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Although it is believed that many animals tend to move together as group motion has greater benefit, until now we know only a little on how individuals interact with their neighbors. In this study, we build a directed social network for large herbivores motion based on a complex network analysis framework. By calculating the basic statistics of the two networks (for two interacting species), such...
In this paper, we propose a general stochastic model for virus propagation on the online social network. The model considers the time interval of users re-login in SNS network, the number of users in one's friend list, and propagation mechanism, utilizes SEIR model, which is an epidemic model, and finally establishes the dynamic evolution equations. The dynamic evolution equations describe the change...
With the popularity of information and content items that can be cached within ISP networks, developing high-quality and efficient content distribution approaches has become an important task in future internet architecture design. As one of the main techniques of content distribution, in-network caching mechanism has attracted attention from both academia and industry. However, the general evaluation...
Although recent studies show that both topological structures and human dynamics can strongly affect information spreading on social networks, the complicated interplay of the two significant factors has not yet been clearly described. In this work, we find a strong pair wise interaction based on analyzing the weighted network generated by the short message communication dataset within a Chinese tele-communication...
Recent statistics suggest that online social network (OSN) users regularly share video contents from video sharing sites (VSSes), and a significant amount of views of VSSes are indeed from OSN users nowadays. By crawling and comparing the statistics of same videos shared in both RenRen (the largest Facebook-like OSN in China) and Youku (the largest Youtube-like VSS in China), we find that the huge...
The paper is based on the machine learning development status and in-depth analysis and comparison of Mahout's machine learning algorithm, summarizes the principles of different Mahout's recommendation algorithm, characteristics, implementation method and function. Then the paper takes the characteristics of user recommendation system into consideration, design the user recommendation system, analysis...
Peer-to-peer file sharing systems, most notably Bit-Torrent (BT), have achieved tremendous success among Internet users. Recent studies suggest that the long-term relationships among BT peers can be explored to enhance the downloading performance; for example, the cooperation of peers to re-share old contents. However, whether such relationships can be built still remain unknown. In this paper, we...
Characteristics of surface defects of hot rolled steel plates were analyzed, and an algorithm for detection of hot rolled steel plates was developed. Based on undecimated wavelet transform and mathematical morphology, the algorithm can solve the problem of false alarms by scales and water marks. Positions of defects were determined by modular maximum of inter-scale correlation of wavelet coefficient...
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