Research Article
[Retracted] Knowledge Graph Construction and Application of Power Grid Equipment
Table 1
The performance comparison between relational database and knowledge graph for different knowledge retrieval tasks.
| | Knowledge retrieval task | Relational database | Knowledge graph | Performance improvement | | Time consumption (ms) | Number of records | Time consumption (ms) | Number of records |
| | Path from substation A to substation B | 353 | 1 | 135 | 1 | 61.76% | | Path from substation B to substation A | 288 | 1 | 45 | 1 | 84.38% | | All on-column transformers in a substation | 1072 | 28 | 205 | 66 | 80.88% | | All transmission operation towers under a substation | 381 | 17 | 198 | 17 | 48.03% | | Substation to which a contact belongs | 81 | 1 | 78 | 1 | 3.70% | | Path from substation C to substation D | Cannot achieve | — | 5420 | 16 | — | | Path from substation D to substation C | Cannot achieve | — | 774 | 2 | — | | Distribution station under a substation | Cannot achieve | — | 156 | 314 | — | | Substation connected to a distribution switch station | Cannot achieve | — | 238 | 11 | — |
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