社群涌现语义适用性视角的情境敏感型群偏好预测研究被引量：2

Context-aware Group Preference Predication Research Based on the Applicability of Emergent Semantic from Community

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摘要 [目的/意义]社会化标注的标签中"涌现"的语义反映的是参与协作标注活动的社群普遍共识的知识,可以用来增强情境敏感型群偏好预测的准确性,但没有参与标注的用户,可能并不认同这种共识,基于社群涌现语义推理该用户偏好就会有偏差。因此研究针对用户的涌现语义适用性和其在情境敏感型群体偏好预测中的应用,以降低偏好预测的可能偏差,提升面向群体的推荐服务的质量。[方法/过程]以群体为信息服务对象,将基于个体实际评价反馈的情境相似度,和基于涌现语义的情境相似度进行相关性分析,度量涌现语义对当前用户的适用性,然后提出群偏好预测中涌现语义的整合应用模式。[结果/结论]实验结果表明,所提的涌现语义适用度应用模式,能提升情境敏感型群偏好预测的准确率,有利于面向群体的资源推荐精准性。[局限]实验数据不够丰富多样,存在稀疏性,涌现语义适用度阈值的调校方法和运算效率问题尚没有进行研究。 [Purpose/significance] The emergent semantic from social tags is the knowledge representing general consensus of the community involved in collaborative labeling activities,which can be used for the improvement of context-aware group preference prediction. But users who are not involved in the labeling activity may not agree with this consensus,therefore user preference based on community emergent semantic reasoning may be biased. In view of this problem,the paper tries to reduce the bias and improve the quality of recommendation service for community groups. [Method/process] Taking groups as information service objects,the paper makes a correlation analysis of context similarity between users＇ actual evaluation feedback and emergent semantics,measures the semantic applicability for current users,and proposes the integrated application model of the emergent semantic in group preference prediction. [Result/conclusion]The experiment results show that the proposed emergent semantic applicability model can improve the prediction accuracy of context-aware group preference,which is good for the accuracy of resources recommendation for the public. [Limitations]The experiment dataset is sparseness and not rich and diversified enough. Also,the adjustment methods of emergent semantic applicability＇s threshold and the efficiency of the algorithm have not been studied.

作者胡慕海陈艳霞谢静陈勇跃

机构地区武汉纺织大学武汉市妇女儿童医疗保健中心产二病区

出处《情报理论与实践》 CSSCI 北大核心 2018年第5期85-90,119,共7页 Information Studies:Theory & Application

基金教育部人文社会科学青年基金项目"移动虚拟社区的群推荐信息服务研究--以涌现知识和时空情境整合的视角"(项目编号:13YJC870009) 湖北省教育科学"十二五"规划课题"基于个性化推荐的数字教育资源建设及教学服务优化研究--以省属高校精品课程为例"(项目编号:2012B075) 湖北省教育厅科研计划项目"虚拟社区动态情境下面向社区群组的信息推荐研究--以我国典型虚拟社区为例"(项目编号:B2013202) 湖北省教育厅人文社会科学项目"基于不确定性突变性情境集成应用的知识管理研究"(项目编号:2012G300) 湖北省高等学校人文社会科学重点研究基地--企业决策支持研究中心项目(项目编号:20170303)的研究成果之一

关键词社会化标注涌现语义适用度情境用户偏好群偏好预测 social tagging emergent semantic applicability context user preference group preference prediction

分类号 G254 [文化科学—图书馆学]