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Research community detection from multi-relation researcher network based on structure/attribute similarities 被引量:1
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作者 Ping LIU Fenglin CHEN +3 位作者 Yunlu MA Yuehong HU Kai FANG Rui MENG 《Chinese Journal of Library and Information Science》 2013年第1期14-32,共19页
Purpose: This paper aims to provide a method to detect research communities based on research interest in researcher network, which combines the topological structure and vertex attributes in a unified manner.Design/m... Purpose: This paper aims to provide a method to detect research communities based on research interest in researcher network, which combines the topological structure and vertex attributes in a unified manner.Design/methodology/approach: A heterogeneous researcher network has been constructed by combining multiple relations of academic researchers. Vertex attributes and their similarities were considered and calculated. An approach has been proposed and tested to detect research community in research organizations based on this multi-relation researcher network.Findings: Detection of topologically well-connected, semantically coherent and meaningful research community was achieved.Research limitations: The sample size of evaluation experiments was relatively small. In the present study, a limited number of 72 researchers were analyzed for constructing researcher network and detecting research community. Therefore, a large sample size is required to give more information and reliable results.Practical implications: The proposed multi-relation researcher network and approaches for discovering research communities of similar research interests will contribute to collective innovation behavior such as brainstorming and to promote interdisciplinary cooperation.Originality/value: Recent researches on community detection devote most efforts to singlerelation researcher networks and put the main focus on the topological structure of networks.In reality, there exist multi-relation social networks. Vertex attribute also plays an important role in community detection. The present study combined multiple single-relational researcher networks into a multi-relational network and proposed a structure-attribute clustering method for detecting research community in research organizations. 展开更多
关键词 Community detection multi-relation social network Semantic association
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基于多社交关系的社团划分概率矩阵推荐算法
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作者 张德亮 宋振华 +2 位作者 郑震宇 王新 闫怀创 《齐鲁工业大学学报》 CAS 2024年第3期1-7,共7页
随着大数据的不断发展,用户的个性化推荐得到普遍应用,现有的推荐算法忽略了用户之间的多种社交关系组成的社团结构,但在现实的网络空间中用户间的多种社交关系可以很好的作用于推荐系统。基于多子网复合复杂网络模型,利用多种社交关系... 随着大数据的不断发展,用户的个性化推荐得到普遍应用,现有的推荐算法忽略了用户之间的多种社交关系组成的社团结构,但在现实的网络空间中用户间的多种社交关系可以很好的作用于推荐系统。基于多子网复合复杂网络模型,利用多种社交关系组成的社团结构特性,提出了基于多社交关系的社团划分概率矩阵推荐算法。通过在真实数据集Epinions上与现有推荐算法进行对比,准确率评价指标δMAE、δRMSE分别提高了30%、20%,由此可以证明,基于多社交关系的社团划分概率矩阵推荐算法能有效提高推荐准确率。 展开更多
关键词 多子网复合复杂网络 多关系社交网络 社团结构 矩阵分解
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