计算机科学 ›› 2015, Vol. 42 ›› Issue (4): 147-150.doi: 10.11896/j.issn.1002-137X.2015.04.029
杨 丹,陈 默,孙良旭,王 刚
YANG Dan, CHEN Mo, SUN Liang-xu and WANG Gang
摘要： 面对异构信息空间中具有时间信息的大量相互关联的异构实体数据如作者、论文、产品、电影等,提出一个以实体及关联关系为中心的多层的时态数据模型,即多层的时态实体关联网络MTE-Network,它能有效捕捉异构实体和关联关系的时间信息。基于此时态数据模型,提出了实体搜索的多模态融合的查询模型,其支持用户搜索异构信息空间中的任何类型的实体及相关实体,支持在实体级、实体聚类级和时间轴上的实体搜索,并且满足用户多模态融合实体搜索的信息需求。在真实数据集上的实验结果证明了该时态数据模型和查询模型的可行性和有效性。
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