【摘要】 知识图是一种语义网络。本文旨在综述知识图项目的研究与进展。知识图项目的第一阶段是讨论如何从文本中抽取和建立知识的结构。通过使用一组限定的概念之间的关系类型所构成的图来组织和表示抽取出来的知识。经汇编后所得的图用来研究它的相关子结构。这一过程产生了称为 KISS的程序。知识图项目的第二阶段是讨论知识图的表达能力。主要是用知识图来表示自然语言。这一阶段导致了关系类型的扩展和知识图与其它表示技术的比较更多还原

【Abstract】 A knowledge graph is a kind of semantic network.In this survey paper the development of the project Knowledge Graphs is discussed. The first phase of the project was dedicated to structuring knowledge extracted from texts.Using a very restricted set of types of relations between concepts,graphs were constructed that represent the extracted knowledge.These graphs were then combined and the resulting graph was investigated with respect to its relevant substructures.This process was implemented in a program named KISS. The second phase of the project is dedicated to the representation abilities of knowledge graphs.An obvious challenge is the representation of natural language.This has led to an extension of the number of types of relations and to a comparison of knowledge graphs with other representational techniques.更多还原