San Jose State University

A structured way of representing knowledge.
It consists of entities, relationships, and semantic descriptions. In other words, knowledge graphs represent logical relationship between entities.

Knowledge Graph

A Survey on Knowledge Graphs: Representation, Acquisition and Applications

A knowledge graph ,$ \mathcal{G} =  \{\mathcal{E},\mathcal{R},\mathcal{F} \} $
$\mathcal{E}$ - sets of entities
$\mathcal{R}$-  sets of relations
$\mathcal{F}$-  sets of facts,(h,r,t) denoted as triple
h- head
r-relation
t-tail


Mathematical Definition of Knowledge Graphs

Knowledge graph utilizes NLP to construct a view of nodes and edges through the process of semantic enrichment.

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