Revolutionary Strategy for Depicting Knowledge Graphs with Temporal Attributes

Sihan Li and Qi Li ()
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Sihan Li: Computer Science and Engineering Department, Shaoxing University, Shaoxing 312000, China
Qi Li: Computer Science and Engineering Department, Shaoxing University, Shaoxing 312000, China

Mathematics, 2024, vol. 12, issue 9, 1-15

Abstract: In practical applications, the temporal completeness of knowledge graphs is of great importance. However, previous studies have mostly focused on static knowledge graphs, generally neglecting the dynamic evolutionary properties of facts. Moreover, the unpredictable and limited availability of temporal knowledge graphs, together with the complex temporal dependency patterns, make current models inadequate for effectively describing facts that experience temporal transitions. To better represent the evolution of things over time, we provide a learning technique that uses quaternion rotation to describe temporal knowledge graphs. This technique describes the evolution of entities as a temporal rotation change in quaternion space. Compared to the Ermitian inner product in complex number space, the Hamiltonian product in quaternion space is better at showing how things might be connected. This leads to a learning process that is both more effective and more articulate. Experimental results demonstrate that our learning method significantly outperforms existing methods in capturing the dynamic evolution of temporal knowledge graphs, with improved accuracy and robustness across a range of benchmark datasets.

Keywords: temporal attributes; knowledge graph; quaternion rotation; representation learning (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2024
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