高级检索
王明飞, 范辰, 贾金原. 结合社交推荐和推拉策略的渐进式DVE预下载机制[J]. 计算机辅助设计与图形学学报, 2015, 27(7): 1223-1229.
引用本文: 王明飞, 范辰, 贾金原. 结合社交推荐和推拉策略的渐进式DVE预下载机制[J]. 计算机辅助设计与图形学学报, 2015, 27(7): 1223-1229.
Wang Mingfei, Fan Chen, Jia Jinyuan. Progressive DVE Prefetching Mechanism Using Social Recommendation and Pull-Push Strategy[J]. Journal of Computer-Aided Design & Computer Graphics, 2015, 27(7): 1223-1229.
Citation: Wang Mingfei, Fan Chen, Jia Jinyuan. Progressive DVE Prefetching Mechanism Using Social Recommendation and Pull-Push Strategy[J]. Journal of Computer-Aided Design & Computer Graphics, 2015, 27(7): 1223-1229.

结合社交推荐和推拉策略的渐进式DVE预下载机制

Progressive DVE Prefetching Mechanism Using Social Recommendation and Pull-Push Strategy

  • 摘要: 为了提高基于对等网络的分布式虚拟环境(DVE)场景预下载的预测精度并降低场景数据传输延迟,将社交推荐和推拉混合策略应用到DVE场景预下载中.首先描述和量化节点化身在虚拟环境中的兴趣,并对化身间相似度进行计算,生成预推荐场景集;然后将化身的视野区域划分为预拉取和预推送区域,提出针对不同区域预下载的推拉策略.基于开源DVE平台FLo D进行的实验结果表明,该机制能提高场景的预测精度并减少信息交互次数,进而提升DVE场景传输效率和化身漫游流畅度.

     

    Abstract: In order to improve prediction precision of the scene prefetching and reduce the scene transmission latency in the distributed virtual environment(DVE) based peer to peer network, we propose an efficient progressive prefetching mechanism, which combines the social recommendation with different Pull-Push strategies. First, we describe and quantify the avatar interests in the virtual environment to obtain the interest similarity between avatars and generate pre-recommend scene set. Then, we divide the avatar viewing area into the pull area and the push area, and provide different Pull-Push strategies for prefetching the scene in different area. Finally, we demonstrate the proposed prefetching mechanism using an open-source DVE platform called FLo D. Experiment results show that our approach improves the scene prediction precision, reduces the information exchange, and promotes the scene transmission efficiency and avatar roaming fluency.

     

/

返回文章
返回