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Evolution mechanism of Weibo top news competition

Chinese Physics B 2021年第12期30卷 656-663页

作者： Fuzhong Nian Jingzhou Li Xin Guo School of Computer&Communication Lanzhou University of TechnologyLanzhou 730050China

In a certain period,some news will compete for the top news to gain the most attention and influence,and more news will be submerged in the ocean of news and become *** article deeply studies the evolution process and competition mechanism of the dissemination of Weibo *** this paper,we innovatively propose a pre-processing scheme for traditional small-world networks and scale-free networks and divide nodes into three roles:fans,passersby,and *** competition mechanism of Weibo top news is defined from the aspects of node role and node aggregation degree.A network evolution model is established based on the competition *** propagation characteristics of the network evolution model are deeply analyzed,and simulation experiments are performed on the small-world network and the scale-free ***,the validity and rationality of the new model are verified through comparative experiments,and a feasible scheme for the propagation of top news on Weibo is given.

关键词： Weibo top news role interest degree

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A point-based rendering approach for real-time interaction on mobile devices

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Science in China(Series F) 2009年第8期52卷 1335-1345页

作者： LIANG XiaoHui ZHAO QinPing HE ZhiYing XIE Ke LIU YuBo State Key Laboratory of Virtual Reality Technology and Systems School of Computer Science and Technology Beihang UniversityBeijing 100191 China

Mobile device is an important interactive platform. Due to the limitation of computation, memory, display area and energy, how to realize the efficient and real-time interaction of 3D models based on mobile devices is an important research topic. Considering features of mobile devices, this paper adopts remote rendering mode and point models, and then, proposes a transmission and rendering approach that could interact in real time. First, improved simplification algorithm based on MLS and display resolution of mobile devices is proposed. Then, a hierarchy selection of point models and a QoS transmission control strategy are given based on interest area of operator, interest degree of object in the virtual environment and rendering error. They can save the energy consumption. Finally, the rendering and interaction of point models are completed on mobile devices. The experiments show that our method is efficient.

关键词： virtual environment mobile devices point models simplification QoS control area of interest interest degree

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