Research Paper:
Research on the Knowledge Representation Method of Power News Text Based on Time Hyperplane
Yun Wu*, Ziyi Wang*, Yan Du**, Jieming Yang*, Xinru Liu***, Zhenhong Liu*,, and Kai Yang*
*School of Computer Science, Northeast Electric Power University
No.169 Changchun Road, Chuanying District, Jilin, Jilin 132012, China
Corresponding author
**Jilin Meteorological Observation and Protection Center, Jilin Meteorological Service
No.176 Suizhong Road, Lvyuan District, Changchun City, Jilin 130000, China
***Shandong University of Finance and Economics
40 Shungeng Road, Shizhong District, Jinan, Shandong 250014, China
To address the problem that static knowledge graphs cannot evolve over time, which leads to the conflict between entities and relations in the process of knowledge representation, this paper combines the temporal hyperplane with the translation model in knowledge representation, and proposes a knowledge representation method based on the temporal hyperplane for power news texts. First, multiple temporal hyperplanes are established and the temporal factor is added to the scoring function of the translation model; then, the entities and relation of the power news are projected onto the temporal hyperplanes, and the optimal knowledge representation is determined according to the loss function. Taking the power news text as an example, this algorithm well resolves the time-related conflicts in the power news text, and the comprehensive indexes are significantly improved on the time-related triplets.
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