Self-Supervised Chinese Ontology Learning from Online Encyclopedias

Table 8

Size of other ontologies.

Ontology	Entities	Facts
KnowItNow	N/A	25,860
KnowItAll	N/A	29,835
SUMO	20,000	60,000
OpenCyc	47,000	306,000
Cyc	500,000	5,000,000
WordNet	155,287	479,887
YAGO	1,056,638	5,000,000
YAGO2	9,800,000	120,000,000
HowNet	191,924	462,433
CCD	66,590	N/A
CCE	2,000,000	N/A
The ontology in [26]	822,135	5,237,520