical scale or/and some similar objects approaching to the object. To solve the problems, a new algorithm based...
This article has analyzed the principle of JXTA network resources localization mechanism thoroughly. In view of the existing problem of JXTA network resource localization mechanism, proposes a new algorithm thinking which combines small world and the interest weaken mechanism of rumors spread, and replaced the inherent strategy by using the dynamic long chain replacement to improve the problem of...
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