Research Article

Self-Supervised Chinese Ontology Learning from Online Encyclopedias

Table 7

Hyponymy relation extraction result.

Relation source Quantity Precision

From toxonomy system 442,894 1.000
From category label
 In Chinese-Wikipedia 1,549,103 0.978
 In Hudong-Baike and Baidu-Baike 13,902,238 0.944
From HY-CRF 9,723,819 0.916
From HY-SVM 723,076 0.900
From the remaining of HY-CRF and HY-SVM 330,125 0.928

Total 26,671,255 0.935