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.
Link prediction plays an important role in complex network analysis. It is to predict the existence of an unknown link or a future link in a network. Classical methods for link prediction evaluate the similarity of vertices based on common neighbors, and denote that every common neighbor makes equal contribution to the connection likelihood. However, common neighbors may play different roles depending...
As the driving task is diversified from singularity, the driver's mental load is increased with the coordinated development between intelligent traffic and information technology. To carry our two different styles for test experiment, different kinds of music test and composite driving test mixed with principal-subordinate driving tasks, three typical tasks have been done in the driver's lab as examples...
Link prediction in network attempts to predict the exist-yet-unknown links or future links in accordance with the node properties and the network typology. It has been used in many domains such as social network, biology experiment, and criminal investigations. Classical methods are based on graph topology structure and path features but few consider clustering information. Actually, clustering information...
Image quality assessment (IQA) has undergone a booming period during the last decade. Contrast change, being an important type of visual alteration for images, has not been seriously treated yet in the current IQA research. To address this problem, in this paper we propose a new reduced-reference (RR) IQA metric for contrast-changed images by exploiting local similarity information and global statistics...
Image denoising has been fanatically researched for a very long time in that it is a commonplace yet important subject. The task to testify the performance of different image de-noising methods always resorts to PSNR in the past, until the emergence of SSIM, a landmark image quality assessment (IQA) metric. Since then, a vast majority of IQA methods were introduced in terms of various kinds of models...
Cooperative content offloading is a promising technology to lessen heavy burden of wireless networks and improve the quality of downloading services. Since few users are voluntary in providing free assistance, auction-based incentive mechanisms are designed to encourage participation. In existing auction-based incentive mechanisms, each provider only acts as a service seller. However, a provider could...
There exists a simple approximate condition for general homogeneous multicore fibers to achieve zero differential group delay (DGD). The zero-DGD wavelength can be controlled effectively by introducing a refractive-index dip in the cores.
The paper focuses on assessing management right value of scenic areas, a significant issue which hasn't been settled yet. Different approaches are identified to set up the integrated assessment system which is proposed with reference to assessment approaches of other fields. The extent of dependency on data, the complexity and the scientificity of the calculation are all factors considered when appraising...
In order to enhance terrain data network service performance, P2P technology is gradually used in large scale terrain data roaming system. It is vital to research on how to construct terrain data peer-to-peer (P2P) storage model according to its features. In this paper, we present a terrain data P2P storage model according to the pyramid model. In our terrain data P2P storage model, terrain data is...
Vegetation canopy water content is essential to monitor crop water deficit and natural communities in the diagnosis assessment of drought, forest and grassland fire risk prediction as well. In this study, four 8-day composite MODIS surface reflectance images were used as the basic data. Global Vegetation Moisture Index (GVMI) and Equivalent Water Thickness (EWT) model were adopted to estimate the...
The two degrees stand-rolls system model of four-high mill was built, the electro-hydraulic IGC servo system was further built. The weighting functions were optimized according to GA (genetic algorithm). The closed loop controller of roll gap was designed based on the H mixed sensitivity robust control theory because of the parameter uncertainty of the IGC model. Simulation results and comparison...
Based on the analysis of the water quality monitoring data of Xingkai Lake in 2008, the eutrophic level of the water body was evaluated through a comprehensive trophic state index method. The results showed that the comprehensive trophic state index (CTSI) was 47.7 for Da Xingkai and 50.1 for Xiao Xingkai, which indicated that Da Xingkai is in a mesotrophic state and Xiao Xingkai in a light eutrophic...
By studying the structure of fuzzy information and the mechanism of fuzzy optimization, one concept, quasi-linear fuzzy number, is first proposed in this paper. It has been proven that quasi-linear fuzzy number can approach to any form of fuzzy number under Lp-metric. Second, by distinguishing principal indexes and assistant indexes, this paper gives the comparison method of fuzzy information based...
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.