ID 原文 译文
56778 为解决表格数据中存在属性缺失和错误的问题,我们采用模式匹配和深度学习模型相结合的策略从文本数据中自动学习属性值,进行属性补全和纠错,有效提高了知识图谱的覆盖率和正确率. For solvingthe problem of missing attributes and errors in tabular data, we propose a method of combining pattern match?ing and deep learning models to extract attribute information from text data for attribute identification. Theexperimental results show that our method can effectively improve the coverage and accuracy of KGs.
56779 地理知识是人类对地理现象或事物空间分布、演变过程和相互作用规律的认知结果. Geographical knowledge is the cognitive result of human beings on the spatial distribution, evolution,and interaction of geographical phenomena or things.
56780 当前大数据环境下的地理信息服务,普遍存在"数据海量、信息爆炸、知识难求"现象. At present, there is a common phenomenon, i. e. , “mass ofdata, information explosion, and hard to find knowledge” in geographic information services in the context of bigdata.
56781 地理知识图谱是一种利用语义网络对地理概念、实体及其相互关系进行形式化描述的知识系统,在地理知识理解、地学问题求解、时空预测决策等方面具有巨大的应用潜力. The geographic knowledge graph (GeoKG) is a knowledge-based system that uses the semantic network todescribe geographic concepts, entities, and their relations. It has application prospects in geographic knowledgeunderstanding, geological problem solution, as well as spatiotemporal prediction and decision-making.
56782 地理知识除了具有通用知识的内涵和特点之外,还具有特定的时空特征和地学机理特点. In additionto the characteristics of general knowledge, geographic knowledge also has specific characteristics of spatiotemporaland geoscience mechanism.
56783 因此,地理知识图谱构建和应用既具有一定的通用性,同时具有一定的专业特殊性. Therefore, the construction and applications of GeoKGs have both generality andcertain professional specialty.
56784 本文结合地理知识的时空特征和知识图谱的表达形式,提出了一种顾及时空特征的地理知识图谱构建方法. Based on the spatiotemporal characteristics of geographic knowledge and thestructure of knowledge graphs, we propose a method for GeoKG construction that considers the characteristicsof time and space.
56785 首先,系统梳理了地理知识图谱构建的基本思路和技术流程,并简要阐述了地理知识获取、地理知识抽象与表达、地理知识组织与管理3个关键环节的主要研究内容及其进展.其次,从地理学回答的基本问题出发,对地理知识的内容特征进行概括和抽象,构建了涵盖"地理概念–地理实体–地理关系" 3个层次的地理知识表达模型,用于描述不同粒度地理知识语义单元的基本组成及其逻辑关系. Firstly, we describe the basic ideas and technical processes of GeoKG construction andbriefly explain the main research contents of geographic knowledge acquisition, geographic knowledge abstractionand representation, as well as geographic knowledge organization and management.
56786 最后,借鉴知识图谱采用的语义网络知识表示方法,提出了基于"过程–关系"的地理知识表示方法. Secondly, based on theanalysis of basic questions answered by geography, we summarize and abstract geographic knowledge elements andthen explore a geographic knowledge representation model with three levels of “geographical concepts-geographicentities-geographical relations” to describe semantic units of geographical knowledge and their logic relations.
56787 该方法以时间和空间特征为基本条件,以地理实体的状态划分为基础,实现了地理实体演化过程以及复杂地理关系的形式化描述. Finally, the spatiotemporal features are assumed as the basic conditions, and based on the statuses of geographicentities, we propose a formal method based on “process-relation” to represent the evolution process of geographicentities and complex geographic relations.