With the extensive integration of the Internet,social networks and the internet of things,the social internet of things has increasingly become a significant research issue.In the social internet of things application...With the extensive integration of the Internet,social networks and the internet of things,the social internet of things has increasingly become a significant research issue.In the social internet of things application scenario,one of the greatest challenges is how to accurately recommend or match smart objects for users with massive resources.Although a variety of recommendation algorithms have been employed in this field,they ignore the massive text resources in the social internet of things,which can effectively improve the effect of recommendation.In this paper,a smart object recommendation approach named object recommendation based on topic learning and joint features is proposed.The proposed approach extracts and calculates topics and service relevant features of texts related to smart objects and introduces the“thing-thing”relationship information in the internet of things to improve the effect of recommendation.Experiments show that the proposed approach enables higher accuracy compared to the existing recommendation methods.展开更多
Harmony is the general principle for dealing with various social problems and promoting world harmony.China regards“harmony is most precious”as its ultimate value goal.Harmony is the core value and moral sentiment o...Harmony is the general principle for dealing with various social problems and promoting world harmony.China regards“harmony is most precious”as its ultimate value goal.Harmony is the core value and moral sentiment of the Chinese nation and it is the criterion for dealing with the relationships between people,between people and society,and between countries.The principles and methods of harmony should be used to govern a state so that it can be in a state of mutual integration.Harmony is a theoretical prescription for solving many crises and contradictions today.It is the meaning and value of learning and understanding universal rule.Harmony is the core value of the Chinese nation,the noumenon and universal rule of human existence,and the well-being of human existence.Harmony has various levels of expression,and its value is mainly reflected in harmony of oneself,harmony of the people,and harmony of nature.Benevolence is the core value concept of balanced harmony,and the philosophy of balanced harmony is realized through propriety.No matter for the communication between individuals,or the relationships between groups,nations,and countries,harmony is the eternal value pursuit and propriety is its eternal value carrier.展开更多
在认知物联网(CIoT, cognitive internet of things)中,由于主用户(PU, primary user)与次级用户(SU,secondary user)之间的非合作特性,单独依靠传统的频谱感知技术判断频谱接入机会存在一定的不可靠性。作为一种重要的辅助信息,PU与SU...在认知物联网(CIoT, cognitive internet of things)中,由于主用户(PU, primary user)与次级用户(SU,secondary user)之间的非合作特性,单独依靠传统的频谱感知技术判断频谱接入机会存在一定的不可靠性。作为一种重要的辅助信息,PU与SU之间的相互位置信息可以协助判断授权频谱的二次接入可能性。提出了一种低复杂度的基于相邻关系的加权质心定位(NB-WCL, neighbor-based weighted centroid localization)算法,通过解决CIoT中SU的定位问题,从而完成CIoT中各个地理位置上是否能够进行频谱接入的决策。在理论层面分析了二维位置估计的均方根误差(RMSE, root mean square error)性能,通过仿真验证了通信半径、节点密集度、阴影影响、路径损失、连通性度量值以及发送数据次数等因素对于算法性能的影响。理论推导与实验结果表明,相对于传统的定位算法,所提方案为CIoT中的SU定位算法提供了更为强健和良好的定位误差性能,能够有效地增强认知物联网中用户频谱接入的可靠性。该方案可以作为认知物联网中的一种高效实用的定位感知方案。展开更多
基金supported by National Key Research and Development Program of China (2019YFB2102500)China Postdoctoral Science Foundation (2021M700533)+1 种基金Natural Science Basic Research Program of Shaanxi Province of China (2021JQ-289,2020JQ-855)Social Science Fund of Shaanxi Province of China (2019S044).
文摘With the extensive integration of the Internet,social networks and the internet of things,the social internet of things has increasingly become a significant research issue.In the social internet of things application scenario,one of the greatest challenges is how to accurately recommend or match smart objects for users with massive resources.Although a variety of recommendation algorithms have been employed in this field,they ignore the massive text resources in the social internet of things,which can effectively improve the effect of recommendation.In this paper,a smart object recommendation approach named object recommendation based on topic learning and joint features is proposed.The proposed approach extracts and calculates topics and service relevant features of texts related to smart objects and introduces the“thing-thing”relationship information in the internet of things to improve the effect of recommendation.Experiments show that the proposed approach enables higher accuracy compared to the existing recommendation methods.
基金Research on Dong Zhongshu’s Thought and Its Practical Significance,Major Projects of Humanities and Social Sciences of Hebei Education Department(ZD202125)Research on Dong Zhongshu’s Textual Literature and Commentaries of Various Ages,Major Project of National Social Science Fund(19ZDA027)+2 种基金History of Dong Zhongshu’s Academic Research,General Projects of National Social Science Fund(19BZX051)Hebei Social Science Fund Project“Dong Zhongshu’s Exploration of National Governance Thought Resources and Its Value Research”(HB20ZX005)Hebei Provincial Famous Cultural Artists and“Four One Batch”Talent Funding Project“Annotation、Translation and Appreciation of Dong Zhongshu’s Classics”(202126).
文摘Harmony is the general principle for dealing with various social problems and promoting world harmony.China regards“harmony is most precious”as its ultimate value goal.Harmony is the core value and moral sentiment of the Chinese nation and it is the criterion for dealing with the relationships between people,between people and society,and between countries.The principles and methods of harmony should be used to govern a state so that it can be in a state of mutual integration.Harmony is a theoretical prescription for solving many crises and contradictions today.It is the meaning and value of learning and understanding universal rule.Harmony is the core value of the Chinese nation,the noumenon and universal rule of human existence,and the well-being of human existence.Harmony has various levels of expression,and its value is mainly reflected in harmony of oneself,harmony of the people,and harmony of nature.Benevolence is the core value concept of balanced harmony,and the philosophy of balanced harmony is realized through propriety.No matter for the communication between individuals,or the relationships between groups,nations,and countries,harmony is the eternal value pursuit and propriety is its eternal value carrier.
